Measurements of Band Gap in Compound Semiconductors - Band Gap Determination from Diffuse Reflectance Spectra -

Introduction

The determination of band gaps in materials is important to obtain basic solid state physics. The band gap indicates the difference in energy between the top of the valence band filled with electrons and the bottom of the conduction band devoid of electrons. The bandgap is related to the electric conductivity of the materials. There is generally no band gap in metals, but the band gap value in insulators is known to be large, and that in semiconductors is typically intermediate between these two. Here we introduce band gap determination from Tauc plots obtained from diffuse reflectance spectra of samples consisting of compound semiconductor materials, which in this case were provided by the Wada Laboratory, Faculty of Science and Technology, Ryukoku University. The experiments were also conducted with the cooperation of the Wada Laboratory, Ryukoku University .

July 8, 2021 GMT