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Controlling defects to improve the emission intensity of NaMgBO3:1%Ce3+ blue-cyan phosphor

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Abstract

The luminescence performance of Na0.99+nMg1 − mBO3:1%Ce3+ (m = 0–0.05, n = 0.025–0.04) phosphors were optimized by controlling the defect concentration. Its crystal structure, morphology, and luminescence properties have been investigated. After reducing the Mg content to introduce vacancies, the emission peak position of NaMg1 − mBO3:1%Ce3+ (m = 0–0.05) is located at 464 nm, and the intensity is increased by 21.3%. With the addition of excessive Na2CO3, the luminescence is finally increased by 27.1%. This is mainly contributed to vacancies can play the role in energy transfer, and excessive Na2CO3 acts both as a flux and promotes the formation of defects, thus enhancing luminescence. The mechanism of luminescence intensity enhancement is represented by the energy level transition diagram. All the results show that this phosphor can be used as an excellent blue-cyan phosphor to compensate for the blue-cyan gap, and realize the possibility of full spectrum lighting.

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Acknowledgements

This research did not receive specific funding from any funding agency.

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Authors and Affiliations

  1. State Key Laboratory of Advanced Processing and Recycling of Nonferrous Metals, Lanzhou University of Technology, Lanzhou, 730050, China

    Qizheng Dong, Wenbo Zhang, Binglong Tian & Ling He

  2. School of Materials Science and Engineering, Lanzhou University of Technology, Lanzhou, 730050, China

    Qizheng Dong, Wenbo Zhang, Binglong Tian & Ling He

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  1. Qizheng Dong
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  2. Wenbo Zhang
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  3. Binglong Tian
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  4. Ling He
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Contributions

All authors contributed to the study conception and design. QD: Design article, design experiments and summarize data; WZ: Complete the experiment and test and analyze the obtained samples, article writing; BT: Review the article and propose precise revisions; LH: Collect and analyze literature; All authors read and approved the final manuscript.

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Correspondence to Qizheng Dong.

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Dong, Q., Zhang, W., Tian, B. et al. Controlling defects to improve the emission intensity of NaMgBO3:1%Ce3+ blue-cyan phosphor. J Mater Sci: Mater Electron 33, 15604–15616 (2022). https://doi.org/10.1007/s10854-022-08465-6

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  • DOI: https://doi.org/10.1007/s10854-022-08465-6

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