Photoluminescence of perovskite lanthanum aluminate single crystals

被引：28

作者：

Kawabe, Y

Yamanaka, A

Hanamura, E

Kimura, T

Takiguchi, Y

Kan, H

Tokura, Y

机构：

[1] Chitose Inst Sci & Technol, Chitose, Hokkaido 0668655, Japan

[2] Univ Arizona, Ctr Opt Sci, Tucson, AZ 85721 USA

[3] Joint Res Ctr Atom Technol, Tsukuba, Ibaraki 3050046, Japan

[4] Hamamatsu Photon, Cent Res Lab, Shizuoka 4348601, Japan

[5] Univ Tokyo, Dept Appl Phys, Tokyo 1130033, Japan

来源：

JOURNAL OF APPLIED PHYSICS | 2000年 / 87卷 / 10期

关键词：

D O I：

10.1063/1.373428

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Photoluminescence was observed from pure perovskite lanthanum aluminate (LaAlO3) single crystals grown with a floating-zone method in reduced atmosphere. Emission was composed of a fast ultraviolet (UV) component and a broad visible emission with a lifetime of 13 mu s. From the lifetime measurement, absorption spectra, excitation spectrum, and comparison between samples as-grown and annealed in oxygen, we assigned the UV emission to band-to-band emission or emission from polaron pairs. The visible component was assigned to emission from the excited state formed at oxygen defect sites. These emissions demonstrate the possibility of light-emitting devices made of perovskite oxides. (C) 2000 American Institute of Physics. [S0021-8979(00)00210-3].

引用

页码：7594 / 7596

页数：3

共 11 条

[1] Optical and photoelectrical studies of charge-transfer processes in YAlO3:Ti crystals [J].