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Article: Cathodoluminescent characteristics of green-emitting ZnAl2O4:Mn thin-film phosphors

TitleCathodoluminescent characteristics of green-emitting ZnAl2O4:Mn thin-film phosphors
Authors
Issue Date2005
PublisherSpringer Verlag. The Journal's web site is located at http://link.springer.de/link/service/journals/00339/index.htm
Citation
Applied Physics A: materials science & processing, 2005, v. 80 n. 1, p. 151-154 How to Cite?
AbstractThin films of ZnAl2O4:Mn were grown on aluminosilicate ceramic plates using spray pyrolysis of aqueous solutions. The cathodoluminescence (CL) properties of the films under low to medium excitation voltage (<5 kV) were investigated. The films exhibited green CL after being annealed at temperatures above 550 °C, which corresponds to the transition between 4T1 and 6A1 of Mn2+ ions located in the tetra coordination of the Zn2+ site in the spinel structure. The chromaticity coordinates were x=0.150 and y=0.734 with a dominant wavelength of 525 nm and an 82% color purity. The CL luminance and efficiency depended on the excitation voltage and current density. Saturation effects were observed as the current density increased. A luminance of 540 cd/m2 and an efficiency of 4.5 lm/W were obtained at an excitation voltage of 4 kV with a current density of 38 μ A/cm2.
Persistent Identifierhttp://hdl.handle.net/10722/225948
ISSN
2015 Impact Factor: 1.444
2015 SCImago Journal Rankings: 0.535

 

DC FieldValueLanguage
dc.contributor.authorLou, Z-
dc.contributor.authorHao, J-
dc.date.accessioned2016-05-31T04:01:04Z-
dc.date.available2016-05-31T04:01:04Z-
dc.date.issued2005-
dc.identifier.citationApplied Physics A: materials science & processing, 2005, v. 80 n. 1, p. 151-154-
dc.identifier.issn0947-8396-
dc.identifier.urihttp://hdl.handle.net/10722/225948-
dc.description.abstractThin films of ZnAl2O4:Mn were grown on aluminosilicate ceramic plates using spray pyrolysis of aqueous solutions. The cathodoluminescence (CL) properties of the films under low to medium excitation voltage (<5 kV) were investigated. The films exhibited green CL after being annealed at temperatures above 550 °C, which corresponds to the transition between 4T1 and 6A1 of Mn2+ ions located in the tetra coordination of the Zn2+ site in the spinel structure. The chromaticity coordinates were x=0.150 and y=0.734 with a dominant wavelength of 525 nm and an 82% color purity. The CL luminance and efficiency depended on the excitation voltage and current density. Saturation effects were observed as the current density increased. A luminance of 540 cd/m2 and an efficiency of 4.5 lm/W were obtained at an excitation voltage of 4 kV with a current density of 38 μ A/cm2.-
dc.languageeng-
dc.publisherSpringer Verlag. The Journal's web site is located at http://link.springer.de/link/service/journals/00339/index.htm-
dc.relation.ispartofApplied Physics A: materials science & processing-
dc.rightsThe final publication is available at Springer via http://dx.doi.org/[insert DOI]-
dc.titleCathodoluminescent characteristics of green-emitting ZnAl2O4:Mn thin-film phosphors-
dc.typeArticle-
dc.identifier.emailHao, J: jhhao@hku.hk-
dc.identifier.doi10.1007/s00339-003-2211-8-
dc.identifier.hkuros97441-
dc.identifier.volume80-
dc.identifier.issue1-
dc.identifier.spage151-
dc.identifier.epage154-
dc.publisher.placeGermany-

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