Document Detail

Synthesis and characterization of blue long-lasting BaCa(2) Al(8) O(15) :Eu(2+) , Dy(3+) phosphor.
MedLine Citation:
PMID:  23322531     Owner:  NLM     Status:  Publisher    
We have synthesized and characterized a new BaCa(2) Al(8) O(15) :Eu(2+) ,Dy(3+) phosphor prepared by the combustion method. X-ray diffraction, thermoluminescence, scanning electron microscope, time decay and optical spectral analysis photoluminescence excitation, emission spectra were used to characterize the phosphors. Broadband ultraviolet excited luminescence of the BaCa(2) Al(8) O(15) :Eu(2+) ,Dy(3+) was observed in the blue region (λ(max)  = 435 nm) due to transitions from the 4f(6) 5d(1) to the 4f(7) configuration of the Eu(2+) ion. Scanning electron microscopy has been used for exploring the morphological properties of the prepared phosphors. The BaCa(2) Al(8) O(15) :Eu(2+) phosphor has a blue afterglow when Dy(3+) ions were co-doped. The thermoluminescence spectra show that the Dy(3+) ion induces a proper trap in the phosphor with a depth of 0.67 eV and results in a long afterglow phosphorescence. Copyright © 2013 John Wiley & Sons, Ltd.
A N Yerpude; S J Dhoble; D Haranath
Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2013-1-16
Journal Detail:
Title:  Luminescence : the journal of biological and chemical luminescence     Volume:  -     ISSN:  1522-7243     ISO Abbreviation:  Luminescence     Publication Date:  2013 Jan 
Date Detail:
Created Date:  2013-1-16     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  100889025     Medline TA:  Luminescence     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
Copyright © 2013 John Wiley & Sons, Ltd.
Department of Physics, RTM Nagpur University, Nagpur, 440033, India.
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