On the Dielectric Constants of A^IB^IIIC Chalcopyrite Semiconductor Compounds

Abstract

Values of the static, E~, and high-frequency, E,, dielectric constants of I-111-VI, chalcopyrite compounds are estimated by using an empirical model proposed by Nag for cubic semiconductors, which relates these constants to the average atomic number of its constituent atoms Zav. It is found, as in the cubic semiconductors, that the inverse of both these constants is linearly related to Zav. It is also suggested that E~ and E , thus obtained should be more reliable than those calculated from the energy gap E,, due to the wide range of values of this parameter reported in some I-111-VI, chalcopyrite compounds.

Synthesis and Characterization of Ternary CuInS2 Nanorods via a Hydrothermal Route

“…The result indicates that as-obtained CuInS nanorods are too large for quantum con"nement, and in fact the Bohr exciton radius for CuInS is 3.2 nm, which can be calculated according to Refs. (26,27). The average particle diameter, as calculated from the maximum of the absorption curve ( "825 nm), is 21 nm (28), which is consistent with the TEM and XRD results.…”

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