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Hot Electron Transfer Solar Cells Show Promise

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Results of a study published in the Feb. 6 issue of Nature suggest the feasibility of photovoltaic cells based on a new device structure that captures energetic electrons generated by photon absorption in photoreceptive dyes and that transfers them through an ultrathin metal film into an inexpensive polycrystalline semiconductor. Although the initial devices, demonstrated by Eric W. McFarland and Jing Tang at the University of California, Santa Barbara, displayed an overall efficiency of less than 1 percent because of low dye coverage, their internal quantum efficiency of approximately 10...Read full article

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    Published: March 2003
    As We Go To PressBreaking Newsenergetic electronsenergyphotoreceptive dyes ultrathin metal filmphotovoltaic cellsPresstime Bulletin

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