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Monday 28. September 2009 14:55 Age: 344 days
SANYO Develops Ultra-thin HIT Solar Cell with the World´s Highest-level Conversion Efficiency of 22.8%
Resource Saving and Half the Thickness of Previous Cells
SANYO Electric Co., Ltd. (SANYO) is pleased to announce the realization of a 22.8% cell energy conversion efficiency, for a research-level HIT solar cell*1. This comes close to the world’s best conversion efficiency of 23.0% in a practical size (100 cm2 or more) announced in May 2009. SANYO’s solar cell improvement was realized using a cell thickness of 98μm, which is less than half*2 the previous thickness.
Background
With crystalline silicon-type photovoltaic cells such as HIT solar cells, the most important issue for reducing the cost of photovoltaic systems is the achievement of both energy conversion efficiency and a thin silicon wafer, which is the energy generation layer.
