Title

Growth of platelike and branched single-crystalline Si3N4 whiskers

Authors

Authors

W. Y. Yang; Z. P. Xie; J. J. Li; H. Z. Miao; L. G. Zhang;L. N. An

Comments

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Abbreviated Journal Title

Solid State Commun.

Keywords

Si3N4 whiskers; crystal growth; crystal structure and symmetry; SILICON-NITRIDE; SNO2 NANOWIRES; NANORODS; NANOSTRUCTURES; PHOTOLUMINESCENCE; NANOCRYSTALS; DENDRITES; PRECURSOR; PYROLYSIS; NANOBELTS; Physics, Condensed Matter

Abstract

In this communication, we report for the first time the growth of platelike and branched Si3N4 whiskers via catalyst-assisted pyrolysis of polymeric precursors. The as-prepared whiskers are single crystalline with a uniform thickness and width. The thickness and width of the Si3N4 whiskers range from 200 to 300 nm and 800 to 1200 nm, respectively. The platelike alpha-Si3N4 whiskers grew along [010] direction, while the branches grew along [001] direction. A growth mechanism based on solid-liquid-gas-solid reaction/crystallization is proposed. The formation of platelike whiskers instead of cylindrical whiskers is attributed to an anisotropic growth at an early nucleation/growth stage. (C) 2004 Elsevier Ltd. All rights reserved.

Journal Title

Solid State Communications

Volume

132

Issue/Number

3-4

Publication Date

1-1-2004

Document Type

Article

Language

English

First Page

263

Last Page

268

WOS Identifier

WOS:000224187500022

ISSN

0038-1098

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