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Different metal complexes of Alq3 (K+, Sr2+, Ca2+ and Mg2+) were synthesized by the precipitation method. The characterization of photoluminescence showed that presence of Mg2+ ion enhances photoluminescence of Alq3 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...
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