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- Publisher Website: 10.1021/acsomega.8b01127
- Scopus: eid_2-s2.0-85055329848
- PMID: 31458071
- WOS: WOS:000449026500150
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Article: Large Negative-Thermal-Quenching Effect in Phonon-Induced Light Emissions in Mn4+-Activated Fluoride Phosphor for Warm-White Light-Emitting Diodes
Title | Large Negative-Thermal-Quenching Effect in Phonon-Induced Light Emissions in Mn4+-Activated Fluoride Phosphor for Warm-White Light-Emitting Diodes |
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Authors | |
Issue Date | 2018 |
Publisher | American Chemical Society: Open Access Titles. The Journal's web site is located at http://pubs.acs.org/journal/acsodf |
Citation | ACS Omega, 2018, v. 3 n. 10, p. 13704-13710 How to Cite? |
Abstract | Currently, hunting for anti-temperature-degradation high-efficiency phosphors has become crucially significant for fabricating high-brightness phosphor-converted white light-emitting diodes (pc-WLEDs). Herein, we show that photoluminescence in a kind of full-solution-processed K2SiF6:Mn4+ red phosphor exhibits an extraordinarily large negative thermal quenching property. For instance, under the excitation of 477 nm laser light, the sample photoluminescence intensity amazingly increases by 347-fold when the temperature is increased from 4 to 477 K. The temperature-driven transition probability enhancement of the phonon-induced luminescence around Mn4+ ions in the phosphor is argued to be responsible for the large negative-thermal-quenching phenomenon. We also demonstrate a pc-WLED with Ra of 82 and correlated color temperature of 2701 K by using the K2SiF6:Mn4+ red phosphor + commercial yellow phosphor of YAG:Ce3+. |
Persistent Identifier | http://hdl.handle.net/10722/266089 |
ISSN | 2023 Impact Factor: 3.7 2023 SCImago Journal Rankings: 0.710 |
PubMed Central ID | |
ISI Accession Number ID |
DC Field | Value | Language |
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dc.contributor.author | Tang, F | - |
dc.contributor.author | Su, Z | - |
dc.contributor.author | Ye, H | - |
dc.contributor.author | Gao, WP | - |
dc.contributor.author | Pan, XQ | - |
dc.contributor.author | Xu, S | - |
dc.date.accessioned | 2018-12-17T02:16:45Z | - |
dc.date.available | 2018-12-17T02:16:45Z | - |
dc.date.issued | 2018 | - |
dc.identifier.citation | ACS Omega, 2018, v. 3 n. 10, p. 13704-13710 | - |
dc.identifier.issn | 2470-1343 | - |
dc.identifier.uri | http://hdl.handle.net/10722/266089 | - |
dc.description.abstract | Currently, hunting for anti-temperature-degradation high-efficiency phosphors has become crucially significant for fabricating high-brightness phosphor-converted white light-emitting diodes (pc-WLEDs). Herein, we show that photoluminescence in a kind of full-solution-processed K2SiF6:Mn4+ red phosphor exhibits an extraordinarily large negative thermal quenching property. For instance, under the excitation of 477 nm laser light, the sample photoluminescence intensity amazingly increases by 347-fold when the temperature is increased from 4 to 477 K. The temperature-driven transition probability enhancement of the phonon-induced luminescence around Mn4+ ions in the phosphor is argued to be responsible for the large negative-thermal-quenching phenomenon. We also demonstrate a pc-WLED with Ra of 82 and correlated color temperature of 2701 K by using the K2SiF6:Mn4+ red phosphor + commercial yellow phosphor of YAG:Ce3+. | - |
dc.language | eng | - |
dc.publisher | American Chemical Society: Open Access Titles. The Journal's web site is located at http://pubs.acs.org/journal/acsodf | - |
dc.relation.ispartof | ACS Omega | - |
dc.rights | Copyright © 2018 American Chemical Society. This is an open access article published under an ACS AuthorChoice License, which permits copying and redistribution of the article or any adaptations for non-commercial purposes. | - |
dc.title | Large Negative-Thermal-Quenching Effect in Phonon-Induced Light Emissions in Mn4+-Activated Fluoride Phosphor for Warm-White Light-Emitting Diodes | - |
dc.type | Article | - |
dc.identifier.email | Xu, S: sjxu@hku.hk | - |
dc.identifier.authority | Xu, S=rp00821 | - |
dc.description.nature | published_or_final_version | - |
dc.identifier.doi | 10.1021/acsomega.8b01127 | - |
dc.identifier.pmid | 31458071 | - |
dc.identifier.pmcid | PMC6644705 | - |
dc.identifier.scopus | eid_2-s2.0-85055329848 | - |
dc.identifier.hkuros | 296242 | - |
dc.identifier.volume | 3 | - |
dc.identifier.issue | 10 | - |
dc.identifier.spage | 13704 | - |
dc.identifier.epage | 13710 | - |
dc.identifier.isi | WOS:000449026500150 | - |
dc.publisher.place | United States | - |
dc.identifier.issnl | 2470-1343 | - |