Chemical unit co-substitution for a new far-red-emitting phosphor Ca3-6y(NaLu)3yLiSbO6:Mn4+ to achieve high quantum efficiency and superb thermal stability

The discovery of Mn4+-doped red phosphors with a high quantum efficiency (QE) and good thermal stability is of great interest for plant cultivation lighting. Here, for the first time, a new highly efficient and thermally stable far-red-emitting phosphor Ca3-6y(NaLu)3yLiSbO6:Mn4+ (CNULS:Mn4+) is repo...

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Autores principales:	Zhiyuan Li, Xuhui Zhang, Niansi Fan, Rui Guo, Eric H. Amador, Qianqian Gao, Hongmei Yu, Huibin Zheng, Lan Luo, Li Wang, Yuhua Xiong, Wei Chen
Formato:	article
Lenguaje:	EN
Publicado:	Elsevier 2021
Materias:	Red phosphor Ca3LiSbO6:Mn4+ Chemical unit co-substitution Quantum efficiency Luminescence properties Plant cultivation lighting Materials of engineering and construction. Mechanics of materials TA401-492
Acceso en línea:	https://doaj.org/article/6ce09f57f6094f9db821c245d94fde71
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spelling	oai:doaj.org-article:6ce09f57f6094f9db821c245d94fde712021-12-02T05:03:35ZChemical unit co-substitution for a new far-red-emitting phosphor Ca3-6y(NaLu)3yLiSbO6:Mn4+ to achieve high quantum efficiency and superb thermal stability2590-049810.1016/j.mtadv.2021.100193https://doaj.org/article/6ce09f57f6094f9db821c245d94fde712021-12-01T00:00:00Zhttp://www.sciencedirect.com/science/article/pii/S2590049821000631https://doaj.org/toc/2590-0498The discovery of Mn4+-doped red phosphors with a high quantum efficiency (QE) and good thermal stability is of great interest for plant cultivation lighting. Here, for the first time, a new highly efficient and thermally stable far-red-emitting phosphor Ca3-6y(NaLu)3yLiSbO6:Mn4+ (CNULS:Mn4+) is reported. When a far-red-emitting phosphor Ca3LiSbO6:Mn4+ (CLS:Mn4+) was prepared via the solid-state reaction method, its maximum internal and external QEs are only 39.5% and 23.1%, respectively. Through the chemical unit co-substitution of [Na+−Lu3+] for [Ca2+−Ca2+] in CLS:Mn4+, its luminescence properties can be improved tremendously and the internal and external QEs for the substitution amount of y = 3% are as high as 80.1% and 47.4%, respectively. The large luminescence enhancement is attributed to the increase of structural rigidity induced by lattice contraction. The CNULS:Mn4+ phosphor exhibits excellent thermal stability with the emission intensity at 423 K remaining 87% of the value at 298 K. The LED device fabricated with the CNULS:Mn4+ (y = 3%) phosphor can produce bright and stable far-red emission, which matches well with the absorption spectrum of phytochrome PFR. These results suggest that the CNULS:Mn4+ phosphor could be a promising far-red-emitting converter for plant growth as well as solid-state lighting.Zhiyuan LiXuhui ZhangNiansi FanRui GuoEric H. AmadorQianqian GaoHongmei YuHuibin ZhengLan LuoLi WangYuhua XiongWei ChenElsevierarticleRed phosphorCa3LiSbO6:Mn4+Chemical unit co-substitutionQuantum efficiencyLuminescence propertiesPlant cultivation lightingMaterials of engineering and construction. Mechanics of materialsTA401-492ENMaterials Today Advances, Vol 12, Iss , Pp 100193- (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Red phosphor Ca3LiSbO6:Mn4+ Chemical unit co-substitution Quantum efficiency Luminescence properties Plant cultivation lighting Materials of engineering and construction. Mechanics of materials TA401-492
spellingShingle	Red phosphor Ca3LiSbO6:Mn4+ Chemical unit co-substitution Quantum efficiency Luminescence properties Plant cultivation lighting Materials of engineering and construction. Mechanics of materials TA401-492 Zhiyuan Li Xuhui Zhang Niansi Fan Rui Guo Eric H. Amador Qianqian Gao Hongmei Yu Huibin Zheng Lan Luo Li Wang Yuhua Xiong Wei Chen Chemical unit co-substitution for a new far-red-emitting phosphor Ca3-6y(NaLu)3yLiSbO6:Mn4+ to achieve high quantum efficiency and superb thermal stability
description	The discovery of Mn4+-doped red phosphors with a high quantum efficiency (QE) and good thermal stability is of great interest for plant cultivation lighting. Here, for the first time, a new highly efficient and thermally stable far-red-emitting phosphor Ca3-6y(NaLu)3yLiSbO6:Mn4+ (CNULS:Mn4+) is reported. When a far-red-emitting phosphor Ca3LiSbO6:Mn4+ (CLS:Mn4+) was prepared via the solid-state reaction method, its maximum internal and external QEs are only 39.5% and 23.1%, respectively. Through the chemical unit co-substitution of [Na+−Lu3+] for [Ca2+−Ca2+] in CLS:Mn4+, its luminescence properties can be improved tremendously and the internal and external QEs for the substitution amount of y = 3% are as high as 80.1% and 47.4%, respectively. The large luminescence enhancement is attributed to the increase of structural rigidity induced by lattice contraction. The CNULS:Mn4+ phosphor exhibits excellent thermal stability with the emission intensity at 423 K remaining 87% of the value at 298 K. The LED device fabricated with the CNULS:Mn4+ (y = 3%) phosphor can produce bright and stable far-red emission, which matches well with the absorption spectrum of phytochrome PFR. These results suggest that the CNULS:Mn4+ phosphor could be a promising far-red-emitting converter for plant growth as well as solid-state lighting.
format	article
author	Zhiyuan Li Xuhui Zhang Niansi Fan Rui Guo Eric H. Amador Qianqian Gao Hongmei Yu Huibin Zheng Lan Luo Li Wang Yuhua Xiong Wei Chen
author_facet	Zhiyuan Li Xuhui Zhang Niansi Fan Rui Guo Eric H. Amador Qianqian Gao Hongmei Yu Huibin Zheng Lan Luo Li Wang Yuhua Xiong Wei Chen
author_sort	Zhiyuan Li
title	Chemical unit co-substitution for a new far-red-emitting phosphor Ca3-6y(NaLu)3yLiSbO6:Mn4+ to achieve high quantum efficiency and superb thermal stability
title_short	Chemical unit co-substitution for a new far-red-emitting phosphor Ca3-6y(NaLu)3yLiSbO6:Mn4+ to achieve high quantum efficiency and superb thermal stability
title_full	Chemical unit co-substitution for a new far-red-emitting phosphor Ca3-6y(NaLu)3yLiSbO6:Mn4+ to achieve high quantum efficiency and superb thermal stability
title_fullStr	Chemical unit co-substitution for a new far-red-emitting phosphor Ca3-6y(NaLu)3yLiSbO6:Mn4+ to achieve high quantum efficiency and superb thermal stability
title_full_unstemmed	Chemical unit co-substitution for a new far-red-emitting phosphor Ca3-6y(NaLu)3yLiSbO6:Mn4+ to achieve high quantum efficiency and superb thermal stability
title_sort	chemical unit co-substitution for a new far-red-emitting phosphor ca3-6y(nalu)3ylisbo6:mn4+ to achieve high quantum efficiency and superb thermal stability
publisher	Elsevier
publishDate	2021
url	https://doaj.org/article/6ce09f57f6094f9db821c245d94fde71
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Chemical unit co-substitution for a new far-red-emitting phosphor Ca3-6y(NaLu)3yLiSbO6:Mn4+ to achieve high quantum efficiency and superb thermal stability

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