Award-Winning Etching Process Cuts Solar Cell Costs (Revised) (Fact Sheet)

    Research output: NRELFact Sheet


    The NREL 'black silicon' nanocatalytic wet-chemical etch is an inexpensive, one-step method to minimize reflections from crystalline silicon solar cells. The technology enables high-efficiency solar cells without the use of expensive antireflection coatings.
    Original languageAmerican English
    Number of pages2
    StatePublished - 2011

    Bibliographical note

    Supercedes previous March 2011 version.

    NREL Publication Number

    • NREL/FS-6A42-50063


    • antireflection coatings
    • black silicon
    • chlorine
    • chloroauric acid
    • crystalline silicon (x-Si) (c-Si)
    • gold
    • hydrofluoric acid
    • hydrogen
    • hydrogen peroxide
    • monocrystalline
    • multicrystalline
    • nanoparticles
    • nanoscale pores
    • nanotechnology
    • null
    • photovoltaic manufacturing
    • R&D 100
    • solar cell processing
    • solar cells
    • wet-chemical etch


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