https://scholars.lib.ntu.edu.tw/handle/123456789/606930
DC 欄位 | 值 | 語言 |
---|---|---|
dc.contributor.author | Fang M.-H | en_US |
dc.contributor.author | Lin J.-C | en_US |
dc.contributor.author | Huang W.-T | en_US |
dc.contributor.author | Majewska N | en_US |
dc.contributor.author | Barzowska J | en_US |
dc.contributor.author | Mahlik S | en_US |
dc.contributor.author | Pang W.K | en_US |
dc.contributor.author | Lee J.-F | en_US |
dc.contributor.author | Sheu H.-S | en_US |
dc.contributor.author | RU-SHI LIU | en_US |
dc.date.accessioned | 2022-04-25T06:39:17Z | - |
dc.date.available | 2022-04-25T06:39:17Z | - |
dc.date.issued | 2021 | - |
dc.identifier.issn | 08974756 | - |
dc.identifier.uri | https://www.scopus.com/inward/record.uri?eid=2-s2.0-85117122794&doi=10.1021%2facs.chemmater.1c02990&partnerID=40&md5=0b1e9710fddbcd39a12da0538deb444a | - |
dc.identifier.uri | https://scholars.lib.ntu.edu.tw/handle/123456789/606930 | - |
dc.description.abstract | Eu2+-doped UCr4C4-type oxynitride phosphors are emerging innovative materials to replace oxide and nitride phosphors for high-end light-emitting devices. However, the synthesis of high-purity phosphors and controlling the O/N ratio remain challenging. Here, we synthesized a series of Sr0.98Li2.5 + zAl1.5 - zO3 + 2zN1 - 2z:0.02Eu phosphors by precursor engineering, and these products showed an unexpected redshift from 583 to 620 nm. Joint refinement combining synchrotron X-ray diffraction and neutron powder diffraction was conducted to determine macro-structural properties. Extended X-ray absorption fine structure spectra revealed the micro-structural properties around the luminescent centers. The effects on photoluminescence from the first-shelled O/N ligands and the second-shelled Li/Al ions were demonstrated in detail. Finally, the light-emitting diode packages constructed using our phosphor revealed higher luminous efficiency of radiation and luminous efficacy than the SrLiAl3N4:Eu comparator. This study provided the basis for developing novel oxynitride phosphors and insights into the structural analysis from the macro and micro perspectives. ? 2021 American Chemical Society. | - |
dc.relation.ispartof | Chemistry of Materials | - |
dc.subject | Light | - |
dc.subject | Luminescence | - |
dc.subject | Nitrides | - |
dc.subject | Phosphors | - |
dc.subject | Structural analysis | - |
dc.subject | Structural properties | - |
dc.subject | X ray absorption | - |
dc.subject | X ray diffraction | - |
dc.subject | High purity | - |
dc.subject | Innovative materials | - |
dc.subject | Light-emitting device | - |
dc.subject | Lightemitting diode | - |
dc.subject | Luminescence controls | - |
dc.subject | Micro-structural | - |
dc.subject | Nitride phosphor | - |
dc.subject | Oxide phosphors | - |
dc.subject | Oxynitride phosphor | - |
dc.subject | Synthesised | - |
dc.subject | Light emitting diodes | - |
dc.title | Linking Macro- And Micro-structural Analysis with Luminescence Control in Oxynitride Phosphors for Light-Emitting Diodes | en_US |
dc.type | journal article | en |
dc.identifier.doi | 10.1021/acs.chemmater.1c02990 | - |
dc.identifier.scopus | 2-s2.0-85117122794 | - |
dc.relation.pages | 7897-7904 | - |
dc.relation.journalvolume | 33 | - |
dc.relation.journalissue | 19 | - |
item.fulltext | no fulltext | - |
item.openairecristype | http://purl.org/coar/resource_type/c_6501 | - |
item.cerifentitytype | Publications | - |
item.openairetype | journal article | - |
item.grantfulltext | none | - |
crisitem.author.dept | Chemistry | - |
crisitem.author.orcid | 0000-0002-1291-9052 | - |
crisitem.author.parentorg | College of Science | - |
顯示於: | 化學系 |
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