Highly enhanced UV emission due to surface plasmon resonance in Ag-ZnO nanorods

被引：68
|
作者：
Mahanti, Moumita [1 ]
Basak, Durga [1 ]
机构：
[1] Indian Assoc Cultivat Sci, Dept Solid State Phys, Kolkata 700032, India
来源：
CHEMICAL PHYSICS LETTERS | 2012年 / 542卷
关键词：
THIN-FILMS; OPTICAL-PROPERTIES; GOLD NANORODS; PHOTOLUMINESCENCE; NANOPARTICLES; LUMINESCENCE; PARTICLES; AU; HETEROSTRUCTURES; NANOCRYSTALS;
D O I：
10.1016/j.cplett.2012.06.004
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：
A detailed study on the emission properties of ZnO nanorods/Ag nanoparticles for various concentrations of Ag has been presented. The photoluminescence (PL) spectra show that the near band edge (NBE) luminescence of ZnO is enhanced 10 times after Ag loading leading to an ultraviolet/visible emission ratio to 12.2 compared to a value of 1.2 for pristine ZnO nanorods. The enhancement in PL intensity is due to surface plasmon resonance coupling of the NBE emission between Ag and ZnO. We further confirm that morphology and/or surface modification do not contribute to this large increase in the band edge emission. (C) 2012 Elsevier B. V. All rights reserved.
引用
收藏
页码：110 / 116
页数：7
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