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RESEARCHNovember 7, 2008Solar cells go microTap chipmaking techniques to make solar cells and you've got cells that are small enough to power tiny electronic devices.A prototype 2.2-square-centimeter array of 20, 1-square-millimeter polymer solar cells produces 7.8 volts, which is enough to provide half the power for a chemical sensor. The photolithography technique has the potential to produce cells as small as one tenth of a millimeter on a side, which is a little wider than a human hair. The micro solar cells could be used to power small electronic devices like chemical and biological sensors, and labs-on-a-chip. Research paper: Fabrication of Organic Solar Array for Applications in Microelectromechanical Systems Journal of Renewable and Sustainable Energy, published online November 6, 2008 Researchers' homepage: Nanostructure Optoelectronic Lab, University of South Florida Related stories and briefs: Process prints flexible silicon solar cells -- related research Back to ERN November 17/24, 2008 |
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