Photoluminescence spectra of perovskite oxide semiconductors

被引：47

作者：

Yamada, Yasuhiro ^{[1
]}

Kanemitsu, Yoshihiko ^{[1
,2
]}

机构：

[1] Kyoto Univ, Inst Chem Res, Uji, Kyoto 6110011, Japan

[2] Kyoto Univ, Photon & Elect Sci & Engn Ctr, Kyoto 6158510, Japan

来源：

JOURNAL OF LUMINESCENCE | 2013年 / 133卷

关键词：

Perovskite oxide; Photoluminescence; SrTiO3; Auger recombination; Ar+ irradiation; NB-DOPED SRTIO3; STRONTIUM-TITANATE; DIELECTRIC-PROPERTIES; OPTICAL-PROPERTIES; SINGLE-CRYSTALS; LIGHT-EMISSION; LINBO3; TEMPERATURE; LITAO3; LUMINESCENCE;

D O I：

10.1016/j.jlumin.2011.12.037

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We report photoluminescence (PL) spectra of typical wide-gap perovskite semiconductors, SrTiO3, KTaO3, BaTiO3, LiNbO3, and LiTaO3. In SrTiO3, KTaO3, and BaTiO3, undoped crystals show no PL at room temperature, while broad PL bands appear by Ar+ irradiation. The room temperature PL properties of SrTiO3, KTaO3, and BaTiO3 are very similar to each other, but are different from those of LiNbO3 and LiTaO3. At low temperatures, only Ar+-irradiated SrTiO3 crystals show sharp band-edge PL, corresponding to the band-to-band radiative recombination of free electrons and holes. Unique PL behaviors in SrTiO3 are discussed, compared to other perovskite oxides. (c) 2011 Elsevier B.V. All rights reserved.

引用

页码：30 / 34

页数：5

共 35 条

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