Studies on Intermolecular Energy Transfer and Relaxation Processes in Solid Rare Earth Complexes by Photoacoustic Spectroscopy

稀土学报(英文版), 2001, 19(3): 181-186.

伍荣护 ^1, , 赵化章 ^2, , 于锡娟 ^3, , 宋慧宇 ^4, , 苏庆德 ^5,

1.Department of Chemistry, University of Science and Technology of China,

2.Department of Chemistry, University of Science and Technology of China,

3.Department of Chemistry, University of Science and Technology of China,

4.Department of Chemistry, University of Science and Technology of China,

5.Department of Chemistry, University of Science and Technology of China,

基金项目: 国家自然科学基金(29875026)

Studies on Intermolecular Energy Transfer and Relaxation Processes in Solid Rare Earth Complexes by Photoacoustic Spectroscopy

The photoacoustic spectra of Eu(benz)3*(phen)2 (benz: benzoate, phen: phenanthroline) and Eu0.8Ln0.2(benz)3*(phen)2 (Ln3+: La3+ or Nd3+) were reported. The intermolecular energy transfer processes were studied from the point of the nonradiative transitions. Combined with the fluorescence spectroscopy, photoacoustic spectroscopy reflects the variation of the luminescence efficiencies of solid samples. The luminescence efficiency increases when La3+ is introduced, but it decreases greatly when Nd3+ is added, which is due to the difference of intermolecular energy transfer processes. The models of intramolecular and intermolecular energy transfer and relaxation processes were established.

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Studies on Intermolecular Energy Transfer and Relaxation Processes in Solid Rare Earth Complexes by Photoacoustic Spectroscopy

参考文献