{"@context":{"@vocab":"https://cir.nii.ac.jp/schema/1.0/","rdfs":"http://www.w3.org/2000/01/rdf-schema#","dc":"http://purl.org/dc/elements/1.1/","dcterms":"http://purl.org/dc/terms/","foaf":"http://xmlns.com/foaf/0.1/","prism":"http://prismstandard.org/namespaces/basic/2.0/","cinii":"http://ci.nii.ac.jp/ns/1.0/","datacite":"https://schema.datacite.org/meta/kernel-4/","ndl":"http://ndl.go.jp/dcndl/terms/","jpcoar":"https://github.com/JPCOAR/schema/blob/master/2.0/"},"@id":"https://cir.nii.ac.jp/crid/1363670320887788032.json","@type":"Article","productIdentifier":[{"identifier":{"@type":"DOI","@value":"10.1063/1.3159889"}},{"identifier":{"@type":"URI","@value":"https://pubs.aip.org/aip/jap/article-pdf/doi/10.1063/1.3159889/14851298/013522_1_online.pdf"}}],"dc:title":[{"@value":"Luminescent properties of Pr3+-sensitized LaPO4:Gd3+ ultraviolet-B phosphor under vacuum-ultraviolet light excitation"}],"description":[{"type":"abstract","notation":[{"@value":"<jats:p>Luminescent properties of Pr3+-sensitized LaPO4:Gd3+ under vacuum-ultraviolet (vuv) light excitation have been investigated. The energy transfer probably occurs from the 5d levels in Pr3+ ions to Gd3+ ions under 172nm light excitation. LaPO4:Gd3+,Pr3+ shows efficient ultraviolet-B (uv-B) emission at 312nm, whose peak intensity reaches its maximum at Gd=35mol% and Pr=5mol%. (La0.65Gd0.35)0.95Pr0.05PO4 is about 1.6 times higher than a typical uv-B phosphor for vuv lamp, Y0.75Gd0.25Al3(BO3)4, in Gd3+-emission intensity under 172nm light excitation. This result implies that the Pr3+-sensitized LaPO4:Gd3+ is a candidate of uv-B phosphors for xenon-excimer discharge vuv lamps. In order to evaluate the effect of the narrow-band uv-B emission by LaPO4:Gd3+,Pr3+ phosphor, irradiation test on DNA was performed. The irradiation damage of pUC 18 DNA by the narrow-band uv-B light from the LaPO4:Gd3+,Pr3+ phosphor is in the same magnitude as that by uv-A light from a filtered Hg lamp, even though the uv-B lamp is higher than the uv-A lamp in power density and photon energy.</jats:p>"}]}],"creator":[{"@id":"https://cir.nii.ac.jp/crid/1383670320887788034","@type":"Researcher","foaf:name":[{"@value":"Shinji Okamoto"}],"jpcoar:affiliationName":[{"@value":"Tokyo Kagaku Kenkyusho Co., Ltd. 1 , 2-2-1 Shimotsuruma, Yamato, Kanagawa 242-0001, Japan"}]},{"@id":"https://cir.nii.ac.jp/crid/1383670320887788035","@type":"Researcher","foaf:name":[{"@value":"Rika Uchino"}],"jpcoar:affiliationName":[{"@value":"Tokyo University of Technology 2 School of Bionics, , 1404-1 Katakura, Hachioji, Tokyo 192-0982, Japan"}]},{"@id":"https://cir.nii.ac.jp/crid/1383670320887788033","@type":"Researcher","foaf:name":[{"@value":"Keisuke Kobayashi"}],"jpcoar:affiliationName":[{"@value":"Tokyo University of Technology 2 School of Bionics, , 1404-1 Katakura, Hachioji, Tokyo 192-0982, Japan"}]},{"@id":"https://cir.nii.ac.jp/crid/1383670320887788032","@type":"Researcher","foaf:name":[{"@value":"Hajime Yamamoto"}],"jpcoar:affiliationName":[{"@value":"Tokyo University of Technology 2 School of Bionics, , 1404-1 Katakura, Hachioji, Tokyo 192-0982, Japan"}]}],"publication":{"publicationIdentifier":[{"@type":"PISSN","@value":"00218979"},{"@type":"EISSN","@value":"10897550"}],"prism:publicationName":[{"@value":"Journal of Applied Physics"}],"dc:publisher":[{"@value":"AIP Publishing"}],"prism:publicationDate":"2009-07-01","prism:volume":"106","prism:number":"1","prism:startingPage":"013522"},"reviewed":"false","url":[{"@id":"https://pubs.aip.org/aip/jap/article-pdf/doi/10.1063/1.3159889/14851298/013522_1_online.pdf"}],"createdAt":"2009-07-09","modifiedAt":"2023-07-06","relatedProduct":[{"@id":"https://cir.nii.ac.jp/crid/1360002214651328000","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"UV cathodoluminescence of Gd<sup>3+</sup>doped and Gd<sup>3+</sup>Pr<sup>3+</sup>co-doped YAlO<sub>3</sub>epitaxial thin films"}]},{"@id":"https://cir.nii.ac.jp/crid/1360004232540979712","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Preparation of thin films of perovskite-type YAlO 3 :Gd 3+ –Pr 3+ UV phosphors"}]},{"@id":"https://cir.nii.ac.jp/crid/1360004232541090560","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Determination of 4f energy levels for trivalent lanthanide ions in YAlO3 by X-ray photoelectron spectroscopy"}]},{"@id":"https://cir.nii.ac.jp/crid/1360285707304670976","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Phase formation and UV luminescence of Gd3+ doped perovskite-type YScO3"}]},{"@id":"https://cir.nii.ac.jp/crid/1360285708103232128","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Luminescence and Location of Gd<sup>3+</sup> or Tb<sup>3+</sup> Ions in Perovskite-Type LaScO<sub>3</sub>"}]},{"@id":"https://cir.nii.ac.jp/crid/1360567182241191808","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"UV emission from Gd3+ ions in Gd3+–Pr3+ codoped YAlO3 perovskite"}]},{"@id":"https://cir.nii.ac.jp/crid/1360567183556228736","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Deep-ultraviolet transparent monolithic sol–gel derived silica–REPO<sub>4</sub> (RE = Y, La–Lu except Pm) glass-ceramics: characterization of the crystal structure and ultraviolet absorption edge, and application to narrow-band UVB phosphors"}]},{"@id":"https://cir.nii.ac.jp/crid/1360572092429180032","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Negligible concentration quenching in photoluminescent nanocrystals with high photoactive rare-earth concentrations: silica–(Tb,Ce)PO<sub>4</sub> transparent glass-ceramic green phosphors"}]},{"@id":"https://cir.nii.ac.jp/crid/1360584340539731072","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Temperature dependence of narrow-band UVB photoluminescence of silica–(Gd,Pr)PO<sub>4</sub> transparent glass-ceramic phosphors"}]},{"@id":"https://cir.nii.ac.jp/crid/1360848657471047168","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"UV emissions in Gd3+ doped or Gd3+–Pr3+ Co-doped III–III perovskite-type RMO3 (R=Y, La; 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