Structural and luminescent properties of red-emitting SrGe4O9: Mn4+ phosphors for white light-emitting diodes with high color rendering index
DC Field | Value | Language |
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dc.contributor.author | Kim, Seung Jun | - |
dc.contributor.author | Jang, Ho Seong | - |
dc.contributor.author | Unithrattil, Sanjith | - |
dc.contributor.author | Kim, Yoon Hwa | - |
dc.contributor.author | Im, Won Bin | - |
dc.date.accessioned | 2021-08-02T16:54:40Z | - |
dc.date.available | 2021-08-02T16:54:40Z | - |
dc.date.created | 2021-05-14 | - |
dc.date.issued | 2016-04 | - |
dc.identifier.issn | 0022-2313 | - |
dc.identifier.uri | https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/23182 | - |
dc.description.abstract | A red-emitting SrGe3.99Mn0.01O9 (SGO:Mn4+) phosphor have been prepared by a solid-state reaction. The structural and optical properties of SGO:Mn4+ phosphors, together with their thermal quenching property have been investigated. The 3d electrons of Mn4+ at octahedral sites of the SGO host showed a crystal field splitting Dq of 2380 cm−1 and Racah parameters, B and C of 1970 and 860 cm−1, respectively. Due to the 4A2g→4T1g and 4A2g→2T2g transitions, broad photoluminescence excitation bands were observed at the spectral region spanning from ultraviolet to blue light. The transition from 2Eg to 4A2g results in a sharp emission peak at 655 nm. When the yellow-emitting Y3Al5O12:Ce3+ and red-emitting SGO:Mn4+ phosphors were incorporated into a blue light-emitting diode (LED), the fabricated white LED showed an emission in the natural white light region with an excellent color rendering index of 92 and a color stability against an increase in the forward current. Thus, SGO:Mn4+ can be a potential red-emitting phosphor in the fabrication of white LEDs. | - |
dc.language | 영어 | - |
dc.language.iso | en | - |
dc.publisher | ELSEVIER SCIENCE BV | - |
dc.title | Structural and luminescent properties of red-emitting SrGe4O9: Mn4+ phosphors for white light-emitting diodes with high color rendering index | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Im, Won Bin | - |
dc.identifier.doi | 10.1016/j.jlumin.2015.11.042 | - |
dc.identifier.scopusid | 2-s2.0-84950288451 | - |
dc.identifier.wosid | 000370381600015 | - |
dc.identifier.bibliographicCitation | JOURNAL OF LUMINESCENCE, v.172, pp.99 - 104 | - |
dc.relation.isPartOf | JOURNAL OF LUMINESCENCE | - |
dc.citation.title | JOURNAL OF LUMINESCENCE | - |
dc.citation.volume | 172 | - |
dc.citation.startPage | 99 | - |
dc.citation.endPage | 104 | - |
dc.type.rims | ART | - |
dc.type.docType | 정기학술지(Article(Perspective Article포함)) | - |
dc.description.journalClass | 1 | - |
dc.description.isOpenAccess | N | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Optics | - |
dc.relation.journalWebOfScienceCategory | Optics | - |
dc.subject.keywordPlus | SOLID-SOLUTION PHOSPHORS | - |
dc.subject.keywordPlus | BREDIGITE-STRUCTURE | - |
dc.subject.keywordPlus | ENERGY-TRANSFER | - |
dc.subject.keywordPlus | EFFICIENT | - |
dc.subject.keywordPlus | MN4+ | - |
dc.subject.keywordPlus | TETRAGERMANATE | - |
dc.subject.keywordPlus | SUBSTITUTION | - |
dc.subject.keywordPlus | EMISSION | - |
dc.subject.keywordAuthor | LED phosphor | - |
dc.subject.keywordAuthor | Red phosphor | - |
dc.subject.keywordAuthor | Rietveld refinement | - |
dc.subject.keywordAuthor | Solid-state lighting | - |
dc.identifier.url | https://www.sciencedirect.com/science/article/pii/S0022231315304543?via%3Dihub | - |
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