Thin film CdTe solar cells-a review

High-efficiency thin-film CdTe solar cells can be fabricated using various methods ranging from the wet chemical techniques such as electrodeposition to the more conventional semiconductor processing methods such as vacuum evaporation. An examination of these different methods reveals that there are similarities between the postdeposition treatments that the CdTe films are subjected to, before they are used for device fabrication. Some of the cell fabrication techniques are reviewed, and the processing steps common to all methods are highlighted