Size-controlled synthesis of monodisperse gold nanooctahedrons and their surface-enhanced Raman scattering properties

被引：42

作者：

Kim, Dongheun

Heo, Jinhwa

Kim, Minjung

Lee, Young Wook

Han, Sang Woo ^{[1
]}

机构：

[1] Gyeongsang Natl Univ, Res Inst Nat Sci, Dept Chem, Jinju 660701, South Korea

来源：

CHEMICAL PHYSICS LETTERS | 2009年 / 468卷 / 4-6期

关键词：

SHAPE-CONTROLLED SYNTHESIS; HIGH-YIELD SYNTHESIS; METAL NANOSTRUCTURES; SILVER; NANOPARTICLES; NANOCRYSTALS; MONOLAYERS; OCTAHEDRA;

D O I：

10.1016/j.cplett.2008.12.028

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：

Nanocrystalline gold octahedrons were synthesized in an aqueous environment via the reduction of HAuCl4 by ascorbic acid with the addition of NaOH. Highly monodisperse octahedral particles with controlled sizes ranging from 20 to 40 nm were prepared in high-yield by varying the reaction temperature. The structural and optical properties of the synthesized gold nanoparticles were characterized by scanning electron microscopy, transmission electron microscopy, X-ray diffraction, and UV-vis spectroscopy. The prepared nanoparticles exhibited efficient surface-enhanced Raman scattering (SERS) properties, and their SERS activities were highly size-dependent. (C) 2008 Elsevier B. V. All rights reserved.

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页码：245 / 248

页数：4

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