Studies on Intermolecular Energy Transfer and Relaxation Processes in Solid Rare Earth Complexes by Photoacoustic Spectroscopy
来源期刊：JOURNAL OF RARE EARTHS2001年第3期
论文作者：于锡娟 赵化章 宋慧宇 伍荣护 苏庆德
Abstract: 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.
于锡娟1，赵化章1，宋慧宇1，伍荣护1，苏庆德1
(1.Department of Chemistry, University of Science and Technology of China,)
Abstract: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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