There have been more than a few solar power efficiency records set in the past few months, let alone years. What makes IBM, DelSolar, Solar Frontier and Tokyo Ohka Kogyo think they can just waltz in and claim a record of their own. By using more commonplace elements in the periodic table, that's how. The partnership's new photovoltaic cell based on copper, zinc and tin (CZTS for short) can convert light rays to electric power with a 11.1 percent efficiency rate - still nothing to upset traditional silicon power, but a large 10 percent more efficient than anything else in the class.
Engadget , IBM alliance sets efficiency record for solar power cells using common materials, IBM alliance sets efficiency record for solar power cells using common materials
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