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  • Nanowires could be solution for high- performance solar cells

    InGaAs: Solar cells (bottom) made with arrays of nanowires. Engineers can tune the performance by using nanowires of differing composition and thickness (top).

    InGaAs: Solar cells (bottom) made with arrays of nanowires. Engineers can tune the performance by using nanowires of differing composition and thickness (top).

    Graphic by Xiuling Li

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  • Editor's note: To contact Xiuling Li, call 217-265-6354; email xiuling@illinois.edu.
    The paper, “InxGa1-xAs Nanowires on Silicon: One-Dimensional Heterogeneous Epitaxy, Bandgap Engineering, and Photovoltaics,” is available online.