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TFB:TPDSi2 interfacial layer usable in organic photovoltaic cells

United States Patent

February 15, 2011
View the Complete Patent at the US Patent & Trademark Office
The present invention, in one aspect, relates to a solar cell. In one embodiment, the solar cell includes an anode; an active organic layer comprising an electron-donating organic material and an electron-accepting organic material; and an interfacial layer formed between the anode and active organic layer, where the interfacial layer comprises a hole-transporting polymer characterized with a hole-mobility higher than that of the electron-donating organic material in the active organic layer, and a small molecule that has a high hole-mobility and is capable of crosslinking on contact with air.
Marks; Iobin J. (Evanston, IL), Hains; Alexander W. (Evanston, IL)
Northwestern University (Evanston, IL)
12/ 046,983
March 12, 2008
STATEMENT AS TO RIGHTS UNDER FEDERALLY-SPONSORED RESEARCH The invention was made with government support under Contract No. DE-FG02-06ER46320 awarded by the Department of Energy of the United States. The government has certain rights to the invention.