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PHOTOVOLTAIC DEVICES

United States Patent Application

20120080067
A1
View the Complete Application at the US Patent & Trademark Office
A photovoltaic device including a composite down-converting layer disposed on the device, is presented. The composite down-converting layer includes down-converting material particles dispersed in a matrix. The size of the down-converting material particles is a function of a difference in respective refractive indices (.DELTA.n) of the down-converting material and the matrix such that: (i) for .DELTA.n less than about 0.05, the size of down-converting material particles is in a range from about 0.5 micron to about 10 microns, and (ii) for .DELTA.n at least about 0.05, the size of down-converting material particles is in a range from about 1 nanometer to about 500. A photovoltaic module having a plurality of such photovoltaic devices is also presented.
Tsakalakos, Loucas (Niskayuna, NY), Srivastava, Alok Mani (Niskayuna, NY), Korevaar, Bastiaan Arie (Schenectady, NY), Stern Gonzalez, Omar Ivan (Muenchen, DE), Xi, Yangang Andrew (Schenectady, NY)
GENERAL ELECTRIC COMPANY (SCHENECTADY NY)
12/ 894,926
September 30, 2010
STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH & DEVELOPMENT [0001] This invention was made with Government support under contract number DE-EE0000568 awarded by Department of Energy. The Government has certain rights in the invention.