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Porous Silicon Nanowires

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Handbook of Porous Silicon

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Abstract

Porous silicon nanowires have gained increasing attention as a new form of silicon nanostructure with promising applications in bio-, optical-, and energy-related technologies. Progress on the synthesis of porous silicon nanowire is reviewed, with particular emphasis on the discussion about the formation mechanism of porous nanowire. In the synthesis, a top-down approach is adopted to etch silicon wafer into porous nanowire with adjustable pore size using a metal-assisted chemical etching (MACE) method. Effects of the choice of the wafer type and etchant species on nanowire morphology are evaluated. Specifically, different types of etchant solutions such as mixture of silver nitrite/hydrofluoric acid (AgNO3/HF) or hydrogen peroxide/hydrofluoric acid (H2O2/HF) will significantly affect the final morphology, which results in either porous nanowire or solid nanowire. A summary of the synthetic recipes is listed at the end of the chapter.

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Authors and Affiliations

  1. NSLS-II, Brookhaven National Laboratory, Upton, NY, 11973, USA

    Mingyuan Ge

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  1. Mingyuan Ge
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Correspondence to Mingyuan Ge .

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Editors and Affiliations

  1. School of Physics and Astronomy, University of Birmingham, Birmingham, Worcestershire, United Kingdom

    Leigh Canham

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Ge, M. (2018). Porous Silicon Nanowires. In: Canham, L. (eds) Handbook of Porous Silicon. Springer, Cham. https://doi.org/10.1007/978-3-319-71381-6_113

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