Article ID Journal Published Year Pages File Type
1652634 Materials Letters 2007 4 Pages PDF
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
Physical Sciences and Engineering Materials Science Nanotechnology
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