中国物理B ›› 2010, Vol. 19 ›› Issue (11): 113401-113402.doi: 10.1088/1674-1056/19/11/113401

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Intramolecular photoinduced electron-transfer in azobenzene-perylene diimide

易文辉1, 冯弈钰2, 封伟2, 冯文科3, 王树峰3, 龚旗煌3   

  1. (1)Department of Electronic Science and Technology, School of Information and Electronics Engineering, Xi'an Jiaotong University, Xi'an 710049, China; (2)School of Materials Science and Engineering, Tianjin University, Tianjin 300072, China; Tianjin Key Laboratory of Composite and Functional Materials, Tianjin 300072, China; (3)State Key Laboratory for Mesoscopic Physics, Department of Physics, Peking University, Beijing 100871, China
  • 收稿日期:2009-11-25 修回日期:2010-04-16 出版日期:2010-11-15 发布日期:2010-11-15
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant Nos. 10504001, 60878019, 10821062, 10934001, 60677002 and 10828407); the National Basic Research Program of China (Grant Nos. 2009CB930504, 2007CB307001, 2006CB921601 and 2006CB806007).

Intramolecular photoinduced electron-transfer in azobenzene-perylene diimide

Feng Wen-Ke(冯文科)a), Feng Yi-Yu(冯弈钰)b)c), Wang Shu-Feng(王树峰)a)†, Feng Wei(封伟)b)c), Yi Wen-Hui(易文辉)d), and Gong Qi-Huang(龚旗煌) a)‡   

  1. a State Key Laboratory for Mesoscopic Physics, Department of Physics, Peking University, Beijing 100871, China; b School of Materials Science and Engineering, Tianjin University, Tianjin 300072, China; c Tianjin Key Laboratory of Composite and Functional Materials, Tianjin 300072, China; d Department of Electronic Science and Technology, School of Information and Electronics Engineering, Xi'an Jiaotong University, Xi'an 710049, China
  • Received:2009-11-25 Revised:2010-04-16 Online:2010-11-15 Published:2010-11-15
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant Nos. 10504001, 60878019, 10821062, 10934001, 60677002 and 10828407); the National Basic Research Program of China (Grant Nos. 2009CB930504, 2007CB307001, 2006CB921601 and 2006CB806007).

摘要: This paper studies the intramolecular photoinduced electron-transfer (PET) of covalent bonded azobenzene-perylene diimide (AZO-PDI) in solvents by using steady-state and time-resolved fluorescence spectroscopy together with ultrafast transient absorption spectroscopic techniques. Fast fluorescence quenching is observed when AZO-PDI is excited at characteristic wavelengths of AZO and perylene moieties. Reductive electron-transfer with transfer rate faster than 1011 s-1 is found. This PET process is also consolidated by femtosecond transient absorption spectra.

Abstract: This paper studies the intramolecular photoinduced electron-transfer (PET) of covalent bonded azobenzene-perylene diimide (AZO-PDI) in solvents by using steady-state and time-resolved fluorescence spectroscopy together with ultrafast transient absorption spectroscopic techniques. Fast fluorescence quenching is observed when AZO-PDI is excited at characteristic wavelengths of AZO and perylene moieties. Reductive electron-transfer with transfer rate faster than 1011 s-1 is found. This PET process is also consolidated by femtosecond transient absorption spectra.

Key words: electron-transfer, femtosecond, AZO-PDI, transient absorption

中图分类号:  (Infrared, submillimeter wave, microwave and radiowave instruments and equipment)

  • 07.57.-c
33.15.Fm (Bond strengths, dissociation energies) 33.50.Dq (Fluorescence and phosphorescence spectra) 33.70.Jg (Line and band widths, shapes, and shifts)