Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1675882 | Thin Solid Films | 2007 | 4 Pages |
Abstract
In previous papers we have reported the improvement of the efficiency of CdS/CdTe solar cells by varying the thiourea/CdCl2 ratio (Rtc) in the chemical bath solution used for the deposition of the CdS layers. In this work, a more complete study concerning the physical properties of Chemical Bath Deposited (CBD) CdS layers studied by photoluminescence, X-ray diffraction and optical spectroscopy are correlated to the I–V characteristics under AM 1.5 sunlight and the spectral response of CdS/CdTe solar cells. It is confirmed that the optimum Rtc for the CBD CdS films is Rtc = 5, since in this case the best solar cells were obtained and these films show the better optical and structural characteristics.
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Authors
O. Vigil-Galán, A. Morales-Acevedo, F. Cruz-Gandarilla, M.G. Jiménez-Escamilla, J. Aguilar-Hernández, G. Contreras-Puente, J. Sastré-Hernández, E. Sánchez-Meza, M.L. Ramón-Garcia,