Imaging Science and Photochemistry ›› 2000, Vol. 18 ›› Issue (2): 174-178.DOI: 10.7517/j.issn.1674-0475.2000.02.174

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THE FLUORESCENCE LIFETIME OF TRICHROMOPHORIC RHODAMINE LASER DYES

HE Yuan-jun1, ZHANG Zhen-ping(CHANG Chen-Pin)2, SU Jian-hua1, TIAN He1   

  1. 1. Institute of Fine Chemicals, East China University of Science and Technology, Shanghai 200237, China;
    2. Department of Chemistry, Fu Jen University, 242 Taipei, China
  • Received:1999-09-02 Revised:2000-01-11 Online:2000-05-20 Published:2000-05-20

Abstract: The fluorescence spectra in various solvents for trichromophoric rhodamine laser dyes, in which naphthalimide chromophores were connected with rhodamine 6G by-CH2CH2-, have been investigated. The fluorescence lifetimes of these dyes have been measured by singlephoton counting technique. The intramolecular energy transfer and charge transfer between antenna naphthalimide moieties and rhodamine has been discussed.

Key words: fluorescence lifetime, triad dye, energy transfer

CLC Number: