TY - JOUR
T1 - Photoluminescence characteristics of CdS layers deposited in a chemical bath and their correlation to CdS/CdTe solar cell performance
AU - Mendoza-Pérez, R.
AU - Aguilar-Hernández, J.
AU - Sastre-Hernández, J.
AU - Ximello-Quiebras, N.
AU - Contreras-Puente, G.
AU - Santana-Rodríguez, G.
AU - Vigil-Galán, O.
AU - Moreno-García, E.
AU - Morales-Acevedo, A.
N1 - Funding Information:
This work was partially supported by CONACYT-México under Grant No. G27713A.
PY - 2006/6
Y1 - 2006/6
N2 - In this work, we study CdS films processed by chemical bath deposition (CBD) using different thiourea concentrations in the bath solution with post-thermal treatments using CdCl2. We study the effects of the thiourea concentration on the photovoltaic performance of the CdS/CdTe solar cells, by the analysis of the I-V curve, for S/Cd ratios in the CBD solution from 3 to 8. In this range of S/Cd ratios the CdS/CdTe solar cells show variations of the open circuit voltage (Voc), the short circuit current (Jsc) and the fill factor (FF). Other experimental data such as the optical transmittance and photoluminescence were obtained in order to correlate to the I-V characteristics of the solar cells. The best performance of CdS-CdTe solar cells made with CdS films obtained with a S/Cd ratio of 6 is explained in terms of the sulfur vacancies to sulfur interstitials ratio in the CBD-CdS layers.
AB - In this work, we study CdS films processed by chemical bath deposition (CBD) using different thiourea concentrations in the bath solution with post-thermal treatments using CdCl2. We study the effects of the thiourea concentration on the photovoltaic performance of the CdS/CdTe solar cells, by the analysis of the I-V curve, for S/Cd ratios in the CBD solution from 3 to 8. In this range of S/Cd ratios the CdS/CdTe solar cells show variations of the open circuit voltage (Voc), the short circuit current (Jsc) and the fill factor (FF). Other experimental data such as the optical transmittance and photoluminescence were obtained in order to correlate to the I-V characteristics of the solar cells. The best performance of CdS-CdTe solar cells made with CdS films obtained with a S/Cd ratio of 6 is explained in terms of the sulfur vacancies to sulfur interstitials ratio in the CBD-CdS layers.
KW - CdS
KW - CdTe solar cells
KW - Photoluminescence
UR - http://www.scopus.com/inward/record.url?scp=33744922688&partnerID=8YFLogxK
U2 - 10.1016/j.solener.2006.01.002
DO - 10.1016/j.solener.2006.01.002
M3 - Artículo
SN - 0038-092X
VL - 80
SP - 682
EP - 686
JO - Solar Energy
JF - Solar Energy
IS - 6
ER -