Journal
OPTICS EXPRESS
Volume 19, Issue 14, Pages A824-A829Publisher
OPTICAL SOC AMER
DOI: 10.1364/OE.19.00A824
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Funding
- US Air Force Office of Scientific Research
- National Science Foundation
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Through femtosecond laser irradiation, we produce in this work a unique type of surface nanostructure on Al that have enhanced absorption at UV and visible but a relatively small emissivity in infrared. By integrating this laser-treated Al to a solar-driven thermoelectric generator, we show that the thermoelectric generator integrated with the femtosecond laser-treated Al foil generates a significantly higher power than the ones without. Our study shows that our technique can dramatically enhance the efficiency of solar-driven thermoelectric devices that may lead to a leap forward in solar energy harnessing. (C) 2011 Optical Society of America
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