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Solid state photosensitive devices which employ isolated photosynthetic complexes

United States Patent

7,592,539
September 22, 2009
View the Complete Patent at the US Patent & Trademark Office
Solid state photosensitive devices including photovoltaic devices are provided which comprise a first electrode and a second electrode in superposed relation; and at least one isolated Light Harvesting Complex (LHC) between the electrodes. Preferred photosensitive devices comprise an electron transport layer formed of a first photoconductive organic semiconductor material, adjacent to the LHC, disposed between the first electrode and the LHC; and a hole transport layer formed of a second photoconductive organic semiconductor material, adjacent to the LHC, disposed between the second electrode and the LHC. Solid state photosensitive devices of the present invention may comprise at least one additional layer of photoconductive organic semiconductor material disposed between the first electrode and the electron transport layer; and at least one additional layer of photoconductive organic semiconductor material, disposed between the second electrode and the hole transport layer. Methods of generating photocurrent are provided which comprise exposing a photovoltaic device of the present invention to light. Electronic devices are provided which comprise a solid state photosensitive device of the present invention.
Peumans; Peter (Palo Alto, CA), Forrest; Stephen R. (Princeton, NJ)
The Trustees of Princeton University (Princeton, NJ)
10/ 704,226
November 7, 2003
UNITED STATES GOVERNMENT RIGHTS This invention was made with U.S. Government support under Contract No. 341-6239 and Grant No. F49620-01-1-0559 awarded by the U.S. Air Force Office of Scientific Research. The government has certain rights in this invention. JOINT RESEARCH AGREEMENT The claimed invention was made by, on behalf of, and/or in connection with one or more of the following parties to a joint university-corporation research agreement: Princeton University, The University of Southern California, and Global Photonic Energy Corporation. The agreement was in effect on and before the date the claimed invention was made, and the claimed invention was made as a result of activities undertaken within the scope of the agreement.