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NREL Demonstrates 45.7% Efficiency for concentrator solar cell.

2014-12-22 14:31:03| Industrial Newsroom - All News for Today

Regarding its 4-junction inverted metamorphic (4J IMM) solar cell, NREL announced demonstration of 45.7% conversion efficiency at 234 suns concentration. Multijunction cell is designed for operation in concentrator photovoltaic (CPV) systems where it is possible to receive 1,000+ suns of concentrated sunlight. Efficacy is enabled due to effective control and confinement of dislocations, broadband 4-layer AR coating, metamorphic tunnel junction interconnect, and GaInP top cell performance.

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