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Energy Transfer Mechanisms in the NaCl:Pb ++ , Mn ++ System along Aggregation Processes
Author(s) -
Capelletti R.,
Manfredi M.,
Solzi M.
Publication year - 1985
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.2221290240
Subject(s) - acceptor , energy transfer , ion , absorption (acoustics) , impurity , chemistry , resonant inductive coupling , absorption band , radiative transfer , analytical chemistry (journal) , materials science , chemical physics , optics , physics , condensed matter physics , organic chemistry , chromatography , composite material
Abstract The non‐radiative energy transfer mechanisms between Pb ++ (donor) and Mn ++ (acceptor) ions in NaCl:Pb ++ , Mn ++ system are examined at different aggregation stages of the impurities. Mn ++ ions are characterized by a series of absorption bands partially overlapping the emission bands of Pb ++ aggregates peaking at 380, 430, and 500 to 530 nm. The energy transfer mechanism connected with Pb ++ ‐380 nm emission band is based on a resonant single pair interaction, while the transfer process connected with 430 nm and 500 to 530 nm emission bands can be explained on the basis of a fast energy migration within the donor system followed by a final transfer, donor–acceptor, that is resonant for the transfer connected with 430 nm band and phonon assisted for the transfer connected with the 500 to 530 nm band.