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Research Article | Open Access

NUV-pumped luminescence of thermally stable samarium-activated alkali metal borophosphate phosphor

Zhenyu FANG, Dan YANG, Youkui ZHENG, Jialiang SONG, Tongsheng YANG, Ruitong SONG, Yuefei XIANG, Jing ZHU( )
Key Laboratory of LCR Materials and Devices of Yunnan Province, National Center for International Research on Photoelectric and Energy Materials, School of Materials and Energy, Yunnan University, Kunming 650091, China
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Abstract

Exploring outstanding rare-earth activated inorganic phosphors with good thermostability has always been a research focus for high-power white light-emitting diodes (LEDs). In this study, we report a Sm3+-activated KNa4B2P3O13 (KNBP) powder phase. Its particle morphology, photoluminescence properties, concentration quenching mechanism, thermal quenching mechanism, and chromatic properties are demonstrated. Upon the near-ultraviolet (NUV) irradiation of 402 nm, the powder phase exhibits orange-red visible luminescence performance, originating from typical 4G5/2→6HJ/2 (J = 5, 7, 9) transitions of Sm3+. Importantly, the photoluminescence performance has good thermostability, low correlated color temperature (CCT), and high color purity (CP), indicating its promising application in the NUV-pumped warm white LEDs.

Keywords

KNa4B2P3O13 (KNBP)Sm3+ luminescenceconcentration quenchingthermostability

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Journal of Advanced Ceramics
Volume 10 Issue 5,
October 2021
Pages 1072-1081
DOI: 10.1007/s40145-021-0492-z
Cite this article:
FANG Z, YANG D, ZHENG Y, et al. NUV-pumped luminescence of thermally stable samarium-activated alkali metal borophosphate phosphor. Journal of Advanced Ceramics, 2021, 10(5): 1072-1081. https://doi.org/10.1007/s40145-021-0492-z

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Received: 02 March 2021
Revised: 28 April 2021
Accepted: 03 May 2021
Published: 15 September 2021
© The Author(s) 2021

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