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Issue 12, 2001
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Abstract

Thermal decomposition reactions of the Lewis acid–base adducts t-Bu3Ga–Sb(t-Bu)31 and t-Bu3Ga–Sb(i-Pr)32 were investigated at different temperatures. Both adducts lead to the formation of crystalline GaSb particles in the temperature range of 275–450 °C, proving their potential to serve as single source precursors for the preparation of GaSb. In contrast to 1, 2 tends to form crystalline, highly-oriented GaSb whiskers under the pyrolysis conditions. Detailed temperature-dependent studies clearly reveal the strong influence of the decomposition conditions on the whisker growth. While at temperatures between 275 and 375 °C single GaSb needles preferably were formed, higher temperatures (400–450 °C) lead to the formation of crystalline GaSb dendrites. As-prepared carbon-free, cubic GaSb whiskers were characterized in detail by SEM, TEM, electron diffraction, EDX and EEL spectroscopy.

Graphical abstract: Growth of GaSb whiskers by thermal decomposition of a single source precursor

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Article information


Submitted
30 May 2001
Accepted
02 Aug 2001
First published
09 Oct 2001

J. Mater. Chem., 2001,11, 3241-3248
Article type
Paper

Growth of GaSb whiskers by thermal decomposition of a single source precursor

A. Kuczkowski, S. Schulz and W. Assenmacher, J. Mater. Chem., 2001, 11, 3241
DOI: 10.1039/B104670P

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