Study Solid Solutions in CdS/CdTe Thin Films Heterosystems Obtaine by DC Magnetron Sputtering

Autor: Dobrozhan, A. I., Kopach, G. I., Mygushchenko, R. P., Khrypunov, G. S., Harchenko, M. M., Polezhaeva, O. V.
Jazyk: angličtina
Rok vydání: 2018
Předmět:
Popis: The influence of physical and technological condensation mode by direct current magnetron sputtering on the crystal structure and optical properties of grown CdS and CdTe films, CdS/CdTe thin films heterosystems was investigated. Traditional chloride treatment of thin-film CdS/CdТе heterosystem leads to recrystallization of CdTe basic layer and its wurtzite-sphalerite phase transition. After Cl treatment a bandgap in CdTe increases up to 1.5 eV. For CdS/CdТе heterosystem a decrease of a bandgap to 1.45 eV is observed which is determined by formation of solid solutions of CdSхТе₁₋ₓ at the interphase boundary of CdS/CdТе. The value of the stoichiometric parameter х=0,1±0,01 was calculated using the optical researches data.
Databáze: OpenAIRE