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SOLAR ENERGY SYSTEMS

United States Patent Application

20120024365
A1
View the Complete Application at the US Patent & Trademark Office
National Renewable Energy Laboratory - Visit the NREL Technology Transfer Website
A photovoltaic cell with enhanced transmissivity of infrared radiation. The photovoltaic cell includes a layer of photovoltaic material (403) having a front, light-receiving surface and a back surface. The photovoltaic cell further includes a first anti-reflective coating (ARC) layer (405) provided on (or making up) the front surface of the layer of the photovoltaic material (403) and a second ARC layer (405) provided on (or making up) the back surface of the layer of the photovoltaic material (403). The layer of photovoltaic material (403) may be a silicon substrate, and at least one of the ARC layers (405) may be formed as a black silicon region or layer in the silicon substrate (403). The photovoltaic cell may also include a front grid pattern (401) of electrical conductors (406) applied to the first ARC layer and a back grid pattern (401) of electrical conductors (406) applied to the second ARC layer.
Branz, Howard M. (Boulder, CO), Vandermeulen, Peter (Newburyport, MA)
ALLIANCE FOR SUSTAINABLE ENERGY, LLC (Golden CO)
12/ 844,212
July 27, 2010
CONTRACTUAL ORIGIN [0001] The United States Government has rights in this invention under Contract No. DE-AC36-08G028308 between the United States Department of Energy and the Alliance for Sustainable Energy, LLC, the Manager and Operator of the National Renewable Energy Laboratory.