2020

Wen, Qingbo ; Yu, Zhaoju ; Riedel, Ralf (2020):
The fate and role of in situ formed carbon in polymer-derived ceramics.
In: Progress in Materials Science, 2020 (109), S. 100623. Pergamon-Elsevier Science LTD, ISSN 0079-6425, e-ISSN 1873-2208,
DOI: 10.1016/j.pmatsci.2019.100623,
[Artikel]

2016

Cherkashinin, G. ; Jaegermann, W. (2016):
Dissociative adsorption of H2O on LiCoO2 (00l) surfaces: Co reduction induced by electron transfer from intrinsic defects.
In: The Journal of Chemical Physics, 144 (18), S. 184706. ISSN 0021-9606,
[Artikel]

2015

Liu, Na ; Dittmer, Robert ; Stark, Robert W. ; Dietz, Christian (2015):
Visualization of polar nanoregions in lead-free relaxors via piezoresponse force microscopy in torsional dual AC resonance tracking mode.
In: Nanoscale, 7 (27), S. 11787-11796. ISSN 2040-3364,
[Artikel]

Hinterstein, Manuel ; Schmitt, Ljubomira A. ; Hoelzel, Markus ; Jo, Wook ; Rödel, Jürgen ; Kleebe, Hans-Joachim ; Hoffman, M. (2015):
Cyclic electric field response of morphotropic Bi1/2Na1/2TiO3-BaTiO3 piezoceramics.
In: Applied Physics Letters, 106 (22), S. 222904-1-222904-5. AIP Publishing, ISSN 0003-6951,
DOI: 10.1063/1.4922145,
[Artikel]

Rödel, Jürgen ; Webber, Kyle G. ; Dittmer, Robert ; Jo, Wook ; Kimura, Masahiko ; Damjanovic, Dragan (2015):
Transferring lead-free piezoelectric ceramics into application.
In: Journal of the European Ceramic Society, 35 (6), S. 1659-1681. ISSN 09552219,
[Artikel]

Reinold, Lukas Mirko ; Yamada, Yuto ; Graczyk-Zajac, Magdalena ; Munakata, Hirokazu ; Kanamura, Kiyoshi ; Riedel, Ralf (2015):
The influence of the pyrolysis temperature on the electrochemical behavior of carbon-rich SiCN polymer-derived ceramics as anode materials in lithium-ion batteries.
In: Journal of Power Sources, 282, S. 409-415. Elsevier Science Publishing, ISSN 03787753,
[Artikel]

Acosta, Matias ; Liu, Na ; Deluca, Marco ; Heidt, Sabrina ; Ringl, Ines ; Dietz, Christian ; Stark, Robert W. ; Jo, Wook (2015):
Tailoring ergodicity through selective A-site doping in the Bi1/2Na1/2TiO3–Bi1/2K1/2TiO3 system.
In: Journal of Applied Physics, 117 (13), S. 134106(1-8). AIP Publishing, ISSN 0021-8979,
[Artikel]

Pradeep, V. S. ; Ayana, D. G. ; Graczyk-Zajac, M. ; Soraru, G. D. ; Riedel, R. (2015):
High Rate Capability of SiOC Ceramic Aerogels with Tailored Porosity as Anode Materials for Li-ion Batteries.
In: Electrochimica Acta, 157, S. 41-45. Elsevier Science Publishing, ISSN 00134686,
[Artikel]

Graczyk-Zajac, Magdalena ; Reinold, Lukas ; Kaspar, Jan ; Sasikumar, Pradeep ; Soraru, Gian-Domenico ; Riedel, Ralf (2015):
New Insights into Understanding Irreversible and Reversible Lithium Storage within SiOC and SiCN Ceramics.
In: Nanomaterials, 5 (1), S. 233-245. MDPI AG, Schweiz, ISSN 2079-4991,
[Artikel]

Gassmann, Andrea ; Yampolskii, Sergey V. ; Klein, Andreas ; Albe, Karsten ; Vilbrandt, Nicole ; Pekkola, Oili ; Genenko, Yuri A. ; Rehahn, Matthias ; Seggern, Heinz von (2015):
Study of electrical fatigue by defect engineering in organic light-emitting diodes.
In: Materials Science and Engineering: B, 192, S. 26-51. ISSN 09215107,
[Artikel]

Hausbrand, René ; Cherkashinin, Gennady ; Ehrenberg, Helmut ; Gröting, Melanie ; Albe, Karsten ; Hess, Christian ; Jaegermann, Wolfram (2015):
Fundamental degradation mechanisms of layered oxide Li-ion battery cathode materials: Methodology, insights and novel approaches.
In: Materials Science and Engineering: B, 192, S. 3-15. ISSN 09215107,
[Artikel]

2014

Groszewicz, Pedro B. ; Breitzke, Hergen ; Dittmer, Robert ; Sapper, Eva ; Jo, Wook ; Buntkowsky, Gerd ; Rödel, Jürgen (2014):
Nanoscale phase quantification in lead-free (Bi1/2Na1/2)TiO3-BaTiO3 relaxor ferroelectrics by means of 23Na NMR.
In: Physical Review B, 90 (22), S. 220104(1-5). ISSN 1098-0121,
[Artikel]

Kaspar, Jan ; Graczyk-Zajac, Magdalena ; Lauterbach, Stefan ; Kleebe, Hans-Joachim ; Riedel, Ralf (2014):
Silicon oxycarbide/nano-silicon composite anodes for Li-ion batteries: Considerable influence of nano-crystalline vs. nano-amorphous silicon embedment on the electrochemical properties.
In: Journal of Power Sources, 269, S. 164-172. Elsevier, ISSN 0378-7753,
DOI: 10.1016/j.jpowsour.2014.06.089,
[Artikel]

Gobeljic, Danka ; Dittmer, Robert ; Rödel, Jürgen ; Shvartsman, Vladimir V. ; Lupascu, Doru C. ; Zhang, S. (2014):
Macroscopic and Nanoscopic Polarization Relaxation Kinetics in Lead-Free Relaxors Bi1/2Na1/2TiO3-Bi1/2K1/2TiO3-BiZn1/2Ti1/2O3.
In: Journal of the American Ceramic Society, 97 (12), S. 3904-3912. ISSN 00027820,
[Artikel]

Petzelt, Jan ; Nuzhnyy, Dmitry ; Bovtun, Viktor ; Paściak, Marek ; Kamba, Stanislav ; Dittmer, Robert ; Svirskas, Šarunas ; Banys, Juras ; Rödel, Jürgen (2014):
Peculiar Bi-ion dynamics in Na1/2Bi1/2TiO3from terahertz and microwave dielectric spectroscopy.
In: Phase Transitions, 87 (10-11), S. 953-965. ISSN 0141-1594,
[Artikel]

Zakhozheva, Marina ; Schmitt, Ljubomira A. ; Acosta, Matias ; Jo, Wook ; Rödel, Jürgen ; Kleebe, Hans-Joachim (2014):
In situ electric field induced domain evolution in Ba(Zr0.2Ti0.8)O3-0.3(Ba0.7Ca0.3)TiO3 ferroelectrics.
In: Applied Physics Letters, 105 (11), S. 112904-1-112904-4. AIP Publishing, ISSN 0003-6951,
DOI: 10.1063/1.4896048,
[Artikel]

Sapper, Eva ; Dittmer, Robert ; Damjanovic, Dragan ; Erdem, Emre ; Keeble, David J. ; Jo, Wook ; Granzow, Torsten ; Rödel, Jürgen (2014):
Aging in the relaxor and ferroelectric state of Fe-doped (1-x)(Bi1/2Na1/2)TiO3-xBaTiO3 piezoelectric ceramics.
In: Journal of Applied Physics, 116 (10), S. 104102(1-12). ISSN 0021-8979,
[Artikel]

Pradeep, V. S. ; Graczyk-Zajac, Magdalena ; Wilamowska, Monika ; Riedel, Ralf ; Sorarù, Gian D. (2014):
Influence of pyrolysis atmosphere on the lithium storage properties of carbon-rich polymer derived SiOC ceramic anodes.
In: Solid State Ionics, 262, S. 22-24. Elsevier Science Publishing, ISSN 01672738,
[Artikel]

Fancher, Chris M. ; Jo, Wook ; Rödel, Jürgen ; Blendell, John E. ; Bowman, Keith J. ; Ihlefeld, J. (2014):
Effect of Texture on Temperature-Dependent Properties of K0.5Na0.5NbO3Modified Bi1/2Na1/2TiO3-xBaTiO3.
In: Journal of the American Ceramic Society, 97 (8), S. 2557-2563. ISSN 00027820,
[Artikel]

Nikolaenko, Y. M. ; Kuzovlev, Y. E. ; Medvedev, Y. V. ; Mezin, N. I. ; Fasel, C. ; Gurlo, A. ; Schlicker, L. ; Bayer, T. J. M. ; Genenko, Y. A. (2014):
Macro- and microscopic properties of strontium doped indium oxide.
In: Journal of Applied Physics, 116 (4), S. 043704. AIP Publishing LLC, ISSN 0021-8979,
[Artikel]

Kaspar, Jan ; Terzioglu, Caglar ; Ionescu, Emanuel ; Graczyk-Zajac, Magdalena ; Hapis, Stefania ; Kleebe, Hans-Joachim ; Riedel, Ralf (2014):
Stable SiOC/Sn Nanocomposite Anodes for Lithium-Ion Batteries with Outstanding Cycling Stability.
In: Advanced Functional Materials, 24 (26), S. 4097-4104. Wiley, ISSN 1616-301X,
DOI: 10.1002/adfm.201303828,
[Artikel]

Wilamowska, Monika ; Pradeep, V. S. ; Graczyk-Zajac, Magdalena ; Riedel, Ralf ; Sorarù, Gian Domenico (2014):
Tailoring of SiOC composition as a way to better performing anodes for Li-ion batteries.
In: Solid State Ionics, 260, S. 94-100. Elsevier Science Publishing, ISSN 01672738,
[Artikel]

Sapper, Eva ; Novak, Nikola ; Jo, Wook ; Granzow, Torsten ; Rödel, Jürgen (2014):
Electric-field–temperature phase diagram of the ferroelectric relaxor system (1 − x)Bi1/2Na1/2TiO3 − xBaTiO3 doped with manganese.
In: Journal of Applied Physics, 115 (19), S. 194104(1-7). ISSN 0021-8979,
[Artikel]

Khansur, Neamul H. ; Groh, Claudia ; Jo, Wook ; Reinhard, Christina ; Kimpton, Justin A. ; Webber, Kyle G. ; Daniels, John E. (2014):
Tailoring of unipolar strain in lead-free piezoelectrics using the ceramic/ceramic composite approach.
In: Journal of Applied Physics, 115 (12), S. 124108(1--6). ISSN 0021-8979,
[Artikel]

Baek, Seung-Ho ; Reinold, Lukas Mirko ; Graczyk-Zajac, Magdalena ; Riedel, Ralf ; Hammerath, Franziska ; Büchner, Bernd ; Grafe, Hans-Joachim (2014):
Lithium dynamics in carbon-rich polymer-derived SiCN ceramics probed by nuclear magnetic resonance.
In: Journal of Power Sources, 253, S. 342-348. Elsevier Science Publishing, ISSN 03787753,
[Artikel]

Cherkashinin, Gennady ; Ensling, David ; Jaegermann, Wolfram (2014):
LiMO2 (M = Ni, Co) thin film cathode materials: A correlation between the valence state of transition metals and the electrochemical properties.
In: Journal of Materials Chemistry A, 2 (10), S. 3571-3580. ISSN 2050-7488,
[Artikel]

Sapper, Eva ; Gassmann, Andrea ; Gjødvad, Lars ; Jo, Wook ; Granzow, Torsten ; Rödel, Jürgen (2014):
Cycling stability of lead-free BNT–8BT and BNT–6BT–3KNN multilayer actuators and bulk ceramics.
In: Journal of the European Ceramic Society, 34 (3), S. 653-661. ISSN 09552219,
[Artikel]

Dittmer, Robert ; Gobeljic, Danka ; Jo, Wook ; Shvartsman, Vladimir V. ; Lupascu, Doru C. ; Jones, Jacob L. ; Rödel, Jürgen (2014):
Ergodicity reflected in macroscopic and microscopic field-dependent behavior of BNT-based relaxors.
In: Journal of Applied Physics, 115 (8), S. 084111(1-10). ISSN 0021-8979,
[Artikel]

Dittmer, Robert ; Jo, Wook ; Webber, Kyle G. ; Jones, Jacob L. ; Rödel, Jürgen (2014):
Local structure change evidenced by temperature-dependent elastic measurements: Case study on Bi1/2Na1/2TiO3-based lead-free relaxor piezoceramics.
In: Journal of Applied Physics, 115 (8), S. 084108(1-7). ISSN 0021-8979,
[Artikel]

Pradeep, V. S. ; Graczyk-Zajac, Magdalena ; Riedel, Ralf ; Sorarù, Gian Domenico (2014):
New Insights in to the Lithium Storage Mechanism in Polymer Derived SiOC Anode Materials.
In: Electrochimica Acta, 119, S. 78-85. Elsevier Science Publishing, ISSN 00134686,
[Artikel]

Kaspar, Jan ; Graczyk-Zajac, Magdalena ; Riedel, Ralf (2014):
Determination of the chemical diffusion coefficient of Li-ions in carbon-rich silicon oxycarbide anodes by electro-analytical methods.
In: Electrochimica Acta, 115, S. 665-670. Elsevier Science Publishing, ISSN 00134686,
[Artikel]

2013

Kaspar, Jan ; Graczyk-Zajac, Magdalena ; Riedel, Ralf (2013):
Lithium insertion into carbon-rich SiOC ceramics: Influence of pyrolysis temperature on electrochemical properties.
In: Journal of Power Sources, 244, S. 450-455. Elsevier Science Publishing, ISSN 03787753,
[Artikel]

Wilamowska, Monika ; Graczyk-Zajac, Magdalena ; Riedel, Ralf (2013):
Composite materials based on polymer-derived SiCN ceramic and disordered hard carbons as anodes for lithium-ion batteries.
In: Journal of Power Sources, 244, S. 80-86. Elsevier Science Publishing, ISSN 03787753,
[Artikel]

Zhukov, Sergey ; Genenko, Yuri A. ; Acosta, Matias ; Humburg, Heide ; Jo, Wook ; Rödel, Jürgen ; Seggern, Heinz von (2013):
Polarization dynamics across the morphotropic phase boundary in Ba(Zr0.2Ti0.8)O3-x(Ba0.7Ca0.3)TiO3 ferroelectrics.
In: Applied Physics Letters, 103 (15), S. 152904(1-5). ISSN 00036951,
[Artikel]

Kling, Jens ; Jo, Wook ; Dittmer, Robert ; Schaab, Silke ; Kleebe, Hans-Joachim ; Zhang, S. (2013):
Temperature-Dependent Phase Transitions in the Lead-Free Piezoceramics (1 - x - y)(Bi1/2Na1/2)TiO3-xBaTiO3-y(K0.5Na0.5)NbO3Observed byin situTransmission Electron Microscopy and Dielectric Measurements.
In: Journal of the American Ceramic Society, 96 (10), S. 3312-3324. ISSN 00027820,
[Artikel]

Liu, Guanwei ; Kaspar, Jan ; Reinold, Lukas Mirko ; Graczyk-Zajac, Magdalena ; Riedel, Ralf (2013):
Electrochemical performance of DVB-modified SiOC and SiCN polymer-derived negative electrodes for lithium-ion batteries.
In: Electrochimica Acta, 106, S. 101-108. ISSN 00134686,
[Artikel]

Reinold, Lukas Mirko ; Graczyk-Zajac, Magdalena ; Gao, Yan ; Mera, Gabriela ; Riedel, Ralf (2013):
Carbon-rich SiCN ceramics as high capacity/high stability anode material for lithium-ion batteries.
In: Journal of Power Sources, 236, S. 224-229. Elsevier Science Publishing, ISSN 03787753,
[Artikel]

Jo, Wook ; Daniels, John E. ; Damjanovic, Dragan ; Kleemann, Wolfgang ; Rödel, Jürgen (2013):
Two-stage processes of electrically induced-ferroelectric to relaxor transition in 0.94(Bi1/2Na1/2)TiO3-0.06BaTiO3.
In: Applied Physics Letters, 102 (19), S. 192903(1-4). ISSN 00036951,
[Artikel]

Han, Hyoung-Su ; Jo, Wook ; Kang, Jin-Kyu ; Ahn, Chang-Won ; Won Kim, Ill ; Ahn, Kyoung-Kwan ; Lee, Jae-Shin (2013):
Incipient piezoelectrics and electrostriction behavior in Sn-doped Bi1/2(Na0.82K0.18)1/2TiO3 lead-free ceramics.
In: Journal of Applied Physics, 113 (15), S. 154102(1-6). ISSN 00218979,
[Artikel]

Cherkashinin, Gennady ; Ensling, David ; Komissinskiy, Philipp ; Hausbrand, René ; Jaegermann, Wolfram (2013):
Temperature induced reduction of the trivalent Ni ions in LiMO2 (M=Ni, Co) thin films.
In: Surface Science, 608, S. L1-L4. Elsevier Science Publishing, ISSN 00396028,
[Artikel]

Dittmer, Robert ; Webber, Kyle G. ; Aulbach, Emil ; Jo, Wook ; Tan, Xiaoli ; Rödel, Jürgen (2013):
Electric-field-induced polarization and strain in 0.94(Bi1/2Na1/2)TiO3–0.06BaTiO3 under uniaxial stress.
In: Acta Materialia, 61 (4), S. 1350-1358. ISSN 13596454,
[Artikel]

Zang, Jiadong ; Jo, Wook ; Rödel, Jürgen (2013):
Quenching-induced circumvention of integrated aging effect of relaxor lead lanthanum zirconate titanate and (Bi1/2Na1/2)TiO3-BaTiO3.
In: Applied Physics Letters, 102 (3), S. 032901. ISSN 00036951,
[Artikel]

Dittmer, Robert ; Webber, Kyle G. ; Aulbach, Emil ; Jo, Wook ; Tan, Xiaoli ; Rödel, Jürgen (2013):
Optimal working regime of lead–zirconate–titanate for actuation applications.
In: Sensors and Actuators A: Physical, 189, S. 187-194. Elsevier Science Publishing, ISSN 09244247,
[Artikel]

Becker, D. ; Cherkashinin, G. ; Hausbrand, R. ; Jaegermann, W. (2013):
XPS study of diethyl carbonate adsorption on LiCoO2 thin films.
In: Solid State Ionics, 230, S. 83-85. ISSN 01672738,
[Artikel]

2012

Dittmer, Robert ; Anton, Eva-Maria ; Jo, Wook ; Simons, Hugh ; Daniels, John E. ; Hoffman, Mark ; Pokorny, Jan ; Reaney, Ian M. ; Rödel, Jürgen (2012):
A High-Temperature-Capacitor Dielectric Based on K0.5Na0.5NbO3-Modified Bi1/2Na1/2TiO3-Bi1/2K1/2TiO3.
In: Journal of the American Ceramic Society, 95 (11), S. 3519-3524. ISSN 00027820,
[Artikel]

Dittmer, Robert ; Jo, Wook ; Rödel, Jürgen ; Kalinin, Sergei ; Balke, Nina (2012):
Nanoscale Insight Into Lead-Free BNT-BT-xKNN.
In: Advanced Functional Materials, 22 (20), S. 4208-4215. ISSN 1616301X,
[Artikel]

Graczyk-Zajac, M. ; Toma, L. ; Fasel, C. ; Riedel, R. (2012):
Carbon-rich SiOC anodes for lithium-ion batteries: Part I. Influence of material UV-pre-treatment on high power properties.
In: Solid State Ionics, 225, S. 522-526. Elsevier Science Publishing, ISSN 01672738,
[Artikel]

Aksel, Elena ; Forrester, Jennifer S. ; Foronda, Humberto M. ; Dittmer, Robert ; Damjanovic, Dragan ; Jones, Jacob L. (2012):
Structure and properties of La-modified Na0.5Bi0.5TiO3 at ambient and elevated temperatures.
In: Journal of Applied Physics, 112 (5), S. 054111(1-8). ISSN 00218979,
[Artikel]

Dibandjo, P. ; Graczyk-Zajac, M. ; Riedel, R. ; Pradeep, V. S. ; Soraru, G. D. (2012):
Lithium insertion into dense and porous carbon-rich polymer-derived SiOC ceramics.
In: Journal of the European Ceramic Society, 32 (10), S. 2495-2503. Elsevier Science Publishing, ISSN 09552219,
[Artikel]

Dittmer, Robert ; Jo, Wook ; Aulbach, Emil ; Granzow, Torsten ; Rödel, Jürgen (2012):
Frequency-dependence of large-signal properties in lead-free piezoceramics.
In: Journal of Applied Physics, 112 (1), S. 014101 (1-7). ISSN 00218979,
[Artikel]

Dittmer, Robert ; Aulbach, Emil ; Jo, Wook ; Webber, Kyle G. ; Rödel, Jürgen (2012):
Large blocking force in Bi1/2Na1/2TiO3-based lead-free piezoceramics.
In: Scripta Materialia, 67 (1), S. 100-103. ISSN 13596462,
[Artikel]

Erdem, Emre ; Schaab, Silke ; Jo, Wook ; Ozarowski, Andrew ; Van Tol, Johan ; Eichel, Rüdiger-A. (2012):
High-Frequency EPR Analysis of MnO2-Doped [Bi0.5Na0.5]TiO3-BaTiO3Piezoelectric Ceramics – Manganese Oxidation States and Materials ‘Hardening’.
In: Ferroelectrics, 428 (1), S. 116-121. ISSN 0015-0193,
[Artikel]

Cherkashinin, Gennady ; Nikolowski, Kristian ; Ehrenberg, Helmut ; Jacke, Susanne ; Dimesso, Lucangelo ; Jaegermann, Wolfram (2012):
The stability of the SEI layer, surface composition and the oxidation state of transition metals at the electrolyte-cathode interface impacted by the electrochemical cycling: X-ray photoelectron spectroscopy investigation.
In: Physical Chemistry Chemical Physics, 14 (35), S. 12321-12331. ISSN 1463-9076,
[Artikel]

Jo, Wook ; Dittmer, Robert ; Acosta, Matias ; Zang, Jiadong ; Groh, Claudia ; Sapper, Eva ; Wang, Ke ; Rödel, Jürgen (2012):
Giant electric-field-induced strains in lead-free ceramics for actuator applications – status and perspective.
In: Journal of Electroceramics, ISSN 1385-3449,
[Artikel]

Genenko, Yuri A. ; Zhukov, Sergey ; Yampolskii, Sergey V. ; Schütrumpf, Jörg ; Dittmer, Robert ; Jo, Wook ; Kungl, Hans ; Hoffmann, Michael J. ; Seggern, Heinz von (2012):
Universal Polarization Switching Behavior of Disordered Ferroelectrics.
In: Advanced Functional Materials, 22 (11), S. 2058-2066. ISSN 1616301X,
[Artikel]

Vilbrandt, Nicole ; Nickel, S. ; Immel, S. ; Rehahn, Matthias ; Stegmaier, Katja ; Melzer, Christian ; Seggern, Heinz von
Schlüter, D. A. ; Iawker, C. ; Sakamoto, J. (Hrsg.) (2012):
Chapter 29: Poly(para-Phenylene-Vinylene)s.
In: Synthesis of Polymers: New Structures and Methods, S. 901-922, Weinheim, Wiley-VCH, ISBN ISBN 978-3-527-32757-7,
[Buchkapitel]

Kaspar, Jan ; Graczyk-Zajac, Magdalena ; Riedel, Ralf (2012):
Carbon-rich SiOC anodes for lithium-ion batteries: Part II. Role of thermal cross-linking.
In: Solid State Ionics, Elsevier, ISSN 01672738,
[Artikel]

2011

Luo, Zhenhua ; Granzow, Torsten ; Glaum, Julia ; Jo, Wook ; Rödel, Jürgen ; Hoffman, Mark (2011):
Effect of Ferroelectric Long-Range Order on the Unipolar and Bipolar Electric Fatigue in Bi1/2Na1/2TiO3-Based Lead-Free Piezoceramics.
In: Journal of the American Ceramic Society, 94 (11), S. 3927-3933. ISSN 00027820,
[Artikel]

Jo, Wook ; Schaab, Silke ; Sapper, Eva ; Schmitt, Ljubomira A. ; Kleebe, Hans-Joachim ; Bell, Andrew J. ; Rödel, Jürgen (2011):
On the phase identity and its thermal evolution of lead free (Bi1/2Na1/2)TiO3-6 mol% BaTiO3.
In: Journal of Applied Physics, 110 (7), S. 074106. AIP Publishing, ISSN 0021-8979,
DOI: 10.1063/1.3645054,
[Artikel]

Tran, Vu Diem Ngoc ; Han, Hyoung-Su ; Yoon, Chang-Ho ; Lee, Jae-Shin ; Jo, Wook ; Rödel, Jürgen (2011):
Lead-free electrostrictive bismuth perovskite ceramics with thermally stable field-induced strains.
In: Materials Letters, 65 (17-18), S. 2607-2609. ISSN 0167577X,
[Artikel]

Graczyk-Zajac, M. ; Fasel, Claudia ; Riedel, Ralf (2011):
Polymer-derived-SiCN ceramic/graphite composite as anode material with enhanced rate capability for lithium ion batteries.
In: Journal of Power Sources, 196 (15), S. 6412-6418. Elsevier Science Publishing, ISSN 03787753,
DOI: 10.1016/j.jpowsour.2011.03.076,
[Artikel]

Ehmke, Matthias ; Glaum, Julia ; Jo, Wook ; Granzow, Torsten ; Rödel, Jürgen (2011):
Stabilization of the Fatigue-Resistant Phase by CuO Addition in (Bi1/2Na1/2)TiO3-BaTiO3.
In: Journal of the American Ceramic Society, 94 (8), S. 2473. ISSN 00027820,
[Artikel]

Jo, Wook ; Rödel, Jürgen (2011):
Electric-field-induced volume change and room temperature phase stability of (Bi1/2Na1/2)TiO3-x mol. % BaTiO3 piezoceramics.
In: Applied Physics Letters, 99 (4), S. 042901-1-042901-3. ISSN 00036951,
[Artikel]

Dittmer, Robert ; Jo, Wook ; Daniels, John ; Schaab, Silke ; Rödel, Jürgen (2011):
Relaxor Characteristics of Morphotropic Phase Boundary (Bi1/2Na1/2)TiO3-(Bi1/2K1/2)TiO3 Modified with Bi(Zn1/2Ti1/2)O3.
In: Journal of the American Ceramic Society, S. n/a. ISSN 00027820,
[Artikel]

Daniels, John E. ; Jo, Wook ; Rödel, Jürgen ; Rytz, Daniel ; Donner, Wolfgang (2011):
Structural origins of relaxor behavior in a 0.96(Bi[sub 1/2]Na[sub 1/2])TiO[sub 3]–0.04BaTiO[sub 3] single crystal under electric field.
In: Applied Physics Letters, 98 (25), S. 252904-1-252904-3. ISSN 00036951,
[Artikel]

Graczyk-Zając, Magdalena ; Lazar, Ana Maria ; Chaumont, Denis ; Sacilotti, Marco ; Riedel, Ralf (2011):
Electrochemical Investigation of Lithium Intercalation in MOCVD Derived Nanostructured Anatase/Rutile TiO.
In: ecsTransactions, 35 (34), S. 207-213. The Electrochemical Society, ISSN 19385862,
DOI: 10.1149/1.3654219,
[Artikel]

Reinold, L. Mirko ; Graczyk-Zajac, Magdalena ; Fasel, Claudia ; Riedel, Ralf (2011):
Prevention of Solid Electrolyte Interphase Damaging on Silicon by Using Polymer Derived SiCN Ceramics.
In: ecsTransactions, 35 (34), S. 37-44. The Electrochemical Society, ISSN 19385862,
[Artikel]

Schmitt, Ljubomira A. ; Kling, Jens ; Hinterstein, Manuel ; Hoelzel, Markus ; Jo, Wook ; Kleebe, Hans-Joachim ; Fuess, Hartmut (2011):
Structural investigations on lead-free Bi1/2Na1/2TiO3-based piezoceramics.
In: Journal of Materials Science, 46 (12), S. 4368-4376. Springer, ISSN 0022-2461,
DOI: 10.1007/s10853-011-5427-6,
[Artikel]

Nowak, A. P. ; Graczyk-Zajac, M. ; Riedel, Ralf
Wicks, George ; Simon, Jack ; Zidan, Ragaiy ; Lara‐Curzio, Edgar ; Adams, Thad ; Zayas, Jose ; Karkamkar, Abhi ; Sindelar, Robert ; Garcia‐Diaz, Brenda (Hrsg.) The American Ceramic Society (Urheber) (2011):
Determination of the Diffusion Coefficient of Lithium Ions in Graphite Coated with Polymer-Derived SiCN Ceramic.
In: Ceramic Transactions, 224, In: Materials Challenges in Alternative and Renewable Energy: Ceramic Transactions, Volume 224, S. 243-252, Hoboken, New Jersey, USA, John Wiley and Sons, Inc., ISBN 9781118016053,
[Buchkapitel]

Dittmer, Robert ; Jo, Wook ; Damjanovic, Dragan ; Rödel, Jürgen (2011):
Lead-free high-temperature dielectrics with wide operational range.
In: Journal of Applied Physics, 109 (3), S. 034107-1. ISSN 00218979,
[Artikel]

Luo, Zhenhua ; Glaum, Julia ; Granzow, Torsten ; Jo, Wook ; Dittmer, Robert ; Hoffman, Mark ; Rödel, Jürgen (2011):
Bipolar and Unipolar Fatigue of Ferroelectric BNT-Based Lead-Free Piezoceramics.
In: Journal of the American Ceramic Society, 94 (2), S. 529-535. ISSN 00027820,
[Artikel]

Simons, Hugh ; Daniels, John ; Jo, Wook ; Dittmer, Robert ; Studer, Andrew ; Avdeev, Maxim ; Rödel, Jürgen ; Hoffman, Mark (2011):
Electric-field-induced strain mechanisms in lead-free 94%(Bi[sub 1/2]Na[sub 1/2])TiO[sub 3]–6%BaTiO[sub 3].
In: Applied Physics Letters, 98 (8), S. 082901-1. ISSN 00036951,
[Artikel]

Jo, Wook ; Ollagnier, Jean-Baptiste ; Park, Jong-Lo ; Anton, Eva-Maria ; Kwon, O-Jong ; Park, Chan ; Seo, Hyun-Ho ; Lee, Jong-Sook ; Erdem, Emre ; Eichel, Rüdiger-A. ; Rödel, Jürgen (2011):
CuO as a sintering additive for (Bi1/2Na1/2)TiO3–BaTiO3–(K0.5Na0.5)NbO3 lead-free piezoceramics.
In: Journal of the European Ceramic Society, 31 (12), S. 2107-217. ISSN 09552219,
[Artikel]

Wilamowska, Monika ; Mietlinska, Aneta ; Lisowska-Oleksiak, Anna ; Riedel, Ralf (2011):
Organic-inorganic materials for fast charging-discharging processes in energy storage devices.
In: Functional Materials Letters, 04 (02), S. 193-197. World Scientific Publishing, Singapore, ISSN 1793-6047,
DOI: 10.1142/S1793604711001774,
[Artikel]

2010

Kaspar, Jan ; Mera, Gabriela ; Nowak, Andrzej P. ; Graczyk-Zajac, Magdalena ; Riedel, Ralf (2010):
Electrochemical study of lithium insertion into carbon-rich polymer-derived silicon carbonitride ceramics.
In: Electrochimica Acta, 56 (1), S. 174-182. Elsevier Science Publishing, ISSN 00134686,
DOI: 10.1016/j.electacta.2010.08.103,
[Artikel]

Graczyk-Zajac, Magdalena ; Mera, Gabriela ; Kaspar, Jan ; Riedel, Ralf (2010):
Electrochemical studies of carbon-rich polymer-derived SiCN ceramics as anode materials for lithium-ion batteries.
In: Journal of the European Ceramic Society, 30 (15), S. 3235-3243. Elsevier Science Publishing, ISSN 09552219,
[Artikel]

Kling, Jens ; Tan, Xiaoli ; Jo, Wook ; Kleebe, Hans-Joachim ; Fuess, Hartmut ; Rödel, Jürgen (2010):
In Situ Transmission Electron Microscopy of Electric Field-Triggered Reversible Domain Formation in Bi-Based Lead-Free Piezoceramics.
In: Journal of the American Ceramic Society, 93 (9), S. 2452-2455. Wiley, ISSN 0002-7820,
DOI: 10.1111/j.1551-2916.2010.03778.x,
[Artikel]

Li, Jing ; Wu, Qi-Hui ; Jaegermann, Wolfram (2010):
Resonant photoemission spectroscopy study of electronic structures of LiMn2O4.
In: Applied Physics A, 100 (2), S. 541-543. ISSN 0947-8396,
[Artikel]

Ahn, Cheol-Woo ; Park, Chee-Sung ; Dittmer, Robert ; Hong, Soon-Hyung ; Priya, Shashank (2010):
Effect of elemental diffusion on temperature coefficient of piezoelectric properties in KNN-based lead-free composites.
In: Journal of Materials Science, 45 (14), S. 3961-3965. ISSN 0022-2461,
[Artikel]

Hinterstein, Manuel ; Schönau, Kristin A. ; Kling, Jens ; Fuess, Hartmut ; Knapp, Michael ; Kungl, Hans ; Hoffmann, Michael J. (2010):
Influence of lanthanum doping on the morphotropic phase boundary of lead zirconate titanate.
In: Journal of Applied Physics, 108 (2), S. 024110-1. ISSN 00218979,
[Artikel]

Jo, Wook ; Erdem, Emre ; Eichel, Rüdiger-A. ; Glaum, Julia ; Granzow, Torsten ; Damjanovic, Dragan ; Rödel, Jürgen (2010):
Effect of Nb-donor and Fe-acceptor dopants in (Bi[sub 1/2]Na[sub 1/2])TiO[sub 3]–BaTiO[sub 3]–(K[sub 0.5]Na[sub 0.5])NbO[sub 3] lead-free piezoceramics.
In: Journal of Applied Physics, 108 (1), S. 014110-1. ISSN 00218979,
[Artikel]

Seifert, Klaus T. P. ; Jo, Wook ; Rödel, Jürgen (2010):
Temperature-Insensitive Large Strain of (Bi1/2Na1/2)TiO3-(Bi1/2K1/2)TiO3-(K0.5Na0.5)NbO3Lead-Free Piezoceramics.
In: Journal of the American Ceramic Society, 93 (5), S. 1392-1396. ISSN 00027820,
[Artikel]

Daniels, John E. ; Jo, Wook ; Rödel, Jürgen ; Honkimäki, Veijo ; Jones, Jacob L. (2010):
Electric-field-induced phase-change behavior in (Bi0.5Na0.5)TiO3–BaTiO3–(K0.5Na0.5)NbO3: A combinatorial investigation.
In: Acta Materialia, 58 (6), S. 2103-2111. ISSN 13596454,
[Artikel]

Eichel, Rüdiger-A. ; Kungl, Hans (2010):
Recent developments and future perspectives of lead-free ferroelectrics.
In: Functional Materials Letters, 3 (1), S. 1-4. ISSN 1793-6047,
[Artikel]

Jo, Wook ; Rödel, Jürgen ; Lee, Jong-Sook ; Baik, Yoon-Hee ; Park, Chan (2010):
Effect of substitution of K for Na on the ferroelectric stability and properties in (Bi0.5Na1/2)TiO3-BaTiO3-(K1/2N1/2)NbO3.
In: Functional Materials Letters, 03 (01), S. 41-44. ISSN 1793-6047,
[Artikel]

Kungl, Hans ; Hoffmann, Michael J. (2010):
Effects of sintering temperature on microstructure and high field strain of niobium-strontium doped morphotropic lead zirconate titanate.
In: Journal of Applied Physics, 107 (5), S. 054111-1. ISSN 00218979,
[Artikel]

2009

Genenko, Yuri A. ; Glaum, Julia ; Hirsch, O. ; Kungl, Hans ; Hoffmann, Michael J. ; Granzow, Torsten (2009):
Aging of poled ferroelectric ceramics due to relaxation of random depolarization fields by space-charge accumulation near grain boundaries.
In: Physical Review B, 80 (224109), S. 1-9. ISSN 1098-0121,
[Artikel]

Laubach, Sonja ; Laubach, Stefan ; Schmidt, Peter C. ; Gröting, Melanie ; Albe, Karsten ; Jaegermann, Wolfram ; Wolf, Walter (2009):
Structure, Electronic Structure and Defect Formation Energies of LixCo1-yNiyO2 as a Function of x (0<x<1) and y (y = 0, 0.5, 1).
In: Zeitschrift für Physikalische Chemie, 223 (10-11), S. 1327-1340. ISSN 0942-9352,
[Artikel]

Van Tol, J. ; Dinse, Klaus-Peter ; Kungl, Hans ; Hoffmann, Michael J. (2009):
Pulsed High-Frequency EPR Investigation of Gadolinium-Doped PbZrO3 and PbTiO3.
In: Applied Magnetic Resonance, 36 (2-4), S. 297-307. ISSN 0937-9347,
[Artikel]

Zhang, Shan-Tao ; Kounga Njiwa, Alain Brice ; Jo, Wook ; Jamin, Christine ; Seifert, Klaus T. P. ; Granzow, Torsten ; Rödel, Jürgen ; Damjanovic, Dragan (2009):
High-Strain Lead-free Antiferroelectric Electrostrictors.
In: Advanced Materials, 21 (46), S. 4716-4720. ISSN 09359648,
[Artikel]

Eichel, Rüdiger-A. ; Erünal, Ebru ; Drahus, Michael D. ; Smyth, Donald M. ; Van Tol, Johan ; Acker, Jérôme ; Kungl, Hans ; Hoffmann, Michael J. (2009):
Local variations in defect polarization and covalent bonding in ferroelectric Cu2+-doped PZT and KNN functional ceramics at the morphotropic phase boundary.
In: Physical Chemistry Chemical Physics, 11 (39), S. 8698-8705. ISSN 1463-9076,
[Artikel]

Silvestroni, Laura ; Kleebe, Hans-Joachim ; Kungl, Hans ; Lauterbach, Stefan ; Müller, Mathis M. ; Hoffmann, Michael J. (2009):
Lead Zirconate Titanate-Magnetoplumbite Composites: A First Step Toward Multiferroic Ceramics?
In: Journal of the American Ceramic Society, 92 (10), S. 2362-2367. Wiley, ISSN 0002-7820,
DOI: 10.1111/j.1551-2916.2009.03192.x,
[Artikel]

Eichel, Rüdiger-A. ; Drahus, Michael D. ; Jakes, Peter ; Erünal, Ebru ; Erdem, Emre ; Parashar, Sandeep Kumar ; Kungl, Hans ; Hoffmann, Michael J. (2009):
Defect structure and formation of defect complexes in Cu2+-modified metal oxides derived from a spin-Hamiltonian parameter analysis.
In: Molecular Physics, 107 (19), S. 1981. ISSN 0026-8976,
[Artikel]

Fleissner, Arne ; Stegmaier, Katja ; Melzer, Christian ; Seggern, Heinz von ; Schwalm, Thorsten ; Rehahn, Matthias (2009):
Residual Halide Groups in Gilch-Polymerized Poly(p-phenylene-vinylene) and Their Impact on Performance and Lifetime of Organic Light-Emitting Diodes.
In: Chemistry of Materials, 21 (18), S. 4288-4298. ISSN 0897-4756,
[Artikel]

Schidleja, Martin ; Melzer, Christian ; Roth, Michael ; Schwalm, Thorsten ; Gawrisch, Christian ; Rehahn, Matthias ; Seggern, Heinz von (2009):
The impact of contact formation on the light emission from ambipolar transistors.
In: Applied Physics Letters, 95 (11), S. 113303-1-113303-3. ISSN 00036951,
[Artikel]

Schwalm, Thorsten ; Wiesecke, Jens ; Immel, Stefan ; Rehahn, Matthias (2009):
The Gilch Synthesis of Poly(p-phenylene vinylenes): Mechanistic Knowledge in the Service of Advanced Materials.
In: Macromolecular Rapid Communications, 30 (15), S. 1295-1322. ISSN 10221336,
[Artikel]

Tan, Xiaoli ; Aulbach, Emil ; Jo, Wook ; Granzow, Torsten ; Kling, Jens ; Marsilius, Mie ; Kleebe, Hans-Joachim ; Rödel, Jürgen (2009):
Effect of uniaxial stress on ferroelectric behavior of (Bi1/2Na1/2)TiO3-based lead-free piezoelectric ceramics.
In: Journal of Applied Physics, 106 (4), S. 044107-1. ISSN 0021-8979,
DOI: 10.1063/1.3207827,
[Artikel]

Erdem, Emre ; Mass, Valentina ; Gembus, Armin ; Schulz, Armin ; Liebau-Kunzmann, Verena ; Fasel, Claudia ; Riedel, Ralf ; Eichel, Rüdiger-A. (2009):
Defect structure in lithium-doped polymer-derived SiCN ceramics characterized by Raman and electron paramagnetic resonance spectroscopy.
In: Physical Chemistry Chemical Physics, 11 (27), S. 5628-5633. Royal Society of Chemistry, ISSN 1463-9076,
[Artikel]

Daniels, John E. ; Jo, Wook ; Rödel, Jürgen ; Jones, Jacob L. (2009):
Electric-field-induced phase transformation at a lead-free morphotropic phase boundary: Case study in a 93%(Bi0.5Na0.5)TiO3–7% BaTiO3 piezoelectric ceramic.
In: Applied Physics Letters, 95 (3), S. 032904-1-032904-3. ISSN 00036951,
[Artikel]

Rödel, Jürgen ; Jo, Wook ; Seifert, Klaus T. P. ; Anton, Eva-Maria ; Granzow, Torsten ; Damjanovic, Dragan (2009):
Perspective on the Development of Lead-free Piezoceramics.
In: Journal of the American Ceramic Society, 92 (6), S. 1153-1177. ISSN 00027820,
[Artikel]

Jo, Wook ; Granzow, Torsten ; Aulbach, Emil ; Rödel, Jürgen ; Damjanovic, Dragan (2009):
Origin of the large strain response in (K[sub 0.5]Na[sub 0.5])NbO[sub 3]-modified (Bi[sub 0.5]Na[sub 0.5])TiO[sub 3]–BaTiO[sub 3] lead-free piezoceramics.
In: Journal of Applied Physics, 105 (9), S. 094102-1-094102-5. ISSN 00218979,
[Artikel]

Sakamoto, Junji ; Rehahn, Matthias ; Wegner, Gerhard ; Schlüter, A. D. (2009):
Suzuki Polycondensation: Polyarylenes à la Carte.
In: Macromolecular Rapid Communications, 30 (9-10), S. 653-687. ISSN 10221336,
[Artikel]

Kleebe, Hans-Joachim ; Lauterbach, Stefan ; Silvestroni, Laura ; Kungl, Hans ; Hoffmann, Michael J. ; Erdem, Emre ; Eichel, Rüdiger-A. (2009):
Formation of magnetic grains in ferroelectric Pb[Zr0.6Ti0.4]O3 ceramics doped with Fe3+ above the solubility limit.
In: Applied Physics Letters, 94 (14), S. 142901. AIP Publishing, ISSN 0003-6951,
DOI: 10.1063/1.3103313,
[Artikel]

Laubach, Sonja ; Laubach, Stefan ; Schmidt, Peter C. ; Ensling, David ; Schmid, Stefan ; Jaegermann, Wolfram ; Thißen, Andreas ; Nikolowski, Kristian ; Ehrenberg, Helmut (2009):
Changes in the crystal and electronic structure of LiCoO2 and LiNiO2 upon Li intercalation and de-intercalation.
In: Physical Chemistry Chemical Physics, 11 (17), S. 3278-3289. ISSN 1463-9076,
[Artikel]

Westram, Ilona ; Kungl, Hans ; Hoffmann, Michael J. ; Rödel, Jürgen (2009):
Influence of crystal structure on crack propagation under cyclic electric loading in lead–zirconate–titanate.
In: Journal of the European Ceramic Society, 29 (3), S. 425-430. ISSN 09552219,
[Artikel]

2008

Ensling, David ; Thissen, Andreas ; Jaegermann, Wolfram (2008):
On the formation of lithium oxides and carbonates on Li metal electrodes in comparison to LiCoO2 surface phases investigated by photoelectron spectroscopy.
In: Applied Surface Science, 255 (5), S. 2517-2523. ISSN 01694332,
[Artikel]

Zhang, Shan-Tao ; Kounga Njiwa, Alain Brice ; Aulbach, Emil ; Deng, Yu (2008):
Temperature-Dependent Electrical Properties of 0.94Bi0.5Na0.5TiO3-0.06BaTiO3Ceramics.
In: Journal of the American Ceramic Society, 91 (12), S. 3950-3954. ISSN 00027820,
[Artikel]

Hall, D. A. ; Mori, T. ; Withers, P. J. ; Kungl, Hans ; Hoffmann, Michael J. ; Wright, J. (2008):
Domain switching in rhombohedral PZT ceramics under electrical and mechanical loading.
In: Materials Science and Technology, 24 (8), S. 927-933. ISSN 02670836,
[Artikel]

Hoffmann, M. J. ; Kungl, H. ; Theissmann, R. ; Wagner, S.
Heywang, W. ; Lubitz, K. ; Werding, W. (Hrsg.) (2008):
Microstructural Analysis Based on Microscopy and X-Ray Diffraction.
In: Springer Series in Materials Science, 114, In: Piezoelectricity. Evolution and Future of a Technology., S. 403-421, Springer Verlag Berlin Heidelberg, ISBN 978-3-540-68680-4,
[Buchkapitel]

Farooq, M. U. ; Villaurrutia, R. ; MacLaren, I. ; Burnett, T. L. ; Comyn, Timothy P. ; Bell, Andrew J. ; Kungl, Hans ; Hoffmann, Michael J. (2008):
Electron backscatter diffraction mapping of herringbone domain structures in tetragonal piezoelectrics.
In: Journal of Applied Physics, 104 (2), S. 024111-1-024111-3. ISSN 00218979,
[Artikel]

Erdem, Emre ; Drahus, Michael D. ; Eichel, Rüdiger-A. ; Kungl, Hans ; Hoffmann, Michael J. ; Ozarowski, Andrew ; Van Tol, Johan ; Brunel, Louis Claude (2008):
DEFECT STRUCTURE IN "SOFT" (Gd,Fe)-CODOPED PZT 52.5/47.5 PIEZOELECTRIC CERAMIC.
In: Functional Materials Letters, 1 (1), S. 7. ISSN 1793-6047,
[Artikel]

Farooq, M. U. ; Villaurrutia, R. ; MacLaren, I. ; Kungl, Hans ; Hoffmann, Michael J. ; Fundenberger, J.-J. ; Bouzy, E. (2008):
Using EBSD and TEM-Kikuchi patterns to study local crystallography at the domain boundaries of lead zirconate titanate.
In: Journal of Microscopy, 230 (3), S. 445-454. ISSN 0022-2720,
[Artikel]

Kounga, Alain Brice ; Zhang, Shan-Tao ; Jo, Wook ; Granzow, Torsten ; Rödel, Jürgen (2008):
Morphotropic phase boundary in (1−x)Bi[sub 0.5]Na[sub 0.5]TiO[sub 3]–xK[sub 0.5]Na[sub 0.5]NbO[sub 3] lead-free piezoceramics.
In: Applied Physics Letters, 92 (22), S. 222902-1. ISSN 00036951,
[Artikel]

Kungl, Hans ; Hoffmann, Michael J. (2008):
Method for the estimation of the total displacement of ferroelectric actuators under mixed thermal and electrical loading.
In: Sensors and Actuators A: Physical, 144 (2), S. 328-336. ISSN 09244247,
[Artikel]

Bhuvaneswari, M. S. ; Bramnik, N. N. ; Ensling, D. ; Ehrenberg, H. ; Jaegermann, W. (2008):
Synthesis and characterization of Carbon Nano Fiber/LiFePO4 composites for Li-ion batteries.
In: Journal of Power Sources, 180 (1), S. 553-560. ISSN 03787753,
[Artikel]

Erdem, Emre ; Eichel, Rüdiger-A. ; Kungl, Hans ; Hoffmann, Michael J. ; Ozarowski, Andrew ; Van Tol, Johan ; Brunei, L. C. (2008):
Characterization of (Fe_Zr,Ti-V_o ^ldrldr)^ldr defect dipoles in (La,Fe)-codoped PZT 52.5/47.5 piezoelectric ceramics by multifrequency electron paramagnetic resonance spectroscopy.
In: IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control, 55 (5), S. 1061-1068. ISSN 0885-3010,
[Artikel]

Schmitt, Ljubomira A. ; Theissmann, Ralf ; Kling, Jens ; Kungl, Hans ; Hoffmann, Michael J. ; Fuess, Hartmut (2008):
In situ hot-stage transmission electron microscopy of Pb(Zr0.52Ti0.48)O3.
In: Phase Transitions, 81 (4), S. 323-329. ISSN 0141-1594,
[Artikel]

Eichel, Rüdiger-A. ; Erhart, Paul ; Träskelin, Petra ; Albe, Karsten ; Kungl, Hans ; Hoffmann, Michael J. (2008):
Defect-Dipole Formation in Copper-Doped PbTiO3 Ferroelectrics.
In: Physical Review Letters, 100 (9), S. 095504-1. American Physical Society, ISSN 0031-9007,
[Artikel]

Langecker, Jens ; Rehahn, Matthias (2008):
Iridium-Functionalized Polyfluorenes: Advantages and Limitations of the Suzuki and Yamamoto Approaches.
In: Macromolecular Chemistry and Physics, 209 (3), S. 258-271. ISSN 10221352,
[Artikel]

Schwalm, Thorsten ; Rehahn, Matthias (2008):
Efficient Oxygen-Induced Molar-Mass Control of Poly(p-phenylene vinylenes) Synthesized via the Gilch Route.
In: Macromolecular Rapid Communications, 29 (3), S. 207-213. ISSN 10221336,
[Artikel]

Zhang, Shan-Tao ; Kounga, Alain Brice ; Aulbach, Emil ; Granzow, Torsten ; Jo, Wook ; Kleebe, Hans-Joachim ; Rödel, Jürgen (2008):
Lead-free piezoceramics with giant strain in the system Bi0.5Na0.5TiO3–BaTiO3–K0.5Na0.5NbO3. I. Structure and room temperature properties.
In: Journal of Applied Physics, 103 (3), S. 034107. ISSN 0021-8979,
DOI: 10.1063/1.2838472,
[Artikel]

Zhang, Shan-Tao ; Kounga, Alain Brice ; Aulbach, Emil ; Jo, Wook ; Granzow, Torsten ; Ehrenberg, Helmut ; Rödel, Jürgen (2008):
Lead-free piezoceramics with giant strain in the system Bi[sub 0.5]Na[sub 0.5]TiO[sub 3]–BaTiO[sub 3]–K[sub 0.5]Na[sub 0.5]NbO[sub 3]. II. Temperature dependent properties.
In: Journal of Applied Physics, 103 (3), S. 034108-1. ISSN 00218979,
[Artikel]

Schwalm, Thorsten ; Rehahn, Matthias (2008):
Gel Formation during the Gilch Synthesis of Poly(p-phenylene vinylenes): Evidence of an Unexpected Explanation.
In: Macromolecular Rapid Communications, 29 (1), S. 33-38. ISSN 10221336,
[Artikel]

2007

Balke, Nina ; Kungl, Hans ; Granzow, Torsten ; Lupascu, Doru C. ; Hoffmann, Michael J. ; Rödel, Jürgen (2007):
Bipolar Fatigue Caused by Field Screening in Pb(Zr,Ti)O3Ceramics.
In: Journal of the American Ceramic Society, 90 (12), S. 070922001254005-3874. ISSN 0002-7820,
[Artikel]

Schwalm, Thorsten ; Wiesecke, Jens ; Immel, Stefan ; Rehahn, Matthias (2007):
Toward Controlled Gilch Synthesis of Poly(p-phenylene vinylenes): Anionic vs Radical Chain Propagation, a Mechanistic Reinvestigation.
In: Macromolecules, 40 (25), S. 8842. ISSN 0024-9297,
[Artikel]

Erdem, Emre ; Eichel, Rüdiger-A. ; Kungl, Hans ; Hoffmann, Michael J. ; Ozarowski, Andrew ; Van Tol, Hans ; Brunel, Louis Claude (2007):
Local symmetry-reduction in tetragonal (La,Fe)-codoped Pb[Zr0.4Ti0.6]O3 piezoelectric ceramics.
In: Physica Scripta, (T129), S. 12-16. Institute of Physics Publishing (IOP), ISSN 0031-8949,
DOI: 10.1088/0031-8949/2007/T129/003,
[Artikel]

Fett, Theo ; Kungl, Hans ; Hoffmann, Michael J. (2007):
Permittivity and loss tangent of unpoled LaSr-doped PZT under compressive loading.
In: Journal of Materials Science, 42 (20), S. 8753-8756. ISSN 0022-2461,
[Artikel]

Kungl, Hans ; Hoffmann, Michael J. (2007):
Temperature dependence of poling strain and strain under high electric fields in LaSr-doped morphotropic PZT and its relation to changes in structural characteristics.
In: Acta Materialia, 55 (17), S. 5780-5791. ISSN 13596454,
[Artikel]

Schönau, Kristin ; Knapp, Michael ; Kungl, Hans ; Hoffmann, Michael J. ; Fuess, Hartmut (2007):
In situ synchrotron diffraction investigation of morphotropic Pb[Zr1−xTix]O3 under an applied electric field.
In: Physical Review B, 76 (14), S. 144112-1-144112-12. ISSN 1098-0121,
[Artikel]

Puff, Werner ; Balke, Nina ; Kungl, Hans ; Hoffmann, Michael J. ; Balogh, Adam G. (2007):
Effect of Fe-doping and electrical load on the defect structure of Pb(ZrxTi1-x)O3ferroelectric ceramics.
In: physica status solidi (c), 4 (10), S. 3839-3842. ISSN 18626351,
[Artikel]

Zhang, Shan-Tao ; Kounga, Alain Brice ; Aulbach, Emil ; Ehrenberg, Helmut ; Rödel, Jürgen (2007):
Giant strain in lead-free piezoceramics Bi[sub 0.5]Na[sub 0.5]TiO[sub 3]–BaTiO[sub 3]–K[sub 0.5]Na[sub 0.5]NbO[sub 3] system.
In: Applied Physics Letters, 91 (11), S. 112906-1. ISSN 00036951,
[Artikel]

Rehahn, Matthias ; Langecker, Jens (2007):
POLY 320-Polyfluorene-based iridium complex polymers for organic light-emitting diodes.
In: ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY, 234, AMER CHEMICAL SOC, 1155 16TH ST, NW, WASHINGTON, DC 20036 USA, ISSN 0065-7727,
[Artikel]

Theissmann, Ralf ; Schmitt, Ljubomira A. ; Kling, Jens ; Schierholz, Roland ; Schönau, Kristin A. ; Fuess, Hartmut ; Knapp, Michael ; Kungl, Hans ; Hoffmann, Michael J. (2007):
Nanodomains in morphotropic lead zirconate titanate ceramics: On the origin of the strong piezoelectric effect.
In: Journal of Applied Physics, 102 (2), S. 024111-1. ISSN 00218979,
[Artikel]

Schwalm, Thorsten ; Rehahn, Matthias (2007):
Toward Controlled Gilch Synthesis of Poly(p-phenylenevinylenes): Synthesis and Thermally Induced Polymerization of α-Bromo-p-quinodimethanes.
In: Macromolecules, 40 (11), S. 3921-3928. ISSN 0024-9297,
[Artikel]

Schönau, Kristin A. ; Schmitt, Ljubomira A. ; Knapp, Michael ; Fuess, Hartmut ; Eichel, Rüdiger-A. ; Kungl, Hans ; Hoffmann, Michael J. (2007):
Nanodomain structure of Pb[Zr_{1−x}Ti_{x}]O_{3} at its morphotropic phase boundary: Investigations from local to average structure.
In: Physical Review B, 75 (18), S. 184117-1-184117-10. ISSN 1098-0121,
[Artikel]

Gumann, Sina ; Nestle, Nikolaus ; Liebau-Kunzmann, Verena ; Riedel, Ralf (2007):
Investigations of Li-containing SiCN(O) ceramics via 7Li MAS NMR.
In: Solid State Nuclear Magnetic Resonance, 31 (2), S. 82-90. Elsevier, ISSN 09262040,
[Artikel]

Kungl, Hans ; Theissmann, Ralf ; Knapp, Michael ; Baehtz, Carsten ; Fuess, Hartmut ; Wagner, Susanne ; Fett, Theo ; Hoffmann, Michael J. (2007):
Estimation of strain from piezoelectric effect and domain switching in morphotropic PZT by combined analysis of macroscopic strain measurements and synchrotron X-ray data.
In: Acta Materialia, 55 (6), S. 1849-1861. [Artikel]

Schmitt, Ljubomira A. ; Schönau, Kristin A. ; Theissmann, Ralf ; Fuess, Hartmut ; Kungl, Hans ; Hoffmann, Michael J. (2007):
Composition dependence of the domain configuration and size in Pb(Zr[sub 1−x]Ti[sub x])O[sub 3] ceramics.
In: Journal of Applied Physics, 101 (7), S. 074107-1. ISSN 00218979,
[Artikel]

Zuo, Ruzhong ; Granzow, Torsten ; Lupascu, Doru C. ; Rödel, Jürgen (2007):
PMN-PT Ceramics Prepared By Spark Plasma Sintering.
In: Journal of the American Ceramic Society, 90 (4), S. 1101-1106. ISSN 0002-7820,
[Artikel]

Laubach, Stefan ; Schmidt, Peter C. ; Thißen, Andreas ; Fernandez-Madrigal, Francisco Javier ; Wu, Qi-Hui ; Jaegermann, Wolfram ; Klemm, Matthias ; Horn, Siegfried (2007):
Theoretical and experimental determination of the electronic structure of V2O5, reduced V2O5-x and sodium intercalated NaV2O5.
In: Physical Chemistry Chemical Physics, 9 (20), S. 2564-2576. ISSN 1463-9076,
[Artikel]

Kungl, Hans ; Fett, Theo ; Wagner, Susanne ; Hoffmann, Michael J. (2007):
Nonlinearity of strain and strain hysteresis in morphotropic LaSr-doped lead zirconate titanate under unipolar cycling with high electric fields.
In: Journal of Applied Physics, 101 (4), S. 044101-1-044101-9. ISSN 00218979,
[Artikel]

Wiesecke, Jens ; Rehahn, Matthias (2007):
Direct Observation ofα-Chloro-p-quinodimethane as the Real Monomer in the Gilch Polymerization Leading to Poly(p-phenylene vinylene)s.
In: Macromolecular Rapid Communications, 28 (2), S. 188-193. ISSN 10221336,
[Artikel]

Wiesecke, Jens ; Rehahn, Matthias (2007):
The Effect of Persistent TEMPO Radicals on the Gilch Polymerization.
In: Macromolecular Rapid Communications, 28 (1), S. 78-83. ISSN 10221336,
[Artikel]

Schwalm, Thorsten ; Wiesecke, Jens ; Rehahn, Matthias (2007):
Improved Poly(p-phenylene vinylenes) through Profound Mechanistic Understanding of their Synthesis via Gilch Reaction.
In: Electroactive Polymers: Materials & Devices, 2, S. 90-103. Hrg.: S. A. Hashmi, A. Chandra, S. Chandra, [Artikel]

2006

Granzow, Torsten ; Suvaci, Ender ; Kungl, Hans ; Hoffmann, Michael J. (2006):
Deaging of heat-treated iron-doped lead zirconate titanate ceramics.
In: Applied Physics Letters, 89 (26), S. 262908-1. ISSN 00036951,
[Artikel]

Wu, Q.-H. ; Thissen, A. ; Jaegermann, W. ; Schüz, M. ; Schmidt, P. C. (2006):
Resonant photoemission spectroscopy study of electronic structure of V2O5.
In: Chemical Physics Letters, 430 (4-6), S. 309-313. ISSN 00092614,
[Artikel]

Wu, Qi-Hui ; Thissen, Andreas ; Jaegermann, Wolfram (2006):
Photoemission spectroscopy and electronic structures of LiMn2O4.
In: Chinese Physics Letters, 23 (8), S. 2202-2205. ISSN 0256-307X,
[Artikel]

Granzow, Torsten ; Kounga Njiwa, Alain Brice ; Aulbach, Emil ; Rödel, Jürgen (2006):
Electromechanical poling of piezoelectrics.
In: Applied Physics Letters, 88 (25), S. 252907-1. ISSN 00036951,
[Artikel]

Zuo, Ruzhong ; Rödel, Jürgen ; Chen, Renzheng ; Li, Longtu (2006):
Sintering and Electrical Properties of Lead-Free Na0.5K0.5NbO3 Piezoelectric Ceramics.
In: Journal of the American Ceramic Society, 89 (6), S. 2010-2015. ISSN 0002-7820,
[Artikel]

Meštrić, Hrvoje ; Eichel, Rüdiger-A. ; Dinse, Klaus-Peter ; Ozarowski, Andrew ; Van Tol, Johan ; Brunel, Louis ; Kungl, Hans ; Hoffmann, Michael ; Schönau, Kristin ; Knapp, Michael ; Fuess, Hartmut (2006):
Iron-oxygen vacancy defect association in polycrystalline iron-modified PbZrO3 antiferroelectrics: Multifrequency electron paramagnetic resonance and Newman superposition model analysis.
In: Physical Review B, 73 (18), S. 184105-1-184105-10. ISSN 1098-0121,
[Artikel]

Donsanti, F. ; Kostourou, K. ; Decker, F. ; Ibris, N. ; Salvi, A. M. ; Liberatore, M. ; Thissen, A. ; Jaegermann, W. ; Lincot, D. (2006):
Alkali ion intercalation in V2O5: Preparation and laboratory characterization of thin films produced by ALD.
In: Surface and Interface Analysis, 38 (4), S. 815-818. ISSN 0142-2421,
[Artikel]

Eichel, Rüdiger-A. ; Meštrić, Hrvoje ; Kungl, Hans ; Hoffmann, Michael J. (2006):
Multifrequency electron paramagnetic resonance analysis of polycrystalline gadolinium-doped PbTiO[sub 3]—Charge compensation and site of incorporation.
In: Applied Physics Letters, 88 (12), S. 122506-1. ISSN 00036951,
[Artikel]

Kolb, Robert ; Fasel, Claudia ; Liebau-Kunzmann, Verena ; Riedel, Ralf (2006):
SiCN/C-ceramic composite as anode material for lithium ion batteries.
In: Journal of the European Ceramic Society, 26 (16), S. 3903-3908. Elsevier Science Publishing, ISSN 09552219,
[Artikel]

Liebau-Kunzmann, Verena ; Fasel, Claudia ; Kolb, Robert ; Riedel, Ralf (2006):
Lithium containing silazanes as precursors for SiCN:Li ceramics—A potential material for electrochemical applications.
In: Journal of the European Ceramic Society, 26 (16), S. 3897-3901. Elsevier Science Publishing, ISSN 09552219,
[Artikel]

2005

Eichel, Rüdiger-A. ; Meštrić, Hrvoje ; Dinse, Klaus-Peter ; Ozarowski, Andrew ; Van Tol, Johan ; Brunel, Louis Claude ; Kungl, Hans ; Hoffmann, Michael J. (2005):
High-field/high-frequency EPR of paramagnetic functional centers in Cu2+- and Fe3+-modified polycrystalline Pb[ZrxTi1−x]O3 ferroelectrics.
In: Magnetic Resonance in Chemistry, 43 (S1), S. 166-173. ISSN 0749-1581,
[Artikel]

Wu, Qi-Hui ; Thißen, Andreas ; Jaegermann, Wolfram (2005):
XPS and UPS study of Na deposition on thin film V2O5.
In: Applied Surface Science, 252 (5), S. 1801-1805. ISSN 01694332,
[Artikel]

Ensling, D. ; Thißen, A. ; Gassenbauer, Y. ; Klein, Andreas ; Jaegermann, W. (2005):
In-Situ Preparation and Analysis of Functional Oxides.
In: Advanced Engineering Materials, 7 (10), S. 945-949. ISSN 1438-1656,
[Artikel]

Alcántara, Ricardo ; Ortiz, Gregorio F. ; Lavela, Pedro ; Tirado, José L. ; Jaegermann, Wolfram ; Thißen, Andreas (2005):
Rotor blade grinding and re-annealing of LiCoO2: SEM, XPS, EIS and electrochemical study.
In: Journal of Electroanalytical Chemistry, 584 (2), S. 147-156. ISSN 15726657,
[Artikel]

Thißen, Andreas ; Ensling, David ; Fernández-Madrigal, Francisco Javier ; Jaegermann, Wolfram ; Alcántara, Ricardo ; Lavela, Pedro ; Tirado, José L. (2005):
Photoelectron Spectroscopic Study of the Reaction of Li and Na with NiCo2O4.
In: Chemistry of Materials, 17 (20), S. 5202-5208. ISSN 0897-4756,
[Artikel]

Wu, Qi-Hui ; Thißen, Andreas ; Jaegermann, Wolfram (2005):
Photoelectron spectroscopic study of Li oxides on Li over-deposited VO thin film surfaces.
In: Applied Surface Science, 250 (1-4), S. 57-62. ISSN 01694332,
[Artikel]

MacLaren, Ian ; Schmitt, Ljubomira A. ; Fuess, Hartmut ; Kungl, Hans ; Hoffmann, Michael J. (2005):
Experimental measurement of stress at a four-domain junction in lead zirconate titanate.
In: Journal of Applied Physics, 97 (9), S. 094102-1-094102-8. ISSN 00218979,
[Artikel]

Wu, Qi-Hui ; Thißen, Andreas ; Jaegermann, Wolfram (2005):
Photoelectron spectroscopic study of Li intercalation into V2O5 thin films.
In: Surface Science, 578 (1-3), S. 203-212. ISSN 00396028,
[Artikel]

Eichel, Rüdiger-A. ; Dinse, Klaus-Peter ; Kungl, Hans ; Hoffmann, Michael J. ; Ozarowski, Andrew ; Van Tol, Johan ; Brunel, Louis Claude (2005):
Exploring the morphotropic phase boundary in copper(II)-modified Pb[Zr0.54Ti0.46]O3 ferroelectrics.
In: Applied Physics A, 80 (1), S. 51-54. [Artikel]

Waser, Rainer ; Böttcher, Ulrich ; Tiedke, Stephan (Hrsg.) (2005):
Polar Oxides – Properties, Characterization and Imaging.
WILEY-VCH, ISBN 3-527-40532-1 oder 978-3-527-60489-0,
[Buch]

2004

Gottschalk, Sebastian ; Hahn, Horst ; Balogh, Adam G. ; Puff, Werner ; Kungl, Hans ; Hoffmann, Michael J. (2004):
A positron lifetime study of lanthanum and niobium doped Pb(Zr[sub 0.6]Ti[sub 0.4])O[sub 3].
In: Journal of Applied Physics, 96 (12), S. 7464-7470. American Institute of Physics, ISSN 00218979,
[Artikel]

Wu, Qi-Hui ; Thissen, Andreas ; Jaegermann, Wolfram ; Liu, Meilin (2004):
Photoelectron spectroscopy study of oxygen vacancy on vanadium oxides surface.
In: Applied Surface Science, 236 (1-4), S. 473-478. ISSN 01694332,
[Artikel]

Puff, Werner ; Kungl, Hans ; Hoffmann, Michael J. ; Gottschalk, Sebastian ; Balogh, Adam G. (2004):
Vacancy-like defects in doped Pb(Zr60Ti40)O-3 observed by positron lifetime and coincident Doppler spectroscopy.
In: POSITRON ANNIHILATION, ICPA-13, PROCEEDINGS, 445 (6), S. 171-173. MATERIALS SCIENCE FORUM, ISSN 0255-5476,
[Artikel]

Eichel, Rüdiger-A. ; Kungl, Hans ; Hoffmann, Michael J. (2004):
Determination of functional center local environment in copper-modified Pb[Zr[sub 0.54]Ti[sub 0.46]]O[sub 3] ceramics.
In: Journal of Applied Physics, 95 (12), S. 8092-1. ISSN 00218979,
[Artikel]

Wu, Qi-Hui ; Thißen, Andreas ; Jaegermann, Wolfram (2004):
Photoelectron spectroscopic study of Na intercalation into V2O5 thin films.
In: Solid State Ionics, 167 (1-2), S. 155-163. ISSN 01672738,
[Artikel]

Hoffmann, Michael J. ; Kungl, Hans (2004):
High strain lead-based perovskite ferroelectrics.
In: Current Opinion in Solid State and Materials Science, 8 (1), S. 51-57. ISSN 13590286,
[Artikel]

2003

Wiesecke, Jens ; Rehahn, Matthias (2003):
Paracyclophanes with defined substitution pattern - Key compounds for the mechanistic understanding of the Gilch reaction to poly(p-phenylene vinylene)s.
In: Angewandte Chemie International Edition, 42 (5), S. 567-+. ISSN 1433-7851,
[Artikel]

Rehahn, Matthias (2003):
Elektrisch leitfähige Kunststoffe: Der Weg zu einer neuen Materialklasse.
In: Chemie in unserer Zeit, 37 (1), S. 18-30. ISSN 00092851,
[Artikel]