An organic photosensitive optoelectronic device, having an anode, a cathode, and an organic blocking layer between the anode and the cathode is described, wherein the blocking layer comprises a phenanthroline derivative, and at least partially blocks at least one of excitons, electrons, and holes.
UNITED STATES GOVERNMENT RIGHTS
This invention was made with U.S. Government support under Contract No. 339-6002 awarded by the U.S. Air Force Office of Scientific Research and under Contract No. 341-4141 awarded by U.S. Department of Energy, National Renewable Energy Laboratory. The government has certain rights in this invention.