Photoreflectance study in the E1 and E1+Δ1 transition regions of ZnTe

被引：38

作者：

Kaneta, A ^{[1
]}

Adachi, S ^{[1
]}

机构：

[1] Gunma Univ, Fac Engn, Dept Elect Engn, Kiryu, Gumma 3768515, Japan

来源：

JOURNAL OF PHYSICS D-APPLIED PHYSICS | 2000年 / 33卷 / 08期

关键词：

D O I：

10.1088/0022-3727/33/8/303

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Photoreflectance spectra have been measured to determine the E-1 and E-1 + Delta(1) energies in ZnTe at temperatures T between 77 and 300 K using an Ar+-ion laser as a modulation light source. The measured photoreflectance spect a can be successfully explained by an excitonic line shape. The temperature dependence of the E-1 and E-1 + Delta(1) critical-point parameters (energy, amplitude and broadening parameter) have been analysed using the Varshni equation and an empirical expression of the Bose-Einstein type.

引用

页码：901 / 905

页数：5

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