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Descripción
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| Cu(In1-x,Gax)S2 ; was studied using photoreflectance spectroscopy. In this study, efforts are devoted to optimizing PR set-up for measuring CIGS grown by electrodeposition: issues such as photoluminescence perturbation, high roughness and scattering are addressed. Dual frequency photoreflectance, where both probe and pump beams are modulated, is proposed here to over come the poor signal to noise ratio. Considering the low electric field regime, material parameters are extracted by employing the third derivative functional form of dielectric functions to fit data. The reliability of the technique is finally tested by measuring PR spectra on a specific 15 x 15cm2 wafer and explanations of PR line-shape evolution on this wafer are discussed. | |
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Internacional
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Si |
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Nombre congreso
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SPIE Thin Film Solar Technology IV |
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Tipo de participación
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960 |
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Lugar del congreso
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San Diego (CA), EEUU |
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Revisores
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Si |
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ISBN o ISSN
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0277-786X |
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DOI
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10.1117/12.929784 |
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Fecha inicio congreso
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13/08/2012 |
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Fecha fin congreso
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14/08/2012 |
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Desde la página
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847021 |
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Hasta la página
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847021 |
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Título de las actas
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Proc. SPIE 8470, Thin Film Solar Technology IV |