Document Detail

Synthesis and luminescence properties of Ca(3) Ga(2) Si(3) O(12) :RE(3+) (RE = Eu/Tb) powder phosphors.
MedLine Citation:
PMID:  21491579     Owner:  NLM     Status:  Publisher    
Rare earth ions (Eu(3+) or Tb(3+) )-activated Ca(3) Ga(2) Si(3) O(12) (CaGaSi) phosphors were synthesized by using a sol-gel method. Photoluminescence spectra of Eu(3+) :CaGaSi phosphors exhibited five emission bands at 578, 592, 612, 652 and 701 nm, which were assigned to the transitions ((5) D(0)  → (7) F(0) , (7) F(1,) (7) F(2) , (7) F(3) and (7) F(4) ), respectively, with an excitation wavelength of λ(exci)  = 392 nm. Among these, the transition (5) D(0)  → (7) F(2) (612 nm) displayed bright red emission. In the case of Tb(3+) :CaGaSi phosphors, four emission bands were observed at 488 ((5) D(4)  → (7) F(6) ), 543 ((5) D(4)  → (7) F(5) ), 584 ((5) D(4)  → (7) F(4) ) and 614 nm ((5) D(4)  → (7) F(3) ) from the measurement of PL spectra with λ(exci)  = 376 nm. Among these, the transition (5) D(4)  → (7) F(5) at 543 nm displayed bright green emission. The structure and morphology of the phosphors were studied from the measurements of X-ray diffraction (XRD), scanning electron microscopy (SEM) and energy-dispersive X-ray analysis (EDAX) results. Copyright © 2011 John Wiley & Sons, Ltd.
M Bhushana Reddy; S Sailaja; K Vemasevana Raju; C Nageswara Raju; P Giridhar; B Vengala Rao; B Sudhakar Reddy
Related Documents :
12126389 - Catalytic oxidations of steroid substrates by artificial cytochrome p-450 enzymes.
20981359 - Development of the first well-defined tungsten oxo alkyl derivatives supported on silic...
16773729 - Preparation of so4(2-)/tio2-la2o3 solid superacid and its catalytic activities in aceta...
16688339 - Modulation of the reactivity, stability and substrate- and enantioselectivity of an epo...
6367979 - Analysis of linkage positions in saccharomyces cerevisiae d-mannans by the reductive-cl...
12670259 - Reaction of vinyl chloride with late transition metal olefin polymerization catalysts.
6488199 - Structural determination of the capsular polysaccharide of streptococcus pneumoniae typ...
12639149 - 1h,1h,2h,2h-perfluoroalkyl-functionalization of ni(ii), pd(ii), and pt(ii) mono- and di...
23278019 - Hydrogen gas sensor based on palladium and yttrium alloy ultrathin film.
Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2011-4-13
Journal Detail:
Title:  Luminescence : the journal of biological and chemical luminescence     Volume:  -     ISSN:  1522-7243     ISO Abbreviation:  -     Publication Date:  2011 Apr 
Date Detail:
Created Date:  2011-4-14     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 © 2011 John Wiley & Sons, Ltd.
Department of Physics, SV Degree College, Kadapa, YSR District, 516003, India.
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

Previous Document:  Stability-indicating micelle-enhanced spectrofluorimetric method for determination of loratadine and...
Next Document:  Sodium azide as a specific quencher of singlet oxygen during chemiluminescent detection by luminol a...