In situ templating of PbS nanorods in reverse hexagonal liquid crystal

被引:13
作者
Huang, NM [1 ]
Shahidan, R
Khiew, PS
Peter, L
Kan, CS
机构
[1] Univ Kebangsaan Malaysia, Fac Sci & Technol, Sch Appl Phys, Nucl Sci Program, Bangi 43600, Selangor, Malaysia
[2] Inst Biophys, Graz, Austria
关键词
chalcogenides; liquid crystal; nanostructures;
D O I
10.1016/j.colsurfa.2004.08.036
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
We report the in situ templating of lead sulfides (PbS) with mean diameter of 5.7 +/- 1.0 nm in the reverse hexagonal phase liquid crystal using lead nitrate and thioacetamide as the reactants. The texture of the reverse hexagonal phase for before and after PbS growth does not varies as observed under polarizing microscope indicating direct templating of PbS in hexagonal liquid crystalline phase. This result is consistent with measurement using small-angle X-ray scattering (SAXS). X-ray photoelectron spectroscopy (XPS) has been carried out to confirm the formation of PbS and energy filter transmission electron microscopy (EFTEM) observations show the size and shape of the PbS particles. The templated PbS nanorods show blue shift compare to the bulk material when characterized using UV-vis-NIR spectroscopy. (C) 2004 Elsevier B.V. All rights reserved.
引用
收藏
页码:55 / 60
页数:6
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