物理化学学报 >> 1994, Vol. 10 >> Issue (03): 193-196.doi: 10.3866/PKU.WHXB19940301

通讯    下一篇

天线若丹明染料分子内能量与电荷传递的研究

田禾   

  1. 华东理工大学精细化工材料研究所,上海 200237
  • 收稿日期:1993-11-01 修回日期:1993-12-27 发布日期:1994-03-15
  • 通讯作者: 田禾

Studies on Intramolecular Energy Transfer and Charge Transfer in Trichromophoric Antenna Rhodamine Dyes

Tian He   

  1. Research Institute of Fine Chemicals, East China University of Science and Technology, Shanghai 200237
  • Received:1993-11-01 Revised:1993-12-27 Published:1994-03-15
  • Contact: Tian He

关键词: 激光染料, 能量传递, 分子内电荷转移, 三重态寿命, 三重态-三重态吸收

Abstract:

The triplet lifetime of some trichromophoric antenna rhodamine dyes have been measured by nanosecond laser flash photolysis and phosphorescence decay method.The intramolecular triplet energy transfer and intramolecular charge transfer in these dyes have been discussed. These processes may affect the lasing efficiency as well as the emission wavelength of the antenna dyes.The experimental results support the existence folded conformation in the antenna rhodamine dyes linked with CH_2-CH_2.

Key words: Laser dyes, Energy transfer, Intramolecular charge transfer, Triplettriplet absorption, Triplet lifetime