Effect of Li+ doping on the luminescence performance of a novel KAlSiO4:Tb3+ green-emitting phosphor

Abstract A new green-emitting phosphor, KAlSiO4:1.5 mol% Tb3+, x mol% Li+, was prepared via a high-temperature solid-phase method, and its crystal structure, diffuse reflectance spectrum, and luminescence were studied. The results show that the Li+ doping shifts the strongest diffraction peak to a h...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Reziwanguli Yantake, Muyasier Kaiheriman, Taximaiti Yusufu, Aierken Sidike
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/45a25df26de248e58ba5712c13548666
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:doaj.org-article:45a25df26de248e58ba5712c13548666
record_format	dspace
spelling	oai:doaj.org-article:45a25df26de248e58ba5712c135486662021-12-02T11:35:58ZEffect of Li+ doping on the luminescence performance of a novel KAlSiO4:Tb3+ green-emitting phosphor10.1038/s41598-021-84220-x2045-2322https://doaj.org/article/45a25df26de248e58ba5712c135486662021-03-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-84220-xhttps://doaj.org/toc/2045-2322Abstract A new green-emitting phosphor, KAlSiO4:1.5 mol% Tb3+, x mol% Li+, was prepared via a high-temperature solid-phase method, and its crystal structure, diffuse reflectance spectrum, and luminescence were studied. The results show that the Li+ doping shifts the strongest diffraction peak to a high angle direction, reducing grain size by 11.4%. The entry of Li2CO3 improves the luminescence performance of KAlSiO4:1.5 mol% Tb3+. At a Li+ concentration of 1.5 mol%, the sample has strong absorption in the ultraviolet light range from 250 to 400 nm. The luminous intensity of the sample at 550 nm approximately quadruples after Li+ doping. Additionally, the colour purity of the sample and the internal quantum yield increase to 83.3% and 42%, respectively. The sample changes colour with time when exposed to air without an obvious fading phenomenon. The emission intensity at 200 °C is 95.1% of its value at room temperature, indicating that the phosphor has excellent thermal stability when x = 1.5. These results show the feasibility of using the silicate phosphor for generating the green light component of white light-emitting diodes for solid-state lighting.Reziwanguli YantakeMuyasier KaiherimanTaximaiti YusufuAierken SidikeNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-10 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Reziwanguli Yantake Muyasier Kaiheriman Taximaiti Yusufu Aierken Sidike Effect of Li+ doping on the luminescence performance of a novel KAlSiO4:Tb3+ green-emitting phosphor
description	Abstract A new green-emitting phosphor, KAlSiO4:1.5 mol% Tb3+, x mol% Li+, was prepared via a high-temperature solid-phase method, and its crystal structure, diffuse reflectance spectrum, and luminescence were studied. The results show that the Li+ doping shifts the strongest diffraction peak to a high angle direction, reducing grain size by 11.4%. The entry of Li2CO3 improves the luminescence performance of KAlSiO4:1.5 mol% Tb3+. At a Li+ concentration of 1.5 mol%, the sample has strong absorption in the ultraviolet light range from 250 to 400 nm. The luminous intensity of the sample at 550 nm approximately quadruples after Li+ doping. Additionally, the colour purity of the sample and the internal quantum yield increase to 83.3% and 42%, respectively. The sample changes colour with time when exposed to air without an obvious fading phenomenon. The emission intensity at 200 °C is 95.1% of its value at room temperature, indicating that the phosphor has excellent thermal stability when x = 1.5. These results show the feasibility of using the silicate phosphor for generating the green light component of white light-emitting diodes for solid-state lighting.
format	article
author	Reziwanguli Yantake Muyasier Kaiheriman Taximaiti Yusufu Aierken Sidike
author_facet	Reziwanguli Yantake Muyasier Kaiheriman Taximaiti Yusufu Aierken Sidike
author_sort	Reziwanguli Yantake
title	Effect of Li+ doping on the luminescence performance of a novel KAlSiO4:Tb3+ green-emitting phosphor
title_short	Effect of Li+ doping on the luminescence performance of a novel KAlSiO4:Tb3+ green-emitting phosphor
title_full	Effect of Li+ doping on the luminescence performance of a novel KAlSiO4:Tb3+ green-emitting phosphor
title_fullStr	Effect of Li+ doping on the luminescence performance of a novel KAlSiO4:Tb3+ green-emitting phosphor
title_full_unstemmed	Effect of Li+ doping on the luminescence performance of a novel KAlSiO4:Tb3+ green-emitting phosphor
title_sort	effect of li+ doping on the luminescence performance of a novel kalsio4:tb3+ green-emitting phosphor
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/45a25df26de248e58ba5712c13548666
work_keys_str_mv	AT reziwanguliyantake effectoflidopingontheluminescenceperformanceofanovelkalsio4tb3greenemittingphosphor AT muyasierkaiheriman effectoflidopingontheluminescenceperformanceofanovelkalsio4tb3greenemittingphosphor AT taximaitiyusufu effectoflidopingontheluminescenceperformanceofanovelkalsio4tb3greenemittingphosphor AT aierkensidike effectoflidopingontheluminescenceperformanceofanovelkalsio4tb3greenemittingphosphor
_version_	1718395817165848576

Effect of Li+ doping on the luminescence performance of a novel KAlSiO4:Tb3+ green-emitting phosphor

Ejemplares similares