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STABLE ORGANIC PHOTOSENSITIVE DEVICES WITH EXCITON-BLOCKING CHARGE CARRIER FILTERS UTILIZING HIGH GLASS TRANSITION TEMPERATURE MATERIALS

United States Patent Application

20160020418
A1
View the Complete Application at the US Patent & Trademark Office
Disclosed herein are stable organic photosensitive devices including at least one exciton-blocking charge carrier filter. The filters comprise a mixture of at least one wide energy gap material having a sufficiently high glass transition temperature, e.g., higher than the temperature or temperature range at which the device typically operates, higher than a highest operating temperature of the device, higher than a threshold temperature value, etc. and at least one electron or hole conducting material. As described herein, the novel filters simultaneously block excitons and conduct the desired charge carrier (electrons or holes).
Forrest, Stephen R. (Ann Arbor, MI), Burlingame, Quinn (Ann Arbor, MI), Xiao, Xin (Ann Arbor, MI), Bergemann, Kevie (Ann Arbor, MI), Panda, Anurag (Ann Arbor, MI), Zimmerman, Jeramy D. (Golden, CO), Lassiter, Brian E. (San Francisco, CA), Thompson, Mark E. (Anaheim, CA), Bartynski, Andrew N. (Los Angeles, CA), Trinh, Cong (San Jose, CA)
The Regents of the University of Michigan, University of Southern California
14/ 803,643
July 20, 2015
STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH [0002] This invention was made with U.S. Government support under Contract Nos. DE-SC0000957, DE-SC0001013, and DE-EE0005310 awarded by the U.S. Department of Energy, and under FA9550-10-1-0339 awarded by the Air Force Office of Scientific Research. The government has certain rights in the invention.