Growth of Gold Nanorods and Their Interaction with Ferric Chloride

被引：3
|
作者：
Han Linhuan [1 ]
Li Kaifeng [1 ]
Chen Yanwei [1 ]
机构：
[1] Northeast Normal Univ, Sch Phys, Minist Educ, Key Lab UV Emitting Mat & Technol, Changchun 130024, Peoples R China
来源：
CHEMICAL JOURNAL OF CHINESE UNIVERSITIES-CHINESE | 2017年 / 38卷 / 05期
基金：
中国国家自然科学基金;
关键词：
Gold nanorods; Ferric chloride; Etching; Surface plasmon resonance; SURFACE-PLASMON RESONANCE; MODIFIED AU NANORODS; SINGLE-PARTICLE; NANOPARTICLES; SHELL; SERS; AG; NANOCRYSTALS; ENHANCEMENT; MECHANISM;
D O I：
10.7503/cjcu20170061
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Gold nanorods( AuNRs ) with predetermined aspect ratios were obtained by the ferric chloride ( FeCl3 ) selective etching method. Compared with the seed growth method, the FeCl3 selective etching method is simpler and faster. The etching reaction takes place preferentially at the tip of gold nanorods due to the higher reaction activity and the less surface passivation at the tips of the gold nanorod. By controlling the reaction time and the concentration of the etchant, the aspect ratio of the gold nanorods can be precisely controlled. The experimental results show that the reaction rate increased by increasing the concentrations of the etchant and the halide ion and the reaction temperature. The mechanism of metal ion etching was also disscussed.
引用
收藏
页码：706 / 712
页数：7
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