Studies on the Luminescence Properties and Decay Dynamics of Eu(Ⅲ) Enhanced Fluorescence Systems in Micelle Solutions

Chem. J. Chinese Universities ›› 2001, Vol. 22 ›› Issue (11): 1856.

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Studies on the Luminescence Properties and Decay Dynamics of Eu(Ⅲ) Enhanced Fluorescence Systems in Micelle Solutions

SUN Zhao-Yong, AI Xi-Cheng, FENG Juan, ZHANG Qi-Yuan, ZHANG Xing-Kang

State Key Laboratory of Structural Chemistryf or Unstable & Stable Species, Institute of Chemistry, The Chinese Academy of Sciences, Molecular Science Center, Beijing 100080, China

Received:2000-06-06 Online:2001-11-24 Published:2001-11-24

Abstract

Abstract: The influence factors of luminescent properties of Eu ³⁺ in-different aqueous systems and the fluorescence enhancement_mechanism of Gd ³⁺ for Eu ³⁺ were studied by absorption and stable and transient fluorescence methods. The results of the fluorescence decay dynamics show that the first ligand(TTA), the second ligand(Phen), Gd ³⁺ and TX-100 can increase all the luminescence of Eu ³⁺. The lifetimes of 5-D-0 level of Eu ³⁺ in four systems are 980, 670, 400 and 260 μs, separately. Moreover, 5-D-1 level of Eu ³⁺ can transfer energy to 5-D-0 level.

Key words: Eu(Ⅲ), Stable and transient spectra, Fluorescence enhancement, Fluorescence lifetime, Energy transfer

CLC Number:

O644.1

TrendMD:

SUN Zhao-Yong, AI Xi-Cheng, FENG Juan, ZHANG Qi-Yuan, ZHANG Xing-Kang . Studies on the Luminescence Properties and Decay Dynamics of Eu(Ⅲ) Enhanced Fluorescence Systems in Micelle Solutions[J]. Chem. J. Chinese Universities, 2001, 22(11): 1856.

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Studies on the Luminescence Properties and Decay Dynamics of Eu(Ⅲ) Enhanced Fluorescence Systems in Micelle Solutions

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