Active solid-state devices (e.g. – transistors – solid-state diode – Organic semiconductor material
Reexamination Certificate
2007-06-12
2007-06-12
Lee, Hsien-Ming (Department: 2823)
Active solid-state devices (e.g., transistors, solid-state diode
Organic semiconductor material
C438S082000, C438S099000, C313S504000, C428S690000
Reexamination Certificate
active
11150143
ABSTRACT:
A photosensitive cell includes an anode and a cathode; a donor-type organic material and an acceptor-type organic material forming a donor-acceptor junction connected between the anode and the cathode; and an exciton blocking layer connected between the acceptor-type organic material of the donor-acceptor junction and the cathode, the blocking layer consisting essentially of a material that has a hole mobility of at least 10−7cm2/V-sec or higher, where a HOMO of the blocking layer is higher than or equal to a HOMO of the acceptor-type material.
REFERENCES:
patent: 2002/0189666 (2002-12-01), Forrest et al.
patent: 2005/0061364 (2005-03-01), Peumans et al.
patent: WO 01/39276 (2001-05-01), None
Peumans et al., “Very-high-efficiency double-heterostructure copper phthalocyanine/C60photovoltaic cells”, Appl. Phys. Lett. 79(1): 126-128, Jul. 2, 2001.
Kim et al., “Organic solar cell devices based on PVK/porphyrin system”, Synthetic Metals 117: 289-291, 2001.
Suemori et al., “Organic solar cells protected by very thick naphthalene tetracarboxylic anhydride films”, Appl. Phys. Lett. 85(25): 6269-6271, Dec. 20, 2004.
Rand et al., “Organic double-heterostructure photovoltaic cells employing thick tris(acetylacetonato)ruthenium(III) exciton-blocking layers”, Advanced Materials 17: 2714-2718, 2005.
International Search Report dated Nov. 24, 2006, Application No. PCT/US2006/021374 filed Jun. 1, 2006.
Forrest Stephen R.
Rand Barry P.
Thompson Mark E.
Kenyon & Kenyon LLP
Lee Hsien-Ming
The Trustees of Princeton University
The University of Southern California
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