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Engineering | School of Electrical, Computer and Energy Engineering

ASU engineers break solar cell record

ASU engineers break solar cell record

Arizona State University researchers continue to break solar cell efficiency records in an effort to harness the sun’s energy more economically as a renewable source for electricity.

Last year, Assistant Professor Zachary Holman and Assistant Research Professor Zhengshan “Jason” Yu in ASU’s Ira A. Fulton Schools of Engineering, set a world record of 23.6 percent efficiency for a tandem solar cell stacked with perovskite and silicon. The number was a few percentage points shy of the theoretical efficiency limit for silicon solar cells alone.

Now, the team improves upon the record by nearly two percentage points, to 25.4 percent, in a joint project with researchers at the University of Nebraska–Lincoln, predicting they’ll be nearing 30 percent tandem efficiency within two years.

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December 18, 2018