320-fold luminescence enhancement of [Ru(dpp)3]Cl2 dispersed on PMMA opal photonic crystals and highly improved oxygen sensing performance  

作　　者：Pingwei Zhou Donglei Zhou Li Tao Yongsheng Zhu Wen Xu Sai Xu Shaobo Cui Lin Xu Hongwei Song 

机构地区：[1]State Key Laboratory on Integrated Optoelectronics,College of Electronic Science and Engineering,Jilin University,Changchun 130012,China [2]College of Physics,Jilin University,Changchun 130012,China

出　　处：《Light(Science & Applications)》2014年第1期53-61,共9页光（科学与应用)（英文版）

基　　金：This work was supported by the Major State Basic Research Development Program of China(No.2014CB643506);the National Natural Science Foundation of China(Grant Nos.11374127,11304118,61204015,81201738,61177042 and 11174111);the Program for Chang Jiang Scholars and Innovative Research Teams in the University(No.IRT13018).

摘　　要：Ru complexes([Ru(dpp)3]Cl2)were spin coated on poly(methyl methacrylate)(PMMA)opal photonic crystals(PhCs),and a,320-fold luminescence enhancement was observed compared to that on glass,which is the largest luminescence enhancement of dye molecules by the modulation of three-dimensional(3D)PhCs reported until now.The enhancement mechanism was carefully examined and it was shown that the luminescence of[Ru(dpp)3]Cl2 depended on the molecule concentration and temperature.It can be concluded that the suppressed non-radiative relaxation among the molecules and the field enhancement both contribute significantly to the luminescence enhancement.The PMMA PhC/Ru complex composites were then tested for their intracellular oxygen sensing and cell imaging properties;these composites effectively improved the limit of detection(LOD)and the brightness of the cell images.

关 键 词：cell imaging fluorescence enhancement oxygen sensing photonic crystals 

分 类 号：TB3[一般工业技术—材料科学与工程]