Excimer Formation of Aryl Iodides Chemisorbed on Gold Nanoparticles for the Significant Enhancement of Photoluminescence
Excimer Formation of Aryl Iodides Chemisorbed on Gold Nanoparticles for the Significant Enhancement of Photoluminescence
复制标题
化学吸附在金纳米粒子上的芳基碘化物的准分子形成显着增强光致发光
DOI：
10.1021/acs.jpclett.9b03557
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发表时间：
2020
影响因子：
4.4
通讯作者：
H. Sakurai
中科院分区：
文献类型：
--
作者：
P. Maity;K. Sasai R. N. Dhital;H. Sakai T. Hasobe;H. Sakurai
研究了芳基碘化物在金纳米粒子上化学吸附的光致发光性能。在溶液中，一系列芳基碘化物化学吸附到聚n -乙烯基吡咯烷酮保护的金纳米粒子（Au:PVP）上，产生了高度增强的发光。动力学研究表明，光致发光源于Au:PVP上芳基碘化物的准分子形成，且该过程明显快于重原子的体系间交叉。
The photoluminescence properties of aryl iodides chemisorbed on gold nanoparticles were examined. Chemisorption of a series of aryl iodides onto poly(N-vinylpyrrolidone)-protected Au nanoparticles (Au:PVP) in solution resulted in highly enhanced luminescence. Kinetic studies revealed that the photoluminescence is derived from the excimer formation of aryl iodides on Au:PVP, and the process is significantly faster than intersystem crossing by the heavy atom.