Studies on surface plasmon resonance and photoluminescence of silver nanoparticles

被引：353
|
作者：
Smith, S. L. [1 ]
Nissamudeen, K. M. [1 ]
Philip, Daizy [2 ]
Gopchandran, K. G. [1 ]
机构：
[1] Univ Kerala, Dept Optoelect, Thiruvananthapuram 695581, Kerala, India
[2] Mar Ivanios Coll, Dept Phys, Thiruvananthapuram 695015, Kerala, India
来源：
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY | 2008年 / 71卷 / 01期
关键词：
Ag nanoparticles; surface plasmon resonance; TEW photoluminescence;
D O I：
10.1016/j.saa.2007.12.002
中图分类号：
O433 [光谱学];
学科分类号：
0703 ; 070302 ;
摘要：
Silver nanoparticles of different sizes were prepared by citrate reduction and characterized by UV-vis absorbance spectra, TEM images and photoluminescence spectra. The morphology of the colloids obtained consists of a mixture of nanorods and spheres. The surface plasmon resonance (SPR) and photoemission properties of Ag nanoparticles are found to be sensitive to citrate concentration. A blue shift in SPR and an enhancement in photoluminescence intensity are observed with increase in citrate concentration. Effect of addition of KCl and variation of pH in photoluminescence was also studied. (C) 2007 Elsevier B.V. All rights reserved.
引用
收藏
页码：186 / 190
页数：5
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