alexa Single crystal growth and properties of gamma-phase in the CuInSe2+2CdS double left right arrow CuInS2+2CdSe reciprocal system


Journal of Electrical & Electronic Systems

Author(s): Romanyuk YE, Yu KM, Walukiewicz W, Lavrynyuk ZV, Pekhnyo VI, Parasyuk OV

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The intermediate solid solution, gamma-phase, exists in the CuInSe2+2CdS double left right arrow CuInS2+2CdSe reciprocal system. It crystallizes in the cubic structure and has a wide homogeneity range. Single crystals of the gamma-phase are grown by a modified Bridgman method and their composition, crystal structure, optical and electrical properties are studied. The band gap varies from 1.43 to 1.05 eV along the 'Cu3Cd2In3S8'-'CuCd2InSe4' compositional section. The crystals are photosensitive, mostly p-type, with hole concentrations in the 10(15)-10(16) cm(-3) range and mobilities Up to 18 cm(2)/Vs. The results indicate that the gamma-phase can be considered as a new absorbing material for thin-film solar cells.

This article was published in Solar Energy Materials and Solar Cells and referenced in Journal of Electrical & Electronic Systems

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