Publications
Detailed Information
Effect of local environment and Sm3+-codoping on the luminescence properties in the Eu3+-doped potassium tungstate phosphor for white LEDS
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Lee, Gwan-Hyoung | - |
dc.contributor.author | Kim, Tae-Hyung | - |
dc.contributor.author | Yoon, Chulsoo | - |
dc.contributor.author | Kang, Shinhoo | - |
dc.date.accessioned | 2024-05-14T07:43:05Z | - |
dc.date.available | 2024-05-14T07:43:05Z | - |
dc.date.created | 2024-04-16 | - |
dc.date.created | 2024-04-16 | - |
dc.date.created | 2024-04-16 | - |
dc.date.issued | 2008-12 | - |
dc.identifier.citation | Journal of Luminescence, Vol.128 No.12, pp.1922-1926 | - |
dc.identifier.issn | 0022-2313 | - |
dc.identifier.uri | https://hdl.handle.net/10371/202120 | - |
dc.description.abstract | The luminescence properties of Eu3+ and Sm3+-doped potassium tungstate phosphors were investigated. The K4-3(x+y) (WO4)(2):Eu3+,Sm-y(3+) phosphor was produced by solid-state reactions, followed by re-firing with a flux. The phosphor showed a strong absorption in the near-UV to green region due to 4f-4f electron transitions of the Eu3+ and Sm3+ ions, generating a red emission. The excitation spectrum could be adjusted by Sm3+-codoping. A small amount of Sm3+, acting as a sensitizer, increased the energy absorption peak at 405 nm. The crystal structure and local environment around the Eu3+ ions were determined using the Rietveld method. The crystal structure of this phosphor was determined to be monoclinic with a space group of C2/c. The small Eu-0 distance in the crystal led to high energy-level splitting at the D-5(0) -> F-7(2) transition of the Eu3+ ions, resulting in more emission peaks. Crown Copyright (c) 2008 Published by Elsevier B.V. All rights reserved. | - |
dc.language | 영어 | - |
dc.publisher | Elsevier BV | - |
dc.title | Effect of local environment and Sm3+-codoping on the luminescence properties in the Eu3+-doped potassium tungstate phosphor for white LEDS | - |
dc.type | Article | - |
dc.identifier.doi | 10.1016/j.jlumin.2008.05.020 | - |
dc.citation.journaltitle | Journal of Luminescence | - |
dc.identifier.wosid | 000259955000012 | - |
dc.identifier.scopusid | 2-s2.0-51249105962 | - |
dc.citation.endpage | 1926 | - |
dc.citation.number | 12 | - |
dc.citation.startpage | 1922 | - |
dc.citation.volume | 128 | - |
dc.description.isOpenAccess | N | - |
dc.contributor.affiliatedAuthor | Lee, Gwan-Hyoung | - |
dc.contributor.affiliatedAuthor | Kang, Shinhoo | - |
dc.type.docType | Article | - |
dc.description.journalClass | 1 | - |
dc.subject.keywordPlus | CRYSTALS | - |
dc.subject.keywordAuthor | Europium | - |
dc.subject.keywordAuthor | Samarium | - |
dc.subject.keywordAuthor | Potassium tungstate | - |
dc.subject.keywordAuthor | Phosphor | - |
dc.subject.keywordAuthor | Near ultra violet | - |
dc.subject.keywordAuthor | LED | - |
dc.subject.keywordAuthor | Flux | - |
dc.subject.keywordAuthor | Rietveld | - |
dc.subject.keywordAuthor | Sensitizer | - |
dc.subject.keywordAuthor | Local environment | - |
- Appears in Collections:
- Files in This Item:
- There are no files associated with this item.
Item View & Download Count
Items in S-Space are protected by copyright, with all rights reserved, unless otherwise indicated.