Photoelectric and photothermal investigations of Zn1-x-yBexMnySe solid solutions

Autor:	A. Marasek, S. Łęgowski, A. J. Zakrzewski, Karol Strzałkowski, Franciszek Firszt, Hanna Meczynska
Rok vydání:	2007
Předmět:	Photoacoustic effect Photoluminescence Chemistry Photoconductivity Analytical chemistry General Chemistry Photoelectric effect Photothermal therapy Condensed Matter Physics Laser Thermal diffusivity law.invention law General Materials Science Luminescence
Zdroj:	Crystal Research and Technology. 42:1352-1358
ISSN:	1521-4079 0232-1300
DOI:	10.1002/crat.200711031
Popis:	Zn1-x-yBexMnySe solid solutions were grown from the melt by the high pressure Bridgman method. Optical, luminescence, photoelectric and photothermal properties of this material were investigated. Interpretation of the piezoelectrically detected photoacoustic spectra was performed using Jackson and Amer theory. From the spectral dependence of the amplitude and phase of photoacoustic signal as well as from photoluminescence spectra the variation of energy gap with composition was determined. The values of thermal diffusivity were derived from the dependence of photoacoustic signal on modulation frequency of the laser radiation illuminating the sample. The photoluminescence-excitation spectra and photoconductivity spectra were measured. The origin of luminescence in Zn1-x-yBexMnySe was discussed. (© 2007 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim)
Databáze:	OpenAIRE
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