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Self-Tracking Concentrator for Photovoltaics

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We present a novel solar concentrator architecture in which integrated microscale liquid optics provide passive solar tracking, eliminating the need for high-precision mechanical tracking. Optical efficiency as high as 72% and effective acceptance angle of 50° are demonstrated. The design can reduce the cost of concentrator photovoltaics and broaden its applicability.

© 2015 Optical Society of America

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