Abstract
Porous silicon, derived from single-crystal silicon via a straightforward electrochemical or chemical etch, has a wide range of applications that benefit from its high surface area, quantum confinement effects and light emission, and other optical effects. The as-etched silicon is metastable in ambient air for short periods of time, but the hydrogen-terminated surface will oxidize, and thus requires careful consideration. Chemical functionalization of the surface can be used to stabilize the porous silicon, with respect to demanding chemically and biologically relevant environments, and can enable precise tailoring of properties to endow the material with particular characteristics, on demand. This updated review examines the surface chemistry of porous silicon that leads to silicon–carbon bonds on the surface, to enable the covalent binding of just about any organic molecule of interest. Recent advances in direct silicon–carbon bond formation-based chemistry are described, which include dehydrocoupling of organosilanes, polymer thermolysis, as well as incorporation of biomolecules (RNA, peptides) on porous silicon.
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Huck, L.A., Hu, M., Buriak, J.M. (2018). Silicon–Carbon Bond Formation on Porous Silicon. In: Canham, L. (eds) Handbook of Porous Silicon. Springer, Cham. https://doi.org/10.1007/978-3-319-71381-6_70
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DOI: https://doi.org/10.1007/978-3-319-71381-6_70
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