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rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
2009-9-7
pubmed:abstractText
Y(4)MgSi(3)O(13):Bi(3+), Eu(3+) nanophosphors have been prepared by a facile sol-gel method. The products have been characterized by X-ray diffraction, field-emission scanning electron microscopy and fluorescence measurements. The results show that the nanophosphors are of single phase hexagonal Y(4)MgSi(3)O(13) with size-distribution of 50-90 nm in diameter. White-light emission has been obtained from Bi(3+) and Eu(3+) co-doped Y(4)MgSi(3)O(13) nanophosphors upon excitation of 350 nm ultraviolet light. It is noted that Bi(3+) ions can occupy two different Y(3+) sites and generate different emissions from the (3)p(1) --> (1)s(0) transition. Warm white light has been obtained from Y(4)MgSi(3)O(13):Bi(3+), Eu(3+) nanophosphors according to Commission International de I'Eclairage (CIE) chromaticity coordinates and color temperature (T(c)) with appropriately adjusted contents of Bi(3+) and Eu(3+). The results indicate that Y(4)MgSi(3)O(13):0.08Bi(3+), 0.04Eu(3+) (x = 0.31, y = 0.31, T(c) = 6907 K) are potential nanophosphors for white light-emitting diodes (LEDs) applications.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Oct
pubmed:issn
1873-3557
pubmed:author
pubmed:issnType
Electronic
pubmed:day
1
pubmed:volume
74
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
498-501
pubmed:meshHeading
pubmed:year
2009
pubmed:articleTitle
Warm white light from Y4MgSi3O13:Bi3+, Eu3+ nanophosphor for white light-emitting diodes.
pubmed:affiliation
MOE Key Lab of Specially Functional Materials and Institute of Optical Communication Materials, South China University of Technology, Guangzhou 510641, PR China.
pubmed:publicationType
Journal Article