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72. Parameters of the energy spectrum for holes in CuInSe2.

Author

Gorley, P. M., Prokopenko, I. V., Galochkina, O. O., Horley, P. P., Vorobiev, Yu. V., and González-Hernández, J.

Subjects
PARAMETER estimation, COPPER alloys, INDIUM selenide, DISPERSION relations, METAL crystals, MATHEMATICAL models, TEMPERATURE effect
Abstract

This paper reports the coefficients CA,B for the k-linear term in dispersion relation E(k) for holes of the upper valence bands Due to image rights restrictions, multiple line equation(s) cannot be graphically displayed. and Due to image rights restrictions, multiple line equation(s) cannot be graphically displayed. in p-CuInSe2 crystals. We also obtained the tensor components for the carrier effective masses Due to image rights restrictions, multiple line equation(s) cannot be graphically displayed. in all three valence sub-bands of the model semiconductor. It was shown that the energy spectrum parameters for holes in CuInSe2 allow successful explanation for the anisotropy of tensor components describing the interband light absorption coefficient and the published data for the temperature variation of the Hall coefficient, total Hall mobility and thermal voltage within the temperature range 100 K ≤ T ≤ 350 K. [ABSTRACT FROM AUTHOR]

Published
2009

73. Structure and Optical Properties of Nanocomposites Prepared by the Incorporation of Organic Dyes into a SiO2 and SiO2–PMMA Glassy Matrix*.

Author

Díaz-Flores, L. L., Pérez-Robles, J. F., Vorobiev, P., Horley, P. P., Zakharchenko, R. V., González-Hernández, J., and Vorobiev, Yu. V.

Subjects
NONLINEAR optics, OPACITY (Optics), DYES & dyeing, SPECTRUM analysis, COMPOSITE materials, PHYSICAL & theoretical chemistry
Abstract

Electronic spectra of nine different types of organic colorants embedded in three different matrices (sol–gel SiO2 , PMMA, and SiO2–PMMA) were studied experimentally with the use of optical absorption, photoluminescence excitation, and emission techniques, as well as fluorescent microscopy and atomic force microscopy. We found a distinct set of energy levels for each type of dye. The type of matrix and the degree of aggregation of the organic molecules have relatively small effects on the spectra, although their influence on the optical density of the material is essential. The character of the energy spectra is mainly related with the shape of the dye molecule. A quantum mechanical description of the electronic spectra of these molecules was made on the basis of the free electron molecular orbitals approach. The molecules were considered as two-dimensional potential wells with different shapes. The effect of boundary conditions on the energy spectra was studied. The direct solution of the Schrödinger equation shows a good theory–experiment correlation. [ABSTRACT FROM AUTHOR]

Published
2003
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79. Parameters of the energy spectrum for holes in CuInSe2.

Author

Gorley, P. M., Prokopenko, I. V., Galochkina, O. O., Horley, P. P., Vorobiev, Yu. V., and González-Hernández, J.

Subjects
*PARAMETER estimation, *COPPER alloys, *INDIUM selenide, *DISPERSION relations, *METAL crystals, *MATHEMATICAL models, *TEMPERATURE effect
Abstract

This paper reports the coefficients CA,B for the k-linear term in dispersion relation E(k) for holes of the upper valence bands Due to image rights restrictions, multiple line equation(s) cannot be graphically displayed. and Due to image rights restrictions, multiple line equation(s) cannot be graphically displayed. in p-CuInSe2 crystals. We also obtained the tensor components for the carrier effective masses Due to image rights restrictions, multiple line equation(s) cannot be graphically displayed. in all three valence sub-bands of the model semiconductor. It was shown that the energy spectrum parameters for holes in CuInSe2 allow successful explanation for the anisotropy of tensor components describing the interband light absorption coefficient and the published data for the temperature variation of the Hall coefficient, total Hall mobility and thermal voltage within the temperature range 100 K ≤ T ≤ 350 K. [ABSTRACT FROM AUTHOR]

Published
2009

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