Effect of Back-contact Copper Concentration
نویسنده
چکیده
CdTe solar cells were fabricated with five different concentrations of copper, including zero, used in backcontact formation. Room-temperature J-V curves showed progressive deterioration in fill factor with reduced copper. JSC and QE were similar for all Cu-levels. Capacitance measurement suggested enhanced intermixing at the back contact with copper present. Photocurrent mapping was much less uniform for reduced-Cu cells. Elevatedtemperature stress induced very little change in J-V when sufficient Cu was used in the contact.
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تاریخ انتشار 2002