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Recyclable organic solar cells on substrates comprising cellulose nanocrystals (CNC)

United States Patent

December 1, 2015
View the Complete Patent at the US Patent & Trademark Office
U.S. Department of Energy - Visit the Office of the Assistant General Counsel for Technology Transfer & Intellectual Property Website
Recyclable organic solar cells are disclosed herein. Systems and methods are further disclosed for producing, improving performance, and for recycling the solar cells. In certain example embodiments, the recyclable organic solar cells disclosed herein include: a first electrode; a second electrode; a photoactive layer disposed between the first electrode and the second electrode; an interlayer comprising a Lewis basic oligomer or polymer disposed between the photoactive layer and at least a portion of the first electrode or the second electrode; and a substrate disposed adjacent to the first electrode or the second electrode. The interlayer reduces the work function associated with the first or second electrode. In certain example embodiments, the substrate comprises cellulose nanocrystals that can be recycled. In certain example embodiments, one or more of the first electrode, the photoactive layer, and the second electrode may be applied by a film transfer lamination method.
Kippelen; Bernard (Decatur, GA), Fuentes-Hernandez; Canek (Atlanta, GA), Zhou; Yinhua (Atlanta, GA), Moon; Robert (Marietta, GA), Youngblood; Jeffrey P. (West Lafayette, IN)
Georgia Tech Research Corporation (Atlanta, GA), Purdue Research Foundation (West Lafayette, IN), The United States of America as Represented by the Secretary of Agriculture (Washington, DC)
14/ 221,369
March 21, 2014
STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH OR DEVELOPMENT This invention was made with Government support under the following Grant Numbers: DMR-0120967, awarded by the National Science Foundation; N00014-11-1-0313, awarded by the US Navy Office of Naval Research; N00014-04-1-0120, awarded by the US Navy; DE-SC0001084, awarded by the US Department of Energy; Grant No. FA9550-09-1-0418, awarded by the Air Force Office of Scientific Research; Grant No. 12-JV-11111122-098, awarded by the US Department of Agriculture-Forest Service; Grant No. 11-JV-11111129-118, awarded by USDA-Forest Service; and Grant No. FA9550-11-1-0162, awarded by the Air Force Office of Scientific Research. The Government has certain rights in the invention.