Title :
High efficiency CdS/CdTe solar cells from solution-grown CdS films
Author :
Chu, T.L. ; Chu, S.S. ; Ferekides, C. ; Wu, C.Q. ; Britt, J. ; Wang, C.
Author_Institution :
Dept. of Electr. Eng., Univ. of South Florida, Tampa, FL, USA
Abstract :
Adherent thin films of CdS were deposited on glass and SnO2 :F/glass substrates from an aqueous solution, and the important process parameters were investigated. The deposited films show high optical transmission at sub-bandgap wavelengths and high photoconductivity ratios. Thin-film CdS/CdTe solar cells have been prepared by depositing p-CdTe films onto CdS-SnO2:F/glass substrates by close-spaced sublimation. Junction photovoltage spectroscopy has been used for the qualitative comparison of junction characteristics. Solar cells of 1 cm2 area with an AM 1.5 efficiency of higher than 13% are reported
Keywords :
II-VI semiconductors; cadmium compounds; crystal growth from melt; optical films; semiconductor thin films; solar cells; CdS-CdTe solar cells; junction photovoltage spectroscopy; optical transmission; photoconductivity ratios; sub-bandgap wavelengths; thin film semiconductors; Cadmium compounds; Glass; Heterojunctions; Optical films; Photovoltaic cells; Semiconductor films; Semiconductor thin films; Spraying; Sputtering; Substrates;
Conference_Titel :
Photovoltaic Specialists Conference, 1991., Conference Record of the Twenty Second IEEE
Conference_Location :
Las Vegas, NV
Print_ISBN :
0-87942-636-5
DOI :
10.1109/PVSC.1991.169349
