In situ electrochemically tuned photoluminescence of [Ru(bpy)2(dppz)]2+ aggregates with single-walled carbon nanotubes and DNA monitored by guanine oxidation |
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| Authors: | Jiang-Yang Shao Ting Sun Qing-Yu Guo Hong Li Sheng Lan |
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| Affiliation: | (1) Key Lab of Technology on Electrochemical Energy Storage and Power Generation in Guangdong Universities, Guangzhou, Guangdong, People’s Republic of China;(2) School of Chemistry and Environment, South China Normal University, Guangzhou, 510006, People’s Republic of China;(3) Lab of Photonic Information Technology, School for Information and Optoelectronic Science and Technology, South China Normal University, Guangzhou, 510006, People’s Republic of China; |
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| Abstract: | A classical ruthenium(II) complex [Ru(bpy)2(dppz)]2+ (bpy = 2,2′-bipyridine, dppz = dipyrido[3,2-a:2′,3′-c]phenazine) was combined with guanine and single-walled carbon nanotubes dispersed with DNA (SWCNTs-DNA) to prepare electrochemically tunable photoluminescence materials. These multi-component aggregates were found to show enhanced luminescence by the electrocatalytic oxidation of guanine under the excitation of a continuous wave green laser at a constant anodic potential via an electrode-solution interface. The results from this study provide a significant foundation for better understanding of DNA-based luminescent devices. |
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