Chem. J. Chinese Universities

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Strong Two-photon Absorption and Electrochemical Behavior of Dibenzofuran-triphenylamine Dentritic Chromophores

ZHANG Wei-Zhou1, WANG Xiao-Mei1*, FANG Xiang-Yun2, JIANG Wan-Li3, ZHAO Jun-Fang2   

    1. Institute of Material Science and Engineering, Suzhou University, Suzhou 215021, China;
    2. Laboratory of Ultra-Fast Laser, Measurement and Test Center, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100080, China;
    3. State Key Laboratory of Crystal Materials, Shandong University, Jinan 250100, China
  • Received:2007-12-12 Revised:1900-01-01 Online:2008-08-10 Published:2008-08-10
  • Contact: WANG Xiao-Mei

Abstract: The motivation for the strong two-photon absorbing chromophore is based on the significantly potential applications such as three-dimensional fluorescence imaging, two-photon photodynamic therapy, optical data storage and TPE fluorescence microscopy. Thus, the relationship between molecular structure and strong TPA property is greatly valuable. Here, two-photon absorption(TPA) and electro-chemistry properties of three new dibenzofuran-based chromophores(named as OT-G1, OT-G1.5 and OT-G2) were investigated. Stronger two-photon fluorescence(TPF) and larger TPA cross-section were observed with the generation number increasing. It is interesting to find that the increasing of the HOMO energy level shows the contribution to enhancement of TPA cross-section.

Key words: Dibenzofuran-triphenylamine dentritic chromophore, Two-photon absorption, Two-photon fluorescence, HOMO energy level

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