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Luminescence quantum yield of Tb 3+ ‐activated yttrium compounds excited in the UV and VUV range
Author(s) -
Mayolet A.,
Krupa J. C.
Publication year - 1996
Publication title -
journal of the society for information display
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.578
H-Index - 52
eISSN - 1938-3657
pISSN - 1071-0922
DOI - 10.1889/1.1985011
Subject(s) - excited state , luminescence , atomic physics , ionization , yttrium , quantum yield , ion , materials science , ionization energy , thermal ionization , ground state , physics , electron ionization , optoelectronics , optics , quantum mechanics , metallurgy , fluorescence , oxide
— The energy transfer from the host to the dopant ion by capture of charge carrier gives rise to the self‐ionization (SI) state of the luminescent center. The oxido‐reduction power of the host matrix imposes on the luminescent center its self‐ionization state energy. In the configurational coordinate diagram of the luminescent center, the probability of non‐radiative relaxation from the self‐ionization state directly to the ground state increases when this former state is situated at low energy and/or when its coupling with the vibrational modes of the surrounding ions is important.