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Some Observations on the Cr 3+ Fluorescence in the Huntite Structure
Author(s) -
Blasse G.,
Bril A.
Publication year - 1967
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.19670200215
Subject(s) - ion , fluorescence , energy transfer , gallium , emission spectrum , atomic physics , spectral line , lattice (music) , crystal structure , absorption spectroscopy , chemistry , crystal field theory , absorption (acoustics) , crystallography , analytical chemistry (journal) , physics , optics , chromatography , acoustics , organic chemistry , astronomy
Absorption and emission spectra of Cr 3+ ‐activated huntites of the type Ln 3+ Me 3+ 3 B 4 O 12 (Ln = Y or Eu, Me = Al or Ga) are reported. For the aluminium and gallium compounds the crystal field splitting of the Cr 3+ ion is about equal, but the electrostatic interaction parameter B is different. The Cr 3+ emission of these compounds, unlike the emission of ruby, consists of lines and bands. In EuAl 3 B 4 O 12 :Cr, nonradiative energy transfer from Eu 3+ to Cr 3+ is observed; in YGa 3 B 4 O 12 : Cr nonradiative energy transfer occurs from the host lattice (probably GaO 6 groups) to Cr 3+ .