Synthesis and surface plasmon resonance of Au–ZnO Janus nanostructures

被引：1

作者：

周俊 ^{[1
,2
]}

张建烁 ^{[2
]}

冼国裕 ^{[2
]}

齐琦 ^{[2
]}

顾尚志 ^{[2
]}

申承民 ^{[2
]}

成昭华 ^{[2
]}

何声太 ^{[1
]}

杨海涛 ^{[2
]}

机构：

[1] School of Material Science and Engineering, Tianjin Polytechnic University

[2] Beijing National Laboratory for Condensed Matter Physics,Institute of Physics,Chinese Academy of Sciences

来源：

Chinese Physics B | 2019年 / 28卷 / 08期

基金：

中国国家自然科学基金;

关键词：

Au–ZnO; SERS; finite-difference time-domain; mechanism;

D O I：

暂无

中图分类号：

TN304 [材料];

学科分类号：

0805 ; 080501 ; 080502 ; 080903 ;

摘要：

Metal–semiconductor Janus nanostructures with asymmetry and directionality have recently aroused significant interest, both in fundamental light–matter interactions mechanism and in technological applications. Here we report the synthesis of different Au–ZnO Janus nanostructures via a facile one-pot colloid method. The growth mechanism is revealed by a series of designed synthesis experiments. The light absorption properties are determined by both the decrease of dipole oscillations of the free electrons and the plasmon-induced hot-electron transfer. Moreover, the finite-difference time-domain(FDTD) simulation method is used to elucidate the electric field distributions of these Janus nanostructures.

引用

页码：88 / 93

页数：6