Work

Porous silicon nanowires

Year: 2011

Type: review

Abstract: 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.

Source: Nanoscale

DOI: 10.1039/c1nr10668f

Authors: Yongquan Qu, Hailong Zhou, Xiangfeng Duan

Institutions: University of California, Los Angeles, California NanoSystems Institute

Language: English

Topic: Silicon Nanostructures and Photoluminescence

Subfield: Materials Chemistry

Field: Materials Science

Domain: Physical Sciences

Open Access status: green

Funder: National Institutes of Health

Award: Integrated Free-standing Nanoprobes for Neuroscience and Beyond