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Improvement of photoluminescence of Cu + ion in Li 2 SO 4
Author(s) -
Puppalwar S. P.,
Dhoble S. J.,
Kumar Animesh
Publication year - 2010
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.1252
Subject(s) - photoluminescence , phosphor , luminescence , ion , analytical chemistry (journal) , materials science , spectral line , emission spectrum , chemistry , optoelectronics , physics , organic chemistry , chromatography , astronomy
The synthesis of the Li 2 SO 4 : Cu phosphor using a wet chemical method is reported here. The XRD technique showed the crystalline nature of the prepared material. The presence of Na and K in the host affected the observed photoluminescence characteristics of Li 2 SO 4 : Cu. Photoluminsecent emission spectra of Li 2 SO 4 : Cu phosphor showed a very strong prominet peak at 387 nm in the indigo region due to 3d 9 4 s 1 ↔ 3d 10 transition of the Cu + ion. The increase in peak intensity of the PL spectrum suggests that Cu + acts as the luminescence center in the present matrix. Copyright © 2010 John Wiley & Sons, Ltd.