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Organic photosensitive devices

Patent ·
OSTI ID:1176494
A photoactive device is provided. The device includes a first electrode, a second electrode, and a photoactive region disposed between and electrically connected to the first and second electrodes. The photoactive region further includes an organic donor layer and an organic acceptor layer that form a donor-acceptor heterojunction. The mobility of holes in the organic donor region and the mobility of electrons in the organic acceptor region are different by a factor of at least 100, and more preferably a factor of at least 1000. At least one of the mobility of holes in the organic donor region and the mobility of electrons in the organic acceptor region is greater than 0.001 cm.sup.2/V-sec, and more preferably greater than 1 cm.sup.2/V-sec. The heterojunction may be of various types, including a planar heterojunction, a bulk heterojunction, a mixed heterojunction, and a hybrid planar-mixed heterojunction.
Research Organization:
The Trustees of Princeton University, Princeton, NJ (United States)
Sponsoring Organization:
USDOE
Assignee:
The Trustees of Princeton University (Princeton, NJ)
Patent Number(s):
8,357,849
Application Number:
10/949,375
OSTI ID:
1176494
Country of Publication:
United States
Language:
English

References (21)

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