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USE OF INVERSE QUASI-EPITAXY TO MODIFY ORDER DURING POST-DEPOSITION PROCESSING OR ORGANIC PHOTOVOLTAICS

United States Patent Application

20150318505
A1
View the Complete Application at the US Patent & Trademark Office
Disclosed herein are methods for fabricating an organic photovoltaic device comprising depositing an amorphous organic layer and a crystalline organic layer over a first electrode, wherein the amorphous organic layer and the crystalline organic layer contact one another at an interface; annealing the amorphous organic layer and the crystalline organic layer for a time sufficient to induce at least partial crystallinity in the amorphous organic layer; and depositing a second electrode over the amorphous organic layer and the crystalline organic layer. In the methods and devices herein, the amorphous organic layer may comprise at least one material that undergoes inverse-quasi epitaxial (IQE) alignment to a material of the crystalline organic layer as a result of the annealing.
Forrest, Stephen R. (Ann Arbor, MI), Zimmerman, Jeramy D. (Golden, CO), Lassiter, Brian E. (San Francisco, CA), Xiao, Xin (Ann Arbor, MI)
The Regents of the University of Michigan (Ann Arbor MI)
14/ 646,136
November 22, 2013
STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH [0002] This invention was made with U.S. Government support under Contract Nos. DE-SC0000957 and DE-EE0005310 awarded by the Department of Energy. The government has certain rights in the invention.