URBACH RULE IN THE LUMINESCENCE SPECTRUM OF HGI2 AND A META-STABLE LOCALIZED EXCITON

被引：2

作者：

GOTO, T ^{[1
]}

TAKEDA, J ^{[1
]}

MATSUOKA, M ^{[1
]}

机构：

[1] UNIV TOKYO,INST SOLID STATE PHYS,MINATO KU,TOKYO 106,JAPAN

来源：

JOURNAL OF LUMINESCENCE | 1988年 / 40-1卷

关键词：

CRYSTALS; -; LUMINESCENCE; PHOTONS;

D O I：

10.1016/0022-2313(88)90292-X

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

It is found that the Urbach rule stands for the luminescence of a HgI//2 crystal and hence, the excitons with the energy corresponding to the Urbach tail (Urbach excitons) are in the thermal equilibrium. It is suggested from the excitation spectra and the decay time of the luminescence suggest that the Urbach excitons move in the crystal resulting in annihilation around an impurity or a defect.

引用

页码：481 / 482

页数：2