title: Single-molecule interfacial electron transfer dynamics manipulated by an external electric current.
abstract: Interfacial electron transfer (IET) dynamics in a 1,1'-dioctadecyl-3,3,3',3'-tetramethylindodicarbocyanine (DiD) dye molecule/indium tin oxide (ITO) film system have been probed at the ensemble and single-molecule levels. By comparing the difference in the external electric current (EEC) dependence of the fluorescence intensities and lifetimes of the ensembles and single molecules, it is shown that the single-molecule probe can effectively demonstrate IET dynamics. The backward electron transfer and electron transfer from the ground state induce single-molecule fluorescence quenching when an EEC is applied to the DiD/ITO film system.
authors: State Key Laboratory of Quantum Optics and Quantum Optics Devices, College of Physics and Electronics Engineering, Shanxi University, Taiyuan, 030006, China.
authors: Guofeng
authors: G
authors: Zhang
authors: Liantuan
authors: L
authors: Xiao
authors: Ruiyun
authors: R
authors: Chen
authors: Yan
authors: Y
authors: Gao
authors: Xiaobo
authors: X
authors: Wang
authors: Suotang
authors: S
authors: Jia
mesh_terms: D002232:Carbocyanines / Q000737:chemistry; D004560:Electricity; D004579:Electron Transport; D005456:Fluorescent Dyes / Q000737:chemistry; D053768:Metal Nanoparticles / Q000737:chemistry; D019904:Polymethyl Methacrylate / Q000737:chemistry; D011789:Quantum Theory; D017971:Tin Compounds / Q000737:chemistry
chemical_list: D002232:Carbocyanines; D005456:Fluorescent Dyes; D017971:Tin Compounds; C109984:indium tin oxide; D019904:Polymethyl Methacrylate