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Organic photosensitive cells having a reciprocal-carrier exciton blocking layer

Patent ·
OSTI ID:909592
 [1];  [1];  [2]
  1. Princeton, NJ
  2. Anaheim Hills, CA
+ Show Author Affiliations
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.sup.-7 cm.sup.2/V-sec or higher, where a HOMO of the blocking layer is higher than or equal to a HOMO of the acceptor-type material.
Research Organization:
The Trustees of Princeton University (Princeton, NJ); The University of Southern California (Los Angeles, CA)
Sponsoring Organization:
United States Department of Energy
Assignee:
The Trustees of Princeton University (Princeton, NJ); The University of Southern California (Los Angeles, CA)
Patent Number(s):
7,230,269
Application Number:
11/150,143
OSTI ID:
909592
Country of Publication:
United States
Language:
English

References (4)

Organic solar cell devices based on PVK/porphyrin system journal February 2001
Organic Double-Heterostructure Photovoltaic Cells Employing Thick Tris(acetylacetonato)ruthenium(III) Exciton-Blocking Layers journal November 2005
Very-high-efficiency double-heterostructure copper phthalocyanine/C60 photovoltaic cells journal July 2001
Organic solar cells protected by very thick naphthalene tetracarboxylic anhydride films journal December 2004

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36 MATERIALS SCIENCE