Growth of platelike and branched single-crystalline Si3N4 whiskers

    Authors

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

    Comments

    Authors: contact us about adding a copy of your work at STARS@ucf.edu

    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

    Share

    COinS