Sanyo Pushes c-Si Solar Cell to 23% Conversion Efficiency

TOP STORY... May 26, 2009

Sanyo Electric Co. Ltd. has broken its own record for the highest energy conversion efficiency for a crystalline silicon solar cell in a practical size, beating its previous efficiency by almost a full percentage point. The cell is a hybrid cell composed of a single thin c-Si wafer sandwiched by ultrathin amorphous silicon (a-Si) layers. The structure minimizes defects within the p/n junction of the cell, producing higher-efficiency cells while producing more power even at higher temperatures.
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