Importance

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Abstract

The disclosed embodiments relate to the design of a system that converts sunlight into electricity. During operation, the system concentrates the sunlight onto a front surface of a selective absorber, wherein the selective absorber comprises a semiconductor material having a band gap capable of absorbing most spectral components of the sunlight (such as intrinsic silicon), and wherein the concentrated sunlight causes heat to build up in the selective absorber. Next, the system uses heat obtained from the selective absorber to drive a heat engine, which converts the heat into mechanical energy. Finally, the system converts the mechanical energy into electricity.

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First Claim