Photoreflectance study in the E1 and E1+1 transition regions of ZnTe

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, , Citation Akio Kaneta and Sadao Adachi 2000 J. Phys. D: Appl. Phys. 33 901 DOI 10.1088/0022-3727/33/8/303

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1 Department of Electronic Engineering, Faculty of Engineering, Gunma University, Kiryu-shi, Gunma 376-8515, Japan

Dates

  1. Received 8 November 1999

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0022-3727/33/8/901

Abstract

Photoreflectance spectra have been measured to determine the E1and E1 + 1energies in ZnTe at temperatures Tbetween 77 and 300 K using an Ar+ -ion laser as a modulation light source. The measured photoreflectance spectra can be successfully explained by an excitonic line shape. The temperature dependence of the E1and E1 + 1critical-point parameters (energy, amplitude and broadening parameter) have been analysed using the Varshni equation and an empirical expression of the Bose-Einstein type.

A comment correcting this article has been published: Molina, Espinosa-Luna and Adachi 2004 J. Phys. D: Appl. Phys. 37 2047

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10.1088/0022-3727/33/8/303