Optical, Structural, and Photocarrier Studies of Cu x (CdTe) y O z Thin Films
Autor: | R. Velázquez-Hernández, J. Carmona-Rodriguez, I. Rojas-Rodriguez, Sergio Jiménez-Sandoval, Mario E. Rodríguez-García |
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Rok vydání: | 2011 |
Předmět: | |
Zdroj: | International Journal of Thermophysics. 32:720-728 |
ISSN: | 1572-9567 0195-928X |
DOI: | 10.1007/s10765-011-0917-y |
Popis: | In this research quaternary alloy thin films made of Cu, CdTe, and O have been grown and characterized. The samples used in this investigation were grown simultaneously by reactive RF co-sputtering and by introducing oxygen and argon in the chamber during growth and changing the power in the Cu target from 10 W to 50 W. The carrier distribution as a function of the position was studied by using energy dispersive spectroscopy–scanning electronic microscopy (EDS–SEM), micro-Raman spectroscopy, and photocarrier images. Structural characterization was carried out by using X-ray diffraction. According to the results, a lateral carrier distribution was found in all samples and a new phase identified as Cu2Te was revealed for samples grown at 50 W. |
Databáze: | OpenAIRE |
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