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首页> 中文期刊> 《光：科学与应用（英文版）》 >320-fold luminescence enhancement of Ru(dpp)3Cl2 dispersed on PMMA opal photonic crystals and highly improved oxygen sensing performance

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

         
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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.

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