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An Al-doped ZnO front contact was successfully used for the first time for the fabrication of high efficiency CdS/CdTe thin-film solar cells. The ZnO:AI films were deposited on aluminosilicate glass by RF sputtering from a ZnO:Al/sub 2/O/sub 3/ target. The ZnO:AI film has /spl sim/95% average transmission in the visible spectrum with /spl sim/3 ohm/square sheet resistance. The CdS and CdTe thin films...
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