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On the Excited States of the T1 + Monomer Centre in NaI
Author(s) -
Benci S.,
Fontana M. P.,
Manfredi M.
Publication year - 1977
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.2220810223
Subject(s) - excitation , excited state , radiative transfer , range (aeronautics) , atomic physics , absorption (acoustics) , monomer , materials science , emission spectrum , atmospheric temperature range , chemistry , physics , spectral line , optics , nuclear magnetic resonance , quantum mechanics , astronomy , meteorology , composite material , polymer
The A x emission band in NaI crystals containing the TI monomer centre is studied in the temperature range 25 to 295 K using a lifetime technique after pulsed excitation in A, B, C, and D absorption bands. The results show that the decay signal is complex and consists of three different slopes better resolved with A and D excitation than with B and C excitation. It is possible to conclude that at least two radiative levels contribute to the A x emission. The measured behaviour of the intensity of the different components is discussed taking into account also the available data of integrated emission.