Intrinsic luminescence in PbBr2 crystals under one- and two-photon excitation

被引：10

作者：

Iwanaga, M

Watanabe, M

Hayashi, T

机构：

[1] Kyoto Univ, Fac Integrated Human Studies, Dept Fundamental Sci, Sakyo Ku, Kyoto 6068501, Japan

[2] Kyoto Univ, Grad Sch Human & Environm Studies, Kyoto 6068501, Japan

来源：

JOURNAL OF LUMINESCENCE | 2000年 / 87-9卷

关键词：

PbBr2; exciton; luminescence properties; two-photon excitation;

D O I：

10.1016/S0022-2313(99)00317-8

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We studied luminescence properties in PbBr2 crystals under one- and two-photon excitation, and found that a luminescence band at 2.56 eV is intrinsic in origin. Decay time measurements revealed the exciton relaxation process in which an exciton is decomposed into a charge-separated pair of a self-trapped electron (STEL) and a self-trapped hole (STH). The relaxation process is ascribed to strong interaction of electrons and holes with phonons. (C) 2000 Elsevier Science B.V. All rights reserved.

引用

页码：287 / 289

页数：3

共 6 条

[1] REFLECTANCE MEASUREMENTS ON SINGLE-CRYSTALS OF PBFCL, PBFBR, AND PBBR2 [J].