Growth of platelike and branched single-crystalline Si3N4 whiskers
Abbreviated Journal Title
Solid State Commun.
Si3N4 whiskers; crystal growth; crystal structure and symmetry; SILICON-NITRIDE; SNO2 NANOWIRES; NANORODS; NANOSTRUCTURES; PHOTOLUMINESCENCE; NANOCRYSTALS; DENDRITES; PRECURSOR; PYROLYSIS; NANOBELTS; Physics, Condensed Matter
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  direction, while the branches grew along  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.
Solid State Communications
"Growth of platelike and branched single-crystalline Si3N4 whiskers" (2004). Faculty Bibliography 2000s. 4903.