Method for determining the stoichiometric composition of a mercury cadmium telluride solid solution from capacitance-voltage characteristics

Autor: V. B. Bogevolnov, A. D. Perepelkin, A. M. Yafyasov, I. M. Ivankiv
Rok vydání: 2001
Předmět:
Zdroj: Semiconductors. 35:525-528
ISSN: 1090-6479
1063-7826
DOI: 10.1134/1.1371615
Popis: A procedure is proposed for determining the stoichiometric composition of an intrinsic semiconductor Hg1−xCdxTe, relying upon the field effect in an electrolyte. An original comparative analysis of experimental capacitance-voltage characteristics and those calculated in terms of a quantum description of the space charge region provides the x value in the surface layer of the semiconductor at a depth comparable with the Debye screening radius. The determined stoichiometric compositions are presented for four Hg1−xCdxTe samples (x=0.205, 0.245, 0.290, and 0.330).
Databáze: OpenAIRE