Kaneka Develops World's Highest-efficiency Crystalline Si PV Cell

2016/10/26 10:23
Shinichi Kato, Nikkei BP CleanTech Institute
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The solar cell with a conversion efficiency of 26.33%

New Energy and Industrial Technology Development Organization (NEDO) announced Sept 14, 2016, that it has realized the world's highest-efficiency (26.33%) crystalline silicon solar cell with a practical size (180cm2).

Kaneka Corp developed the cell by combining hetero junction and back contact technologies in NEDO's "Development of Technologies to Reduce Power Generation Cost of High-performance, High-reliability Solar Power Generation" project.

Specifically, Kaneka applied (1) its hetero junction technology using amorphous silicon, (2) technology to reduce the series resistance of electrode, (3) back contact technology that enables to efficiently use sunlight, etc.