Hybrid nanostructures of Au nanocrystals and ZnO nanorods: Layer-by-layer assembly and tunable blue-shift band gap emission

被引：22

作者：

Chen, Bingdi

Zhang, Hui

Du, Ning

Li, Dongsheng

Ma, Xiangyang

Yang, Deren ^{[1
]}

机构：

[1] Zhejiang Univ, State Key Lab Silicon Mat, Hangzhou 310027, Peoples R China

来源：

MATERIALS RESEARCH BULLETIN | 2009年 / 44卷 / 04期

关键词：

Nanostructures; Chemical synthesis; Optical properties; GOLD NANOPARTICLES; RAMAN-SCATTERING; NANOCOMPOSITES; ENHANCEMENT; TEMPERATURE; NANOWIRES; ARRAYS; DNA;

D O I：

10.1016/j.materresbull.2008.08.019

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A layer-by-layer assembly technique was developed to synthesize the hybrid nanostructures of Au nanocrystals with diameter of about 5nm and ZnO nanorods via the electrostatic interaction. In comparison with ZnO nanorods, the Au-ZnO hybrid nanostructures exhibited the broadened and red-shifted surface plasmon band, enhanced band gap emission, and suppressed defect emission due to the strong interfacial coupling between Au and ZnO. Moreover, the band gap emission of the Au-ZnO hybrid nanostructures is controllably blue-shifted with decreasing distance between the Au nanocrystals and ZnO nanorods tuned by the amount of the polyelectrolyte layers due to the exciton and plasmon interactions. (C) 2008 Elsevier Ltd. All rights reserved.

引用

收藏

页码：889 / 892

页数：4

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