Structure and stability of Gd-doped CeO<sub>2sub> thin films on yttria-stabilized zirconia
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- 作者：Bjö ; rn Arndt<sup>asup><sup> ; sup><sup>bsup> ; Heshmat Noei<sup>asup> ; Thomas F. Keller<sup>asup><sup> ; sup><sup>bsup> ; Patrick Mü ; ller<sup>asup><sup> ; sup><sup>bsup> ; Vedran Vonk<sup>asup> ; Andreas Nenning<sup>csup> ; Alexander K. Opitz<sup>csup> ; Jü ; rgen Fleig<sup>csup> ; Uta Rü ; tt<sup>asup> ; Andreas Stierle<sup>asup><sup> ; sup><sup>bsup><sup> ; sup><sup>andreas.stierle@desy.de" class="auth_mail" title="E-mail the corresponding authorsup>
- 关键词：Ceria ; Yttria stabilized zirconia ; Thermal stability ; Oxygen vacancy formation ; High energy grazing incidence x-ray diffraction ; PETRA III ; Synchrotron radiation
- 刊名：Thin Solid Films
- 出版年：2016
- 出版时间：31 March 2016
- 年：2016
- 卷：603
- 期：Complete
- 页码：56-61
- 全文大小：1328 K
文摘
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We demonstrate that Gadolinium doped Ceria films grow epitaxial on Yttria stabilized Zirconia in (111) and (110) orientation.
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We show by high energy grazing incidence x-ray diffraction that the films are single crystalline and twinning free.
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We give evidence that upon annealing the lattice expands as a result of oxygen vacancy formation.
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We demonstrate the interface to the YSZ substrate is instable upon annealing to 1400 K.
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X-ray photoemission proofs Yttrium segregation to the surface of the GDC films.