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Optical properties of yellow-emitting Sr3LaNb3O12:Dy3+ phosphors with an abnormal thermal quenching for white light-emitting diode applications

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Abstract

In this study, a series of Sr3LaNb3O12 phosphors doped with Dy3+ ions was prepared by a high-temperature solid-state reaction. The crystal structure, phase purity, particle morphology, photoluminescence (PL) properties, and thermal stability of the phosphors were described. And the Sr3LaNb3O12 crystal symmetry is hexagonal. Under the optimal excitation wavelength of 352 nm, the three prominent emission peaks of the Sr3LaNb3O12:Dy3+ focused on 483 nm (4F9/2-6H15/2), 575 nm (4F9/2-6H13/2), and 668 nm (4F9/2-6H11/2). The optimal Dy3+-doped concentration in the Sr3LaNb3O12 phosphor was 0.05 mol. The phosphor had an abnormal thermal quenching phenomenon and activation energy (Ea = 0.29 eV). The prepared white light-emitting diode (w-LED) had a low correlation color temperature of 4162 K, chromaticity coordinates (0.365, 0.368), and the color rendering index 91. The feasibility of the Sr3LaNb3O12:Dy3+ luminescent material for w-LED was verified by its performance.

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The data that support the findings of this study are available on request from the corresponding author. The data are not publicly available due to privacy orethical restrictions.

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Funding

This work was supported by the Undergraduate Innovation Fund of Northwest A&F University, China (202210712058, 202210712050, S202210712394, 202110712190, 202110712188, S202110712707, S202010712314, S202010712006), the Scientific and Technological Plan of Guangdong Province, China (No. 2019B090905005), National Natural Science Foundation of China (No. 11804265), and Home for researchers (www.home-for-researchers.com), China.

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  1. Yuchen Zhang and Zhikai Liang contributed equally to this work.

Authors and Affiliations

  1. College of Science, Northwest A&F University, Yangling, 712100, Shaanxi, People’s Republic of China

    Yuchen Zhang, Weixian Wang, Yifang Lin, Jingfei Wang, Daomiao He, Jinhui Liu & Dan Zhang

  2. School of Chemistry and Environmental Science, Xiangnan University, Chenzhou, 423043, Hunan, People’s Republic of China

    Zhikai Liang & Bin Deng

  3. College of Chemistry & Pharmacy, Northwest A&F University, Yangling, 712100, Shaanxi, People’s Republic of China

    Rong Tang, Zhong Zhang & Ruijin Yu

  4. SCNU Qingyuan Institute of Science and Technology Innovation Co., Ltd, Qingyuan, 511517, Guangdong, People’s Republic of China

    Lingzhi Zhao

  5. Hunan Provincial Key Laboratory of Xiangnan Rare-Precious Metals Compounds Research and Application, Xiangnan University, Chenzhou, 423043, Hunan, People’s Republic of China

    Zhikai Liang & Bin Deng

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  1. Yuchen Zhang
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Contributions

All authors contributed to the study conception and design. Material preparation, data collection, and analysis were performed by Yuchen Zhang, Zhikai Liang, Weixian Wang, Yifang Lin, Rong Tang, Jingfei Wang, Daomiao He, Jinhui Liu, Zhong Zhang, Lingzhi Zhao, Bin Deng, Dan Zhang, Ruijin Yu. The first draft of the manuscript was written by Yuchen Zhang and all authors commented on previous versions of the manuscript. All authors read and approved the final manuscript.

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Correspondence to Bin Deng or Dan Zhang.

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I certify that the Yuchen Zhang and other co-authors of the article “Optical properties of yellow-emitting Sr3LaNb3O12:Dy3+ phosphors with an abnormal thermal quenching for w-LED applications” have no conflict of interest, financial or otherwise.

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Zhang, Y., Liang, Z., Wang, W. et al. Optical properties of yellow-emitting Sr3LaNb3O12:Dy3+ phosphors with an abnormal thermal quenching for white light-emitting diode applications. J Mater Sci: Mater Electron 33, 26619–26632 (2022). https://doi.org/10.1007/s10854-022-09374-4

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