期刊
JOURNAL OF LUMINESCENCE
卷 128, 期 10, 页码 1635-1640出版社
ELSEVIER
DOI: 10.1016/j.jlumin.2008.03.014
关键词
photoluminescence; silver nanoparticles; hybridization
类别
资金
- National Natural Science Foundation of China
- Natural Science Foundation of Beijing
Highly luminescent singles of Ag sol with gradual changes were detected when adjusting the granularity and concentration of particles. It can be deduced that these Ag sols, composed of a large amount of silver natioparticles and clusters, may have their surface energy bands alterable, which might be caused by the interactions between particles. A model that describes the shift of energy band is proposed, and it can be understood as the hybridization of elementary plasmons when interactions occur between particles. Besides, both hybridization and absorption-rescattering mechanisms were proposed to explain the changeable phenomena of photoluminescence with different concentrations. (C) 2008 Elsevier B.V. All rights reserved.
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