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Mn(4+)-activated Li(3)Mg(2)SbO(6) as an ultrabright fluoride-free red-emitting phosphor for warm white light-emitting diodes

In this paper, we report on highly efficient Mn(4+)-activated double perovskite Li(3)Mg(2)SbO(6) (LMS) red-emitting phosphors. These LMS:Mn(4+) phosphors can be efficiently excited over a broad wavelength band from 235 nm to 600 nm peaking at 344 nm and 469 nm, and exhibited an intense red emission...

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Autores principales: Wang, Shaoying, Sun, Qi, Devakumar, Balaji, Liang, Jia, Sun, Liangling, Huang, Xiaoyong
Formato: Online Artículo Texto
Lenguaje:English
Publicado: The Royal Society of Chemistry 2019
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9060266/
https://www.ncbi.nlm.nih.gov/pubmed/35518958
http://dx.doi.org/10.1039/c8ra10158b
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author Wang, Shaoying
Sun, Qi
Devakumar, Balaji
Liang, Jia
Sun, Liangling
Huang, Xiaoyong
author_facet Wang, Shaoying
Sun, Qi
Devakumar, Balaji
Liang, Jia
Sun, Liangling
Huang, Xiaoyong
author_sort Wang, Shaoying
collection PubMed
description In this paper, we report on highly efficient Mn(4+)-activated double perovskite Li(3)Mg(2)SbO(6) (LMS) red-emitting phosphors. These LMS:Mn(4+) phosphors can be efficiently excited over a broad wavelength band from 235 nm to 600 nm peaking at 344 nm and 469 nm, and exhibited an intense red emission band with a range from 600 nm to 800 nm centered around 651 nm. The optimal Mn(4+) doping concentration of LMS:Mn(4+) was 0.6 mol% and its internal quantum efficiency can reach as high as 83%. Besides, the thermal quenching effect on the optical property was also analyzed. Finally, a warm white light-emitting diode (WLED) lamp was fabricated by using a 454 nm InGaN blue LED chip combined with a blend of YAG:Ce(3+) yellow phosphors and the as-prepared LMS:0.6% Mn(4+) red phosphors, which showed bright white light with CIE chromaticity coordinates (0.4093, 0.3725), correlated color temperature (CCT = 3254 K), color rendering index (CRI = 81) and luminous efficacy (LE = 87 lm/W).
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spelling pubmed-90602662022-05-04 Mn(4+)-activated Li(3)Mg(2)SbO(6) as an ultrabright fluoride-free red-emitting phosphor for warm white light-emitting diodes Wang, Shaoying Sun, Qi Devakumar, Balaji Liang, Jia Sun, Liangling Huang, Xiaoyong RSC Adv Chemistry In this paper, we report on highly efficient Mn(4+)-activated double perovskite Li(3)Mg(2)SbO(6) (LMS) red-emitting phosphors. These LMS:Mn(4+) phosphors can be efficiently excited over a broad wavelength band from 235 nm to 600 nm peaking at 344 nm and 469 nm, and exhibited an intense red emission band with a range from 600 nm to 800 nm centered around 651 nm. The optimal Mn(4+) doping concentration of LMS:Mn(4+) was 0.6 mol% and its internal quantum efficiency can reach as high as 83%. Besides, the thermal quenching effect on the optical property was also analyzed. Finally, a warm white light-emitting diode (WLED) lamp was fabricated by using a 454 nm InGaN blue LED chip combined with a blend of YAG:Ce(3+) yellow phosphors and the as-prepared LMS:0.6% Mn(4+) red phosphors, which showed bright white light with CIE chromaticity coordinates (0.4093, 0.3725), correlated color temperature (CCT = 3254 K), color rendering index (CRI = 81) and luminous efficacy (LE = 87 lm/W). The Royal Society of Chemistry 2019-01-25 /pmc/articles/PMC9060266/ /pubmed/35518958 http://dx.doi.org/10.1039/c8ra10158b Text en This journal is © The Royal Society of Chemistry https://creativecommons.org/licenses/by-nc/3.0/
spellingShingle Chemistry
Wang, Shaoying
Sun, Qi
Devakumar, Balaji
Liang, Jia
Sun, Liangling
Huang, Xiaoyong
Mn(4+)-activated Li(3)Mg(2)SbO(6) as an ultrabright fluoride-free red-emitting phosphor for warm white light-emitting diodes
title Mn(4+)-activated Li(3)Mg(2)SbO(6) as an ultrabright fluoride-free red-emitting phosphor for warm white light-emitting diodes
title_full Mn(4+)-activated Li(3)Mg(2)SbO(6) as an ultrabright fluoride-free red-emitting phosphor for warm white light-emitting diodes
title_fullStr Mn(4+)-activated Li(3)Mg(2)SbO(6) as an ultrabright fluoride-free red-emitting phosphor for warm white light-emitting diodes
title_full_unstemmed Mn(4+)-activated Li(3)Mg(2)SbO(6) as an ultrabright fluoride-free red-emitting phosphor for warm white light-emitting diodes
title_short Mn(4+)-activated Li(3)Mg(2)SbO(6) as an ultrabright fluoride-free red-emitting phosphor for warm white light-emitting diodes
title_sort mn(4+)-activated li(3)mg(2)sbo(6) as an ultrabright fluoride-free red-emitting phosphor for warm white light-emitting diodes
topic Chemistry
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9060266/
https://www.ncbi.nlm.nih.gov/pubmed/35518958
http://dx.doi.org/10.1039/c8ra10158b
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