Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1652634 | Materials Letters | 2007 | 4 Pages |
Abstract
Belt-shaped Si3N4 whiskers have been synthesized by a carbothermal reduction and nitridation method. The whiskers had an average width of 800 nm, width-to-thickness ratios of 4–6, and a length in the range of several tens of microns to hundreds of microns. Photoluminescence (PL) spectrum of the whiskers showed a strong blue emission peak at 410 nm, and PL lifetime measurement exhibited a rapid decay within a few nanoseconds. The growth of the whiskers was supposed to be dominated by a vapor–solid (VS) mechanism.
Related Topics
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Materials Science
Nanotechnology
Authors
Yajie Xu, Chuanbao Cao, Hongli Du, Jie Li, Hesun Zhu,