Citation: Mao Cai He, Yu Qi Li, Ya Xian Zhu, Yong Zhang. Metal nanoparticle-enhanced room temperature phosphorescence of diiodofluorescein on the filter paper substrate[J]. Chinese Chemical Letters, ;2010, 21(1): 109-112. doi: 10.1016/j.cclet.2009.08.008 shu

Metal nanoparticle-enhanced room temperature phosphorescence of diiodofluorescein on the filter paper substrate

a Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China;
b State Key Lab of Marine Environmental Science(Xiamen University), Environmental Science Research Center, Xiamen University, Xiamen 361005, China

Received Date: 7 May 2009

Fund Project: This work was supported by the National Science Foundation of China (No. 20777062).

Metal-enhanced room temperature phosphorescence of diiodofluorescein was first observed on filter paper surface. The phosphorescence intensity is 2.5-fold brighter from diiodofluorescein on silver nanoparticles-deposited filter paper as compared with an identical control sample without silver nanoparticles. Furthermore, enhanced absorption was also observed for the same system. Our findings suggest that both singlet and triplet states can couple to surface plasmons and enhance phosphorescence quantum yields at room temperature, as well as to increase the excitation rate of lumophores at room temperature.
- Silver nanoparticle,
- Enhancement,
- Diiodofluorescein,
- Room temperature phosphorescence
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