Fluorescence Enhancement / Quenching of Pyrromethene Laser Dyes Hybridized with Gold Nanoparticles

被引：0
作者：
Sakr, Mahmoud E. [1 ]
Abou Kana, Maram T. H. [1 ]
机构：
[1] Cairo Univ, Natl Inst Laser Enhanced Sci, Giza 12613, Egypt
来源：
ARAB JOURNAL OF NUCLEAR SCIENCES AND APPLICATIONS | 2014年 / 47卷 / 01期
关键词：
fluorescence enhancement/quenching; PM laser dyes; Mie theory; optical properties; fluorescence lifetime;
D O I：
暂无
中图分类号：
TL [原子能技术]; O571 [原子核物理学];
学科分类号：
0827 ; 082701 ;
摘要：
Enhancements as well as quenching fluorescence intensities of Pyrromethene laser dyes (PM) complexed by gold nanoparticles (Au NPs) were investigated. A pronounced fluorescence quenching was expected experimentally depending on the size of prepared Au NPs. Mie theory explained this quenching behavior by calculating the scattering and absorbing efficiency of prepared Au NPs depending on its prepared size. [50% Au NPs: 1x10-4M PM] complex has the optimum concentration which showed the best fluorescence enhancement of PM dyes. Concurrent, the optimum complex concentration showed the lowest fluorescence lifetime of both PM dyes.
引用
收藏
页码：86 / 98
页数：13
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