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Title: Efficient solar cells using all-organic nanocrystalline networks

Patent ·
OSTI ID:1824061
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An optoelectronic device and a method of fabricating a photosensitive optoelectronic device includes depositing a first organic semiconductor material on a first electrode to form a continuous first layer; depositing a layer of a second organic semiconductor material on the first layer to form a discontinuous second layer, portions of the first layer remaining exposed; and depositing the first organic semiconductor material on the second layer to form a discontinuous third layer, portions of at least the second layer remaining exposed. The depositing of the first and second organic semiconductor materials are alternated a number of times until a final layer of the second organic material is added to form a continuous layer. A second electrode is deposited over this final layer. One of the first electrode and the second electrode is transparent, and the first organic semiconductor material is one or more donor-type materials or one or more acceptor-type materials relative to second organic semiconductor material, which is one or more materials of the other material type.

Research Organization:
Univ. of Michigan, Ann Arbor, MI (United States); National Renewable Energy Laboratory (NREL), Golden, CO (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
AC36-99GO10337; XAT 5-33636-03
Assignee:
The Regents of the University of Michigan (Ann Arbor, MI)
Patent Number(s):
11,031,567
Application Number:
11/880,210
OSTI ID:
1824061
Resource Relation:
Patent File Date: 07/19/2007
Country of Publication:
United States
Language:
English

References (19)

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Aperiodic dielectric multilayer stack patent-application December 2005
Stacked organic photosensitive devices patent March 2007
Solar cells using fullerenes patent June 2003
Organic photovoltaic devices patent December 2003
Organic photosensitive optoelectronic devices with transparent electrodes patent March 2002
Aperiodic dielectric multilayer stack patent March 2007
Method of fabricating an optoelectronic device having a bulk heterojunction patent-application October 2005
Photovoltaic device with optical concentrator and method of making the same patent August 2002
Highly efficient multiple reflection photosensitive optoelectronic device with optical concentrator patent December 2001
Solar cells patent-application March 2005
High efficiency organic photovoltaic cells employing hybridized mixed-planar heterojunctions patent-application October 2005
Stacked organic photosensitive devices patent-application February 2006
Organic photosensitive optoelectronic devices with transparent electrodes patent-application August 2002
Organic photosensitive devices patent-application February 2006
Stacked organic photosensitive devices patent-application February 2006
Multilayer Organic Photodetectors with Improved Performance patent-application May 2005

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