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Article: Improved performance of spherical BaWO4:Tb3+ phosphors for field-emission Displays

TitleImproved performance of spherical BaWO4:Tb3+ phosphors for field-emission Displays
Authors
Issue Date2009
PublisherElectrochemical Society, Inc. The Journal's web site is located at http://ojps.aip.org/JES
Citation
Journal Of The Electrochemical Society, 2009, v. 156 n. 5, p. J112-J116 How to Cite?
AbstractSpherical BaW O4: Tb3+ phosphors were prepared by the polyol method and postannealed at 900°C. A variety of properties were characterized by X-ray diffraction, field-emission scanning electron microscopy, transmission electron microscopy, Fourier transform IR spectra, low-voltage cathodoluminescence, photoluminescence spectra, and lifetime. The as-prepared phosphors were well-crystallized under relatively low synthesis temperature (160°C) and composed of spherical particles with an average size of 100 nm. After postannealing treatment, crystallinity of the phosphors is significantly improved and average particle size is increased to around 220 nm. Under low-voltage (≤4.5 kV) excitation of electron beam, bright green cathodoluminescence was observed, which is attributed to the characteristic emissions from Tb3+ (D35 - FJ7 and D45 - FJ7 transitions). The luminance was significantly improved from 141 to 4866 cd m2 after postannealing, which is mostly attributed to the improvement of crystallinity. © 2009 The Electrochemical Society.
Persistent Identifierhttp://hdl.handle.net/10722/59644
ISSN
2015 Impact Factor: 3.014
2015 SCImago Journal Rankings: 1.157
ISI Accession Number ID
Funding AgencyGrant Number
Research Grants Council of the Hong Kong Special Administrative Region, ChinaPolyU 500407
Hong Kong Polytechnic University Internal GrantJ-BB9R
Funding Information:

The work described in this paper was supported by a grant from the Research Grants Council of the Hong Kong Special Administrative Region, China (project no. PolyU 500407) and Hong Kong Polytechnic University Internal Grant (J-BB9R).

References

 

DC FieldValueLanguage
dc.contributor.authorLi, HLen_HK
dc.contributor.authorWang, ZLen_HK
dc.contributor.authorXu, SJen_HK
dc.contributor.authorHao, JHen_HK
dc.date.accessioned2010-05-31T03:54:23Z-
dc.date.available2010-05-31T03:54:23Z-
dc.date.issued2009en_HK
dc.identifier.citationJournal Of The Electrochemical Society, 2009, v. 156 n. 5, p. J112-J116en_HK
dc.identifier.issn0013-4651en_HK
dc.identifier.urihttp://hdl.handle.net/10722/59644-
dc.description.abstractSpherical BaW O4: Tb3+ phosphors were prepared by the polyol method and postannealed at 900°C. A variety of properties were characterized by X-ray diffraction, field-emission scanning electron microscopy, transmission electron microscopy, Fourier transform IR spectra, low-voltage cathodoluminescence, photoluminescence spectra, and lifetime. The as-prepared phosphors were well-crystallized under relatively low synthesis temperature (160°C) and composed of spherical particles with an average size of 100 nm. After postannealing treatment, crystallinity of the phosphors is significantly improved and average particle size is increased to around 220 nm. Under low-voltage (≤4.5 kV) excitation of electron beam, bright green cathodoluminescence was observed, which is attributed to the characteristic emissions from Tb3+ (D35 - FJ7 and D45 - FJ7 transitions). The luminance was significantly improved from 141 to 4866 cd m2 after postannealing, which is mostly attributed to the improvement of crystallinity. © 2009 The Electrochemical Society.en_HK
dc.languageengen_HK
dc.publisherElectrochemical Society, Inc. The Journal's web site is located at http://ojps.aip.org/JESen_HK
dc.relation.ispartofJournal of the Electrochemical Societyen_HK
dc.titleImproved performance of spherical BaWO4:Tb3+ phosphors for field-emission Displaysen_HK
dc.typeArticleen_HK
dc.identifier.emailXu, SJ: sjxu@hku.hken_HK
dc.identifier.authorityXu, SJ=rp00821en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1149/1.3095503en_HK
dc.identifier.scopuseid_2-s2.0-63649136707en_HK
dc.identifier.hkuros155099en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-63649136707&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume156en_HK
dc.identifier.issue5en_HK
dc.identifier.spageJ112en_HK
dc.identifier.epageJ116en_HK
dc.identifier.isiWOS:000264780400065-
dc.publisher.placeUnited Statesen_HK
dc.identifier.scopusauthoridLi, HL=24171151800en_HK
dc.identifier.scopusauthoridWang, ZL=9235514900en_HK
dc.identifier.scopusauthoridXu, SJ=7404439005en_HK
dc.identifier.scopusauthoridHao, JH=14025359200en_HK

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