Preparation of Au@SiO2 Core-Shell Nanoparticles: Controlling the Optical Properties

被引：0

作者：

Tan En-zhong ^{[1
,2
]}

Yin Peng-gang ^{[1
]}

Huang Wei-feng ^{[1
]}

Yu Ge ^{[2
]}

Yu Chun-na ^{[2
]}

机构：

[1] Beihang Univ, Sch Chem & Environm, Key Lab Bioinspired Smart Interfacial Sci & Techn, Minist Educ, Beijing 100191, Peoples R China

[2] Beijing Inst Technol Petrochem, Dept Math & Phys, Beijing 102617, Peoples R China

来源：

SPECTROSCOPY AND SPECTRAL ANALYSIS | 2012年 / 32卷 / 12期

关键词：

Au@SiO2; Core-shell nanostructure; Surface-enhanced Raman spectroscopy(SERS); Etching; ENHANCED RAMAN-SCATTERING; SPECTROSCOPIC TAGS; CANCER; SERS; PARTICLES;

D O I：

10.3964/j.issn.1000-0593(2012)12-3267-04

中图分类号：

O433 [光谱学];

学科分类号：

0703 ; 070302 ;

摘要：

The authros developed a new approach to preparing the Au@SiO2 core-shell nanostructure. The morphology and stability of the composite were characterized by the UV-Vis absorption spectroscopy and transmission electron microscopy (TEM) methods. The stable SERS spectra were obtained from the PMBA-functionalized Au@SiO2 composite. In addition, the authros succeeded in adjusting the thickness of SiO2 layer by controlling the precursor consumption. The stability of Au@SiO2 in basic solution was studied and the results showed that the SiO2 shell was facile to be etched. The present work may provide a reference and gist for research on the preparation, storage and application of Au@SiO2.

引用

页码：3267 / 3270

页数：4

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