完整後設資料紀錄
DC 欄位 | 值 | 語言 |
---|---|---|
dc.contributor.author | Chiu, Chuang-Hung | en_US |
dc.contributor.author | Liu, Chih-Hsuan | en_US |
dc.contributor.author | Huang, Sheng-Bang | en_US |
dc.contributor.author | Chen, Teng-Ming | en_US |
dc.date.accessioned | 2014-12-08T15:15:06Z | - |
dc.date.available | 2014-12-08T15:15:06Z | - |
dc.date.issued | 2007 | en_US |
dc.identifier.issn | 0013-4651 | en_US |
dc.identifier.uri | http://hdl.handle.net/11536/11340 | - |
dc.identifier.uri | http://dx.doi.org/10.1149/1.2731042 | en_US |
dc.description.abstract | The fundamental luminescence and chromaticity properties of a class of red-emitting phosphors LiEu(WO4)(2-x)(MoO4)(x) under near-UV excitation have been investigated. The photoluminescence (PL) and photoluminescence excitation (PLE) spectra reveal that the absorption is mainly attributed to O -> Mo(W) charge transfer at 300 nm and the Eu3+ transitions in near-UV and visible regions, and red emissions are assigned to intraconfigurational 4f-4f transitions of Eu3+. Both PL and PLE intensity were found to increase with increasing doped Mo content. The intensity of the D-5(0) -> F-7(2) emission of Eu3+ activated at 394 nm was found to reach a maximum when the relative ratio of Mo/W was 2:0. The CIE chromaticity coordinates were found to be (0.66, 0.33) for LiEu(MoO4)(2) and it reached the same level as the commodity phosphor Y2O2S:Eu3+. A white-light-emitting diode fabricated using the composition-optimized LiEu(MoO4)(2) and the matching green- and blue-emitting phosphors shows that the quality of red color reproduction based on LiEu(MoO4)(2) was found to be much higher and improved than that using La2O2S:Eu3+. (C) 2007 The Electrochemical Society. | en_US |
dc.language.iso | en_US | en_US |
dc.title | White-light-emitting diodes using red-emitting LiEu(WO4)(2-x)(MoO4)(x) phosphors | en_US |
dc.type | Article | en_US |
dc.identifier.doi | 10.1149/1.2731042 | en_US |
dc.identifier.journal | JOURNAL OF THE ELECTROCHEMICAL SOCIETY | en_US |
dc.citation.volume | 154 | en_US |
dc.citation.issue | 7 | en_US |
dc.citation.spage | J181 | en_US |
dc.citation.epage | J184 | en_US |
dc.contributor.department | 應用化學系 | zh_TW |
dc.contributor.department | Department of Applied Chemistry | en_US |
dc.identifier.wosnumber | WOS:000246892000071 | - |
dc.citation.woscount | 28 | - |
顯示於類別: | 期刊論文 |