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Title: Organic photovoltaic cells utilizing ultrathin sensitizing layer

Patent ·
OSTI ID:1019536

A photosensitive device includes a series of organic photoactive layers disposed between two electrodes. Each layer in the series is in direct contact with a next layer in the series. The series is arranged to form at least one donor-acceptor heterojunction, and includes a first organic photoactive layer comprising a first host material serving as a donor, a thin second organic photoactive layer comprising a second host material disposed between the first and a third organic photoactive layer, and the third organic photoactive layer comprising a third host material serving as an acceptor. The first, second, and third host materials are different. The thin second layer serves as an acceptor relative to the first layer or as a donor relative to the third layer.

Research Organization:
National Renewable Energy Laboratory (NREL), Golden, CO (United States)
Sponsoring Organization:
USDOE
Assignee:
The Trustees of Princeton University (Princeton, NJ)
Patent Number(s):
7,947,897
Application Number:
11/263,865
OSTI ID:
1019536
Country of Publication:
United States
Language:
English

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