Title

Synthesis Of Single-Crystalline Silicon Nitride Nanobelts Via Catalyst-Assisted Pyrolysis Of A Polysilazane

Abstract

Recently, one-dimensional nanostructures have attracted extensive attention since they are potentially important for both applications and fundamental research. In this paper, we report the synthesis of ultra-long single crystal Si3N4 nanobelts via catalyst-assisted pyrolysis of polymeric precursors. The obtained products contain both α- and β-Si3N4 nanobelts, which are 50-100 nm in thickness, 400-1000 nm in width, and a few hundreds of micrometers to several millimeters in length. Different from previous techniques for synthesizing one-dimensional structures, the current nanobelts are synthesized through confined crystallization of an amorphous phase. A solid-liquid-gas-solid reaction/crystallization growth mechanism is proposed. The formation of nanobelts instead of nanowires is attributed to the anisotropy growth at an earlier stage.

Publication Date

1-1-2005

Publication Title

Journal of the American Ceramic Society

Volume

88

Issue

2

Number of Pages

466-469

Document Type

Article

Personal Identifier

scopus

Socpus ID

27644598969 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/27644598969

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