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Issue 10, 2011
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Porous silicon nanowires

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In this mini-review, we summarize recent progress in the synthesis, properties and applications of a new type of one-dimensional nanostructures—single crystalline porous silicon nanowires. The growth of porous silicon nanowires starting from both p- and n-type Si wafers with a variety of dopant concentrations can be achieved through either one-step or two-step reactions. The mechanistic studies indicate the dopant concentration of Si wafers, oxidizer concentration, etching time and temperature can affect the morphology of the as-etched silicon nanowires. The porous silicon nanowires are both optically and electronically active and have been explored for potential applications in diverse areas including photocatalysis, lithium ion batteries, gas sensors and drug delivery.

Graphical abstract: Porous silicon nanowires

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Article information

23 Jun 2011
29 Jul 2011
First published
25 Aug 2011

Nanoscale, 2011,3, 4060-4068
Article type

Porous silicon nanowires

Y. Qu, H. Zhou and X. Duan, Nanoscale, 2011, 3, 4060
DOI: 10.1039/C1NR10668F

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