high efficiency solar cells

Researchers sets New Record for Silicon-based Multi-junction Solar Cell with 30.2 Percent Efficiency

Researchers at the Fraunhofer Institute for Solar Energy Systems ISE together with the Austrian company EV Group (EVG) has developed a silicon-based multi-junction solar cell with two contacts and record efficiency of 30.2 % exceeding theoretical limit of silicon solar cells. To achieve this efficiency, researchers used a “direct wafer bonding” process to transfer a […]

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