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Gallium arsenide nanoparticles: synthesis and characterisation

被引：53
作者：
Malik, MA
O'Brien, P
Norager, S
Smith, J
机构：
[1] Univ Manchester, Manchester Mat Sci Ctr, Manchester M13 9PL, Lancs, England
[2] Univ Manchester, Dept Chem, Manchester M13 9PL, Lancs, England
[3] Heriot Watt Univ, Div Phys, Sch Engn & Phys Sci, Edinburgh EH14 4AS, Midlothian, Scotland
来源：
JOURNAL OF MATERIALS CHEMISTRY | 2003年 / 13卷 / 10期
关键词：
D O I：
10.1039/b305860n
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Gallium arsenide nanoparticles have been prepared from GaCl3 and As(NMe2)(3) in 4-ethylpyridine. UV spectra and emission luminescence show strong peaks for samples isolated after short reaction times. Time resolved photoluminescence (TRPL) was carried out using time-correlated single photon counting (TCSPC). The emission observed was confirmed as mainly arising from GaAs dots. Powder XRD data confirm the formation of the cubic GaAs phase. TEM imaging showed monodispersed nanoparticles with sizes ranging from 2 nm (for early aliquots) to 6 nm for later samples after the injection of additional precursor.
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收藏
页码：2591 / 2595
页数：5
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