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Study of photophysical properties of different metal complexes of Alq 3
Author(s) -
Bhagat S. A.,
Raut S. B.,
Dhoble S. J.
Publication year - 2012
Publication title -
luminescence
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.428
H-Index - 45
eISSN - 1522-7243
pISSN - 1522-7235
DOI - 10.1002/bio.2431
Subject(s) - phosphor , photoluminescence , excited state , ionic radius , ionic bonding , materials science , wavelength , ion , metal , luminescence , analytical chemistry (journal) , optoelectronics , photochemistry , chemistry , atomic physics , physics , organic chemistry , chromatography , metallurgy
Different metal complexes of Alq 3 (K + , Sr 2+ , Ca 2+ and Mg 2+ ) were synthesized by the precipitation method. The characterization of photoluminescence showed that presence of Mg 2+ ion enhances photoluminescence of Alq 3 phosphor. The emission spectra are observed at 560 nm when excited at a wavelength of 440 nm. The phosphor is excited at a longer wavelength in the blue region of small energy, so that it could be used as lamp phosphor. It is observed that the prepared phosphor AlMgq 5 is more suitable than Alq 3. The ionic radii of K + , Sr 2+ , Ca 2+ and Mg 2+ ions are in decreasing order. Therefore, the remarkable properties of AlMgq 5 could be considered as promising materials as opto‐ or optoelectronic materials. Copyright © 2012 John Wiley & Sons, Ltd.
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