Disclosed herein are organic photosensitive optoelectronic devices comprising at least one hybrid planar-graded heterojunction. In particular, organic photosensitive optoelectronic devices are disclosed having two electrodes (110), (150) in superposed relation, a graded heterojunction layer (130) located between the two electrodes, and at least one photoactive layer (120), (140) adjacent to and interfacing with the graded heterojunction layer.
STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH
 This invention was made with U.S. Government support under Contract Nos. DE-SC0000957 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.