Title

Asymmetric silicon nitride nanodendrites

Authors

Authors

W. Y. Yang; F. M. Gao; H. T. Wang; Z. P. Xie;L. A. An

Comments

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Abbreviated Journal Title

Cryst. Growth Des.

Keywords

OPTICAL-PROPERTIES; NANOBELTS; NANOWIRES; THIN; PHOTOLUMINESCENCE; MICROSTRUCTURE; ORGANIZATION; MORPHOLOGY; CONVERSION; NANORINGS; Chemistry, Multidisciplinary; Crystallography; Materials Science, ; Multidisciplinary

Abstract

We have demonstrated the growth of asymmetric ordered Si3N4 nanodendrites via the catalyst-assisted pyrolysis of a polymeric precursor. The growth of the unique structure is due to the usage of a co-catalyst composed of a Fe-Al mixture. First, Si3N4 stems grow at an early stage via a gas-solid process with Al being the catalyst. Fe is then selectively deposited on the negatively charged (010) surface of the Si3N4 stem to form catalytic droplets which promote the growth of the ordered nanowire branches. The novel nanostructures could be useful for the fabrication of nanodevices and nanocomposites. The principle demonstrated here is applicable for synthesizing ordered branched nanodendrites in other material systems.

Journal Title

Crystal Growth & Design

Volume

8

Issue/Number

8

Publication Date

1-1-2008

Document Type

Article

Language

English

First Page

2606

Last Page

2608

WOS Identifier

WOS:000258270900005

ISSN

1528-7483

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