Organic Solar Cells Using Star Conductive Polymers

Award Information
Agency: Department of Defense
Branch: Air Force
Contract: F49620-03-C-0020
Agency Tracking Number: F013-0069
Amount: $500,000.00
Phase: Phase II
Program: STTR
Awards Year: 2003
Solicitation Year: N/A
Solicitation Topic Code: N/A
Solicitation Number: N/A
Small Business Information
111 Downey Street, Norwood, MA, 02062
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Fei Wang
 Senior Scientist
 (781) 769-9450
Business Contact
 David Rauh
Title: President
Phone: (781) 769-9450
Research Institution
 Brian Prindle
 Department of Chemistry
Gainesville, FL, 32611
 (352) 392-1582
 Nonprofit college or university
Continued research and development on anew class of organic photovoltaics is proposed based on star conducting polymers. These materials will provide superior processibility and transport properties that determine the ultimate efficiency of the devices.The star polymer architecture employs linear conjugated arms radiating from a centrosymmetric core, and therefore, unlike the linear arms alone, facilitate carrier transport in three dimensions. The materials have also been demonstrated to have improvedprocessibility and adhesion. Phase I demonstrated synthesis of new star polymers using methods developed at the University of Florida, as well as solar cells using both interpenetrating network and dye sensitized TiO2 (DSSC) structures, with broadbandsolar conversion efficiencies of the latter >2%. The Phase II program seeks to optimize three types of solar cells using these materials (interpenetrating network, nanorod composite, and DSSC), with an AM1 solar efficiency goal of >5% and scale-up to >100cm2 for technology transfer to Air Force terrestrial, drone and space-based systems. Polymer solar cells are extremely lightweight, with a projected ratio of >600W/kg (10%, AM1) and potentially very inexpensive (<$0.5/peak watt). Military applicationsinclude very lightweight space payloads and portable power for ground-based operations. Commercially, they would make a great impact in the ~$1 billion photovoltaic market.

* Information listed above is at the time of submission. *

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