Journal
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
Volume 12, Issue 33, Pages 9933-9937Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c0cp00206b
Keywords
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Funding
- Research Grants Council of the Hong Kong S.A.R. [GRF 102607]
- National Science Foundation of China [10874253]
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The emission spectra of the tripositive lanthanide ion Eu3+ have often been employed to probe its environment in the solid state, and the intensity ratio of magnetic dipole (D-5(0) -> F-7(1)) and forced electric dipole (D-5(0) -> F-7(2)) transitions has been used to estimate the `` degree of asymmetry'' of a crystal site. From the site- selective, low temperature emission spectra of Eu3+ doped into a glass, a new empirical relation has been found between the width of spectral features and the relative intensity of the D-5(0) -> F-7(0) zero phonon line. In order to explain the observations from experiments with excitation at different wavelengths, a generic quantitative relation has been developed from basic theory and validated from our experimental results. This work gives a deeper insight and understanding of the spectral characteristics of Eu3+ electronic spectra in the visible region.
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