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Fan J, Song H, Huang W, Zhang J, Wu L, Zhou C, Wu ZC, Zhang X. Wide-band excited and deep-red sensitized Mn 2+ emission from an NaSrSc(BO 3) 2:Eu 2+,Mn 2+ phosphor with vanished Eu 2+ emission. Dalton Trans 2024. [PMID: 38258948 DOI: 10.1039/d3dt03884j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2024]
Abstract
It is of great importance to develop new broadband red phosphors since they have possible applications like plant cultivation, indoor lighting and non-destructive sensing. Herein, we report a series of Eu2+, Mn2+ activated NaSrSc(BO3)2 phosphors via a conventional solid-state reaction route. It has been found that both Mn2+ and Eu2+ solo-doped NaSrSc(BO3)2 show weak or no luminescence, while Eu2+, Mn2+ co-doped NaSrSc(BO3)2 exhibits wide-band absorption and intense deep-red emission at 680 nm with color purity of 89%. Analysis of the absorption, excitation and emission spectra of Eu2+, Mn2+ solo- and co-doped NaSrSc(BO3)2 indicates that this deep-red broadband emission originates from Eu2+ sensitization of the octahedron Mn2+ 4T1-6A1 transition. It was found that the photoionization process led by energetic similarity of the host band-gap and the Eu2+ lowest 5d excited state was mainly responsible for the vanished luminescence of Eu2+. The values of internal quantum efficiency (IQE) and absorption efficiency (AE) for the optimal NSSO:0.007Eu2+,0.05Mn2+ sample are 24.5% and 61.8%, respectively. This work could provide new insights into exploring novel Mn-activated deep-red luminescent materials.
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Affiliation(s)
- Jiaqi Fan
- Key Laboratory of Drug Metabolism Research and Evaluation of the State Drug Administration, Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou 510515, China.
| | - Hongji Song
- Key Laboratory of Optic-electric Sensing and Analytical Chemistry for Life Science, Ministry of Education, Key Laboratory of Biochemical Analysis, Shandong Province, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao 266042, China.
| | - Wenjing Huang
- Key Laboratory of Drug Metabolism Research and Evaluation of the State Drug Administration, Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou 510515, China.
| | - Jiahui Zhang
- Key Laboratory of Drug Metabolism Research and Evaluation of the State Drug Administration, Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou 510515, China.
| | - Lingran Wu
- Key Laboratory of Drug Metabolism Research and Evaluation of the State Drug Administration, Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou 510515, China.
| | - Chunyan Zhou
- College of Pharmaceutical Science, Guangxi Medical University, Nanning 530021, China.
| | - Zhan-Chao Wu
- Key Laboratory of Optic-electric Sensing and Analytical Chemistry for Life Science, Ministry of Education, Key Laboratory of Biochemical Analysis, Shandong Province, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao 266042, China.
| | - Xinguo Zhang
- Key Laboratory of Drug Metabolism Research and Evaluation of the State Drug Administration, Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou 510515, China.
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