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ASU Researchers Break Solar-cell Efficiency Record at 25.4 Percent
Renewable Energy World: Arizona State University researchers have set a new record for solar efficiency, 25.4 percent. Working with tandem photovoltaics, or stacking different materials in a solar cell, the ASU team has continued to improve solar efficiency and lower costs.
In 2017, professors Zachary Holman and Zhengshan “Jason” Yu and their team layered semi-transparent perovskite over silicon and set a world record for solar cell efficiency of 23.6 percent. Recently, the team added two chemicals to the perovskite layer and broke its own record with an efficiency rate of 25.4 percent.
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