Optical absorption spectra of protonic conductor CaZr0.95Sc0.05O3-δ

被引：4

作者：

Higuchi, T ^{[1
]}

Tsukamoto, T

Sata, N

Ishigame, M

Yamaguchi, S

Shin, S

机构：

[1] Tokyo Univ Sci, Dept Appl Phys, Tokyo 1628601, Japan

[2] Tohoku Univ, Inst Multidisciplinary Res Adv Mat, Sendai, Miyagi 9808577, Japan

[3] Univ Tokyo, Dept Mat Sci, Tokyo 1138656, Japan

[4] RIKEN, Hyogo 6795143, Japan

[5] Univ Tokyo, Inst Solid State Phys, Chiba 2778581, Japan

来源：

JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS BRIEF COMMUNICATIONS & REVIEW PAPERS | 2003年 / 42卷 / 03期

关键词：

CaZr0.95Sc0.05O3-delta; protonic conductor; optical absorption spectra; hole; oxygen vacancy;

D O I：

10.1143/JJAP.42.1331

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The fundamental absorption edge of protonic conductor Sc-doped CaZrO3 (CaZr0.95Sc0.O-05(3-delta)) was firstly measured by optical absorption spectroscopy in the vacuum ultraviolet region. In dry-annealed CaZr0.95Sc0.05O3-delta, a large absorption structure was observed at similar to0.7 eV from the top of the valence band of wet-annealed CaZr0.95Sc0.05O3-delta. The intensity is lower in wet-annealed CaZr0.95Sc0.05O3-delta. This finding indicates that the doped protons are exchanged with holes or oxygen vacancies, which are formed by Sc3+ doping.

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页码：1331 / 1332

页数：2

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