Ultra-Lightweight Photovoltaic Cells on Flexible Substrates for Energy Conversion Applications

Award Information
Agency:
Department of Defense
Branch
Air Force
Amount:
$99,997.00
Award Year:
2006
Program:
SBIR
Phase:
Phase I
Contract:
FA8501-06-M-0076
Award Id:
79175
Agency Tracking Number:
F061-353-0376
Solicitation Year:
n/a
Solicitation Topic Code:
n/a
Solicitation Number:
n/a
Small Business Information
6 Skyline Drive, Hawthorne, NY, 10532
Hubzone Owned:
N
Minority Owned:
N
Woman Owned:
N
Duns:
796359289
Principal Investigator:
Daniel Wright
Principal Investigator
(914) 345-2442
dwright@anvik.com
Business Contact:
Kanti Jain
President
(914) 345-2442
kjain@anvik.com
Research Institute:
n/a
Abstract
Reliable and efficient sources of energy are of critical importance for space exploration. Solar power has long been recognized as one of the most promising sources of energy for space missions since it represents one of the few renewable energy sources in space. Advances in amorphous silicon (a-Si) deposition and patterning have led to the development of ultra-light thin-film photovoltaic cells that can be rolled up for efficient storage. The main drawback of these devices is the low intrinsic mobility of a-Si, which leads to lower energy conversion efficiency. These drawbacks have thus far prevented thin-film photovoltaic cells from displacing the heavier and more rigid conventional solar cell devices that are based on single-crystal Silicon (c-Si). Standard methods for crystallizing a-Si require high temperatures that are incompatible with thin-film materials, which are often polymeric in nature. One of the most promising techniques for crystallizing silicon on flexible substrates is excimer laser crystallization, which involves using short pulses of ultraviolet emission from an excimer laser to locally heat a small area of an a-Si substrate. By scanning the laser beam in an appropriate manner over the entire substrate, large areas of single-crystal silicon can be formed. We propose to use our capabilities in excimer laser crystallization as well as our expertise in high-throughput lithography and direct batch photoablation to develop efficient, large-area, lightweight, thin-film photovoltaic devices.

* information listed above is at the time of submission.

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