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Light trapping architecture for photovoltaic and photodector applications

United States Patent

August 9, 2016
View the Complete Patent at the US Patent & Trademark Office
There is disclosed photovoltaic device structures which trap admitted light and recycle it through the contained photosensitive materials to maximize photoabsorption. For example, there is disclosed a photosensitive optoelectronic device comprising: a first reflective layer comprising a thermoplastic resin; a second reflective layer substantially parallel to the first reflective layer; a first transparent electrode layer on at least one of the first and second reflective layer; and a photosensitive region adjacent to the first electrode, wherein the first transparent electrode layer is substantially parallel to the first reflective layer and adjacent to the photosensitive region, and wherein the device has an exterior face transverse to the planes of the reflective layers where the exterior face has an aperture for admission of incident radiation to the interior of the device.
Forrest; Stephen R. (Ann Arbor, MI), Lunt; Richard R. (Okemos, MI), Slootsky; Michael (Ann Arbor, MI)
13/ 099,850
May 3, 2011
STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH This invention was made with U.S. Government support under Contract No. FA9550-07-1-0364 awarded by the Air Force Office of Scientific Research and DE-FG36-08G018022 awarded by the Department of Energy. The government has certain rights in this invention.