Article ID Journal Published Year Pages File Type
729842 Materials Science in Semiconductor Processing 2009 6 Pages PDF
Abstract

Polycrystalline thin films CuGa0.3In0.7Se2 (CIGS) were deposited onto coated soda-lime glass and transparent conducting oxide (SnO2) substrates at 480 °C substrate temperature with a low cost and potentially large area deposition method by using close-spaced vapor transport technique (CSVT) designed in our laboratory (LAMPS). Morphological, structural and compositional properties were determined using X-ray diffraction (XRD), scanning electron microscopy (SEM) and energy dispersive spectroscopy (EDS), respectively. Optical transmission spectra were used to determine absorption coefficient and gap energy of the sample. Using photoacoustic spectroscopy, we report the activation energies of shallow and deep levels. Finally, we discuss the results obtained.

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Physical Sciences and Engineering Engineering Electrical and Electronic Engineering
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