OPTICAL DETERMINATIONS OF THE DIRECT ENERGY-GAP IN ALPHA-MERCURIC IODIDE AT ELEVATED-TEMPERATURES

被引：34

作者：

BURGER, A ^{[1
]}

NASON, D ^{[1
]}

机构：

[1] EG&G,ENERGY MEASUREMENTS,SANTA BARBARA OPERAT,GOLETA,CA 93117

来源：

JOURNAL OF APPLIED PHYSICS | 1992年 / 71卷 / 06期

关键词：

D O I：

10.1063/1.351044

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The band-gap energy of single crystals of alpha-mercuric iodide has been obtained for temperatures from ambient to the limit of stability of the phase, 400 K. The method is based on measuring the spectral shifts of the excitonic reflection and absorption peaks with changing temperature, and utilizes results for low temperatures from other investigations. The temperature coefficient of the band gap is - 3.9 x 10(-4) eV/K from 285 to 400 K, and the direct band gap at 300 K is 2.292 eV.

引用

页码：2717 / 2720

页数：4

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