Conductive Black Silicon Surface Made by Silver Nanonetwork Assisted Etching

Authors

  • Chuan Fei Guo,

    1. National Center for Nanoscience and Technology, China, No. 11 Beiyitiao Zhongguancun, Beijing 100190, China
    2. Department of Physics and TcSUH, University of Houston, Houston, TX 77204, USA
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  • Tianyi Sun,

    1. Department of Physics and TcSUH, University of Houston, Houston, TX 77204, USA
    2. Department of Physics, Boston College, Chestnut Hill, MA 02467, USA
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  • Yang Wang,

    1. Institute for Advanced Materials, Academy of Advanced Optoelectronics, South China Normal University, Guangzhou 510006, China
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  • Jinwei Gao,

    1. Institute for Advanced Materials, Academy of Advanced Optoelectronics, South China Normal University, Guangzhou 510006, China
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  • Qian Liu,

    Corresponding author
    1. National Center for Nanoscience and Technology, China, No. 11 Beiyitiao Zhongguancun, Beijing 100190, China
    • National Center for Nanoscience and Technology, China, No. 11 Beiyitiao Zhongguancun, Beijing 100190, China
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  • Krzysztof Kempa,

    Corresponding author
    1. Department of Physics, Boston College, Chestnut Hill, MA 02467, USA
    • Department of Physics, Boston College, Chestnut Hill, MA 02467, USA.
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  • Zhifeng Ren

    Corresponding author
    1. Department of Physics and TcSUH, University of Houston, Houston, TX 77204, USA
    • Department of Physics and TcSUH, University of Houston, Houston, TX 77204, USA
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Abstract

original image

Conductive black silicon surfaces (CBSSs) are fabricated by Ag network-assisted catalytic etching, with the Ag network buried in silicon for low reflectance. The CBSSs present a high light absorbance of 97% and good electrical conductivity of less than 10 Ω/□. The CBSSs might be used as anti-reflection-coating free light-harvesting devices.

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