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On the Luminescence of KCl:Pb and KBr:Pb Crystals
Author(s) -
Mǎrculescu L.,
Ghiţǎ C.
Publication year - 1976
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.2220750140
Subject(s) - impurity , excited state , luminescence , analytical chemistry (journal) , emission spectrum , absorption (acoustics) , absorption spectroscopy , chemistry , spectral line , energy transfer , materials science , atomic physics , optoelectronics , optics , molecular physics , physics , organic chemistry , chromatography , astronomy , composite material
The emission spectra of KCl :Pb and KBr:Pb are measured as a function of the impurity concentration in the crystals. The low energy emission depends stronger on the impurity concentration in crystals than the principal emission and is less excited within the A absorption band than within the C band. The low energy emission is well explained by the existence of a resonant transfer between − ν| 1 P 1 > + μ| 3 P 1 > and μ| 1 P 1 > + ν| 3 P 1 > electronic states.