Temperature Dependence of Energy Gaps of Some III-V Semiconductors

Abstract

The Brooks-Yu theory is applied to the calculation of the band structure of some III-V semiconductors at finite temperatures. The theory is applied in the context of the empirical pseudopotential method, and utilizes a recent lattice-dynamical calculation of the Debye-Waller factors. The temperature dependence of several band gaps are determined and compared with available experimental data and, in general, good agreement is obtained.