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On the Luminescence of Some s 2 ‐Ion‐Activated Alkaline‐Earth Phosphates
Author(s) -
van der Steen A. C.,
Aalders Th. J. A.
Publication year - 1981
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.2221030244
Subject(s) - alkaline earth metal , luminescence , excited state , ion , chemistry , analytical chemistry (journal) , persistent luminescence , atomic physics , alkali metal , materials science , physics , thermoluminescence , optoelectronics , organic chemistry , chromatography
The luminescence properties of β‐Ca 3 (PO 4 ) 2 :Tl + , β‐Ca 3 (PO 4 ) 2 :Bi 3+ , and α‐Sr 3 (PO 4 ) 2 :Sn 2+ are reinvestigated. The emission spectrum of β‐Ca 3 (PO 4 ) 2 :Tl + consists of two bands which can be ascribed to a Jahn‐Teller effect in the excited state of the Tl + ion. The emission spectrum of Bi 3+ ‐activated β‐Ca 3 (PO 4 ) 2 shows vibrational structure. The 3 P 0 emission of the Sn 2+ ion in α‐Sr 3 (PO 4 ) 2 can only be observed at very low temperatures. The trap depth amounts to 23 cm −1 .
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