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Plasmonics to Yield Thinner, Cheaper Solar Cells

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STANFORD, Calif., Feb. 14, 2011 — A multidisciplinary team of Stanford engineers led by Mike McGehee, Yi Cui and Mark Brongersma, and joined by Michael Graetzel at the École Polytechnique Fédérale de Lausanne (EPFL) announced a new technology using plasmonics to more effectively trap light within thin solar cells to improve performance. Waves of energy "Plasmonics makes it much easier to improve the efficiency of solar cells," said McGehee, an associate professor of materials science and engineering at Stanford. McGehee is the director of CAMP — the Center for Advanced Molecular...Read full article

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    Published: February 2011
    Glossary
    nano
    An SI prefix meaning one billionth (10-9). Nano can also be used to indicate the study of atoms, molecules and other structures and particles on the nanometer scale. Nano-optics (also referred to as nanophotonics), for example, is the study of how light and light-matter interactions behave on the nanometer scale. See nanophotonics.
    plasmonics
    Plasmonics is a field of science and technology that focuses on the interaction between electromagnetic radiation and free electrons in a metal or semiconductor at the nanoscale. Specifically, plasmonics deals with the collective oscillations of these free electrons, known as surface plasmons, which can confine and manipulate light on the nanometer scale. Surface plasmons are formed when incident photons couple with the conduction electrons at the interface between a metal or semiconductor...
    AmericasBasic ScienceCaliforniaCenter for Advanced Molecular Photovoltaicsdense electrical wavesÉcole Polytechnique Fédérale de Lausanneenergygreen photonicsLight SourcesMark BrongersmaMichael GraetzelMike McGeheenanonanodomesnanoscale dimplesphotosensitive dyesplasmonic dye-sensitized solar cellplasmonicsResearch & Technologyscattering unabsorbed lightsolar cellssolar waffleStanford Universitythin-film solar cellstitaniaYi CuiLEDs

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