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

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 Sm 3+ -activated KNa 4 B 2 P 3 O 13 (KNBP) powder phase. Its particle morphology, photoluminescence...

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Bibliographic Details
Published in:Journal of advanced ceramics Vol. 10; no. 5; pp. 1072 - 1081
Main Authors: Fang, Zhenyu, Yang, Dan, Zheng, Youkui, Song, Jialiang, Yang, Tongsheng, Song, Ruitong, Xiang, Yuefei, Zhu, Jing
Format: Journal Article
Language:English
Published: Beijing Tsinghua University Press 01.10.2021
Springer
Subjects:
Alkali metals
Boron
Ceramics
Characterization and Evaluation of Materials
Chemistry and Materials Science
Color temperature
Composites
Efficiency
Fourier transforms
Glass
Light emitting diodes
Luminescence
Materials Science
Morphology
Nanotechnology
Natural Materials
Phosphors
Photoluminescence
Powders
Quenching
Rare earth elements
Reagents
Research Article
Samarium
Spectrum analysis
Structural Materials
Thermal stability
Ultraviolet radiation
White light
P
B
KNBP
luminescence
thermostability
concentration quenching
Sm
KNa
O
ISSN:2226-4108, 2227-8508
Online Access:Get full text
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Summary: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 Sm 3+ -activated KNa 4 B 2 P 3 O 13 (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 4 G 5/2 → 6 H J/2 ( J = 5, 7, 9) transitions of Sm 3+ . 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.
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ISSN:2226-4108
2227-8508
DOI:10.1007/s40145-021-0492-z