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Wu X, Xu Y, Yin S, Zhong C, Zhang X, Zhou L, You H. An efficient blue-violet phosphor: an advanced material designed for high-quality full-spectrum lighting. Dalton Trans 2024; 53:4564-4573. [PMID: 38349186 DOI: 10.1039/d3dt04096h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/06/2024]
Abstract
A highly efficient phosphor with exceptional luminescence properties is crucial for achieving high-quality solid-state white-light illumination. Here, this paper presents a groundbreaking discovery, an innovative blue-violet emitting Ba1.31Sr3.69(BO3)3Cl:Ce3+ (BSBCl:Ce3+) phosphor designed with remarkable thermal stability and quantum efficiency for full spectrum white light-emitting diodes (WLEDs). By employing a high-temperature solid-phase method, we synthesized various BSBCl:xCe3+ phosphors with different Ce3+ doping concentrations. Remarkably, BSBCl:0.03Ce3+ displays a broad excitation band from 250 nm to 400 nm, rendering it compatible with commercial near-ultraviolet (UV) LED chips. Under 330 nm excitation, this phosphor emits blue light with an astonishing 88.2% internal quantum efficiency (IQE) and an impressive 60.9% external quantum efficiency (EQE). Notably, when employed in the temperature range of 298-473 K, the synthesized BSBCl:0.03Ce3+ phosphor exhibits exceptional color stability and thermal stability (I423 K/I298 K = 83%). Utilizing BSBCl:0.03Ce3+ as the blue-violet emitting component in the fabrication of WLED devices has demonstrated significant advancements in the color rendering index. These findings underscore the potential of BSBCl:Ce3+ phosphors for a wide range of applications in health-oriented indoor illumination.
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Affiliation(s)
- Xiudi Wu
- State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, P. R. China.
- University of Science and Technology of China, Hefei 230026, P. R. China
| | - Yonghui Xu
- State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, P. R. China.
- University of Science and Technology of China, Hefei 230026, P. R. China
| | - Shuwen Yin
- State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, P. R. China.
| | - Chuansheng Zhong
- State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, P. R. China.
- University of Science and Technology of China, Hefei 230026, P. R. China
| | - Xibao Zhang
- State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, P. R. China.
- University of Science and Technology of China, Hefei 230026, P. R. China
| | - Liang Zhou
- State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, P. R. China.
- University of Science and Technology of China, Hefei 230026, P. R. China
| | - Hongpeng You
- State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, P. R. China.
- University of Science and Technology of China, Hefei 230026, P. R. China
- Ganjiang Innovation Academy, Chinese Academy of Sciences, Ganzhou 341000, China
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Wang T, Yang H, Wang Z, Li P. Luminescence Properties and Energy Transfer in SrLa2Sc2O7 Co-Doped with Bi 3+/M (M = Eu 3+, Mn 4+, or Yb 3+). MATERIALS (BASEL, SWITZERLAND) 2022; 15:8040. [PMID: 36431524 PMCID: PMC9695800 DOI: 10.3390/ma15228040] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/20/2022] [Revised: 11/07/2022] [Accepted: 11/09/2022] [Indexed: 06/16/2023]
Abstract
Series of Eu3+/Mn4+/Yb3+-doped SrLa2Sc2O7:Bi3+ (SLSO: Bi3+) were synthesized by a high-temperature solid-state method, and the energy transfer of Bi3+→Eu3+/Mn4+/Yb3+ was observed. Under ultraviolet radiation, a 550 nm emission peak was observed, which is attributed to Bi3+ occupying the Sr2+/La3+ sites. Additionally, the other peaks were found to be 615, 707, and 980 nm, which are assigned to the Re3+ (Eu3+ and Yb3+) and Mn4+ occupying two different cationic sites. An obvious energy transfer (ET) from Bi3+ to Eu3+/Mn4+/Yb3+ was observed, and the tunable color, emitting from yellow to red, was obtained; the ET efficiency was about 86.2%, 78.6%, and 27.5% in SLSO, respectively. We found that the large overlap area between the emission spectrum of the sensitizer and the excitation spectrum of the activator could produce efficient energy transfer, which provided the idea for designing experiments in the future for some highly efficient energy transfer processes.
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Affiliation(s)
- Tao Wang
- College of Science, China University of Petroleum (East China), Qingdao 266580, China
| | - Huifang Yang
- Hebei Key Laboratory of Optic-Electronic Information and Materials, College of Physics Science & Technology, Hebei University, Baoding 071002, China
| | - Zhijun Wang
- Hebei Key Laboratory of Optic-Electronic Information and Materials, College of Physics Science & Technology, Hebei University, Baoding 071002, China
| | - Panlai Li
- Hebei Key Laboratory of Optic-Electronic Information and Materials, College of Physics Science & Technology, Hebei University, Baoding 071002, China
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Yang N, Zhang Z, Zou L, Chen J, Ni H, Chen P, Shi J, Tong Y. A novel red-emitting phosphor with an unusual concentration quenching effect for near-UV-based WLEDs. Inorg Chem Front 2022. [DOI: 10.1039/d2qi01982e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
An unusual concentration quenching effect is caused by the anisotropic distribution of quenching centers in GdGaTi2O7:Eu3+.
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Affiliation(s)
- Nan Yang
- School of Chemistry, Sun Yat-Sen University, Guangzhou 510006, P. R. China
| | - Ziwang Zhang
- School of Chemistry, Sun Yat-Sen University, Guangzhou 510006, P. R. China
| | - Liyuan Zou
- School of Chemistry, Sun Yat-Sen University, Guangzhou 510006, P. R. China
| | - Jun Chen
- School of Chemistry, Sun Yat-Sen University, Guangzhou 510006, P. R. China
| | - Haiyong Ni
- Guangdong Province Key Laboratory of Rare Earth Development and Application, Institute of Resources Utilization and Rare Earth Development, Guangdong Academy of Sciences, Guangzhou 510651, P. R. China
| | - Pin Chen
- National Supercomputer Center in Guangzhou, School of Computer Science and Engineering, Sun Yat-Sen University, Guangzhou 510006, P. R. China
| | - Jianxin Shi
- School of Chemistry, Sun Yat-Sen University, Guangzhou 510006, P. R. China
| | - Yexiang Tong
- School of Chemistry, Sun Yat-Sen University, Guangzhou 510006, P. R. China
- MOE of the Key Laboratory of Bioinorganic and Synthetic Chemistry, The Key Lab of Low-Carbon Chemistry & Energy Conservation of Guangdong Province, Sun Yat-sen University, Guangzhou 510006, P. R. China
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