Scanning probe microscopy polarization experiments with polycrystalline Ce0.8Gd0.2 ∿xPrxO2 ∿δ and Ce0.8Y0.2O2 ∿δ sin
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- 作者：Kerstin Neuhausa ; kerstin.neuhaus@uni-muenster.de" class="auth_mail" title="E-mail the corresponding author ; Falk Schulze-Kü ; ppersb ; Stefan Baumannb ; Gregor Ulbrichc ; Martin Lerchc ; Hans-Dieter Wiemhö ; fera
- 关键词：Doped ceria ; Work function ; KPFM ; Low temperature transport ; Surface potential
- 刊名：Solid State Ionics
- 出版年：2016
- 出版时间：May 2016
- 年：2016
- 卷：288
- 期：Complete
- 页码：325-330
- 全文大小：739 K
文摘
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Reversible surface potential changes introduced by polarization experiment with nanoprobe
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Kelvin probe maps of pre-polarized area show time-dependent relaxation to initial state.
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Monocrystalline and polycrystalline acceptor doped ceria samples were compared.
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Relaxation behavior was found to vary with dopant (Gd/Pr) and grain/GB ratio.
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Measurements were performed at room temperature under air.