Effects of CdCl<sub>2</sub> on the growth of CdTe on CdS films for solar cells by isothermal close-spaced vapour transport
P O Vaccaro; G Meyer; J Saura; P O Vaccaro; Centro Atomico Bariloche, Rio Negro, Argentina; G Meyer; Centro Atomico Bariloche, Rio Negro, Argentina; J Saura; Centro Atomico Bariloche, Rio Negro, Argentina
Журнал:
Journal of Physics D: Applied Physics
Дата:
1991-10-14
Аннотация:
CdS/CdTe solar cells were made by depositing CdTe films by an isothermal close-spaced vapour transport method on sintered CdS/glass substrates. The influence of amounts of CdCl<sub>2</sub> ranging from 0 wt.% to 8 wt.% in the CdTe source on the solar cells performance was studied. Increasing the CdCl<sub>2</sub> content enhances the CdTe grain size but degrades the spectral response and increases the reverse saturation current. An optimal CdCl<sub>2</sub> concentration of 1 wt.% was found for a growth temperature of 620 degrees C.
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