On the Electrical and Optical Properties of p-type Cadmium Telluride Crystals

Abstract

The electrical and optical properties were measured with p-type synthetic CdTe single crystals. The Hell coefficients of the crystals increased by the heat treatment or the growth in the cadmium vapor. From the present measurements it will be shown that the intrinsic energy gap is about 1.43 e.v., the ionization energy of acceptors is about 0.20 e.v. and the Hall mobility of holes is about 80 cm 2 /volt-sec. at room temperature. It seems that the data of Hall mobilities are in agreement with the theory of intercation with the optical mode of lattice vibrations.