Temperature-modulated reflectance of GaSe at the ground state exciton line

✍ Scribed by A. Balzarotti; M. Grandolfo; F. Somma; P. Vecchia

• Book ID: 104542376
• Publisher: John Wiley and Sons
• Year: 1971
• Tongue: English
• Weight: 237 KB
• Volume: 44
• Category: Article
• ISSN: 0370-1972
• DOI: 10.1002/pssb.2220440230

✦ Synopsis

Abstract

Thermoreflectance spectra in the exciton region were obtained on the layer compound GaSe. The experimental results can be explained by assuming that the only temperature effect is a shift of the whole structure. At liquid nitrogen temperature the values E~o~ = 2.093 eV and T = 41.0 meV are found for the first energy level and the broadening parameter, respectively. Measurements at three different temperatures gave the value d__E__~0~/d__T__ = −5.49 × 10^−4^ eV/deg for the temperature coefficient.