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Organic photovoltaic cells utilizing ultrathin sensitizing layer

Patent ·
OSTI ID:1027458
 [1];  [2];  [3]
  1. Ann Arbor, MI
  2. Piscataway, NJ
  3. Somers, NY
+ Show Author Affiliations
A photosensitive device includes a plurality of organic photoconductive materials disposed in a stack between a first electrode and a second electrode, including a first continuous layer of donor host material, a second continuous layer of acceptor host material, and at least one other organic photoconductive material disposed as a plurality of discontinuous islands between the first continuous layer and the second continuous layer. Each of these other photoconductive materials has an absorption spectra different from the donor host material and the acceptor host material. Preferably, each of the discontinuous islands consists essentially of a crystallite of the respective organic photoconductive material, and more preferably, the crystallites are nanocrystals.
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):
8,013,240
Application Number:
11/566,134
OSTI ID:
1027458
Country of Publication:
United States
Language:
English

References (20)

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Modeling photocurrent action spectra of photovoltaic devices based on organic thin films journal July 1999
The Limits to Organic Photovoltaic Cell Efficiency journal January 2005

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