Bi4BPO10:Dy3+: a single-phase white-emitting phosphor for light-emitting diodes. (December 2022)

• Record Type: Journal Article
• Authors: Zheng, Youkui; Li, Hong; Yang, Tongsheng; Li, Junpeng; Yang, Shuqing; Zhu, Jing
• Is Part Of: Materials today chemistry. Volume 26(2022)
• Publication Date: 2022-12
• Subjects: Borophosphate -- Content quenching -- Photoluminescence -- Thermostability -- Dysprosium; Chemistry -- Periodicals; Materials -- Research -- Periodicals; Materials science -- Periodicals; Chemistry; Materials -- Research; Electronic journals; Periodicals; 660.282
• DOI: 10.1016/j.mtchem.2022.101199
• Languages: English
• ISSNs: 2468-5194

Abstract

Abstract: We reported a single-phase white-emitting phosphor Bi4 BPO10 (BBP):Dy 3+ developed via a solid-state reaction route. Dy 3+ activator is introduced into the BBP host by replacing Bi 3+ ion with optimal content of 7 mol%. Under 390 nm excitation, due to the suitable combination of characteristic yellow and blue-emitting from Dy 3+, the phosphor generates white light. The working temperature-dependent photoluminescence data confirms that it owns a satisfactory thermostability. Finally, the representative BBP:0.07Dy 3+ phosphor-converted WLED device is pumped by a n-NV chip to display white light with a CCT of 3731 K. The report indicates that the studied phosphor could be potentially employed for solid-state white lighting source. Graphical abstract: Image 1 Highlights: Bi4 BPO10 :Dy 3+ emits white light due to appropriate Y/B emission ratio. Bi4 BPO10 :Dy 3+ has highly luminescent thermal stability. Warm white light is realized using Bi4 BPO10 :Dy 3+ -converted WLED with low CCT.