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Panasonic Solar Cell Achieves World's Highest Energy Conversion Efficiency
Apr 10, 2014
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Panasonic Corp. achieved a conversion efficiency of 25.6% using its HIT solar cells (cell area: 143.7 square-cm), marking a major increase over the previous world record for crystalline silicon-based solar cells.

The previous record for the conversion efficiency of crystalline silicon-based solar cells of a practical size (100 square-cm and over) was 24.7%, also achieved by Panasonic, in February 2013.

The new record was the first to break through the 25% barrier for practical size cells.

This new record is also an improvement of 0.6 points over the previous record for small area crystalline silicon-based solar cells (cell area: 4 square-cm) of 25.0%.

The new record was made possible by further development of Panasonic's proprietary heterojunction technology to realize the high conversion efficiency and superior high temperature properties of the company's HIT solar cells, as well as adopting a back-contact solar cell structure, with the electrodes on the back of the solar cell, which allows the more efficient utilization of sunlight.

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