Architectures and criteria for the design of high efficiency organic photovoltaic cells
A method for fabricating an organic photovoltaic cell includes providing a first electrode; depositing a series of at least seven layers onto the first electrode, each layer consisting essentially of a different organic semiconductor material, the organic semiconductor material of at least an intermediate layer of the sequence being a photoconductive material; and depositing a second electrode onto the sequence of at least seven layers. One of the first electrode and the second electrode is an anode and the other is a cathode. The organic semiconductor materials of the series of at least seven layers are arranged to provide a sequence of decreasing lowest unoccupied molecular orbitals (LUMOs) and a sequence of decreasing highest occupied molecular orbitals (HOMOs) across the series from the anode to the cathode.
- Research Organization:
- National Renewable Energy Laboratory (NREL), Golden, CO (United States)
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- AC36-98G010337
- Assignee:
- The Trustees of Princeton University (Princeton, NJ)
- Patent Number(s):
- 8,993,881
- Application Number:
- 13/965,903
- OSTI ID:
- 1177028
- Resource Relation:
- Patent File Date: 2013 Aug 13
- Country of Publication:
- United States
- Language:
- English
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