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10.3390/ma16020730
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Article

(Sr, Ca)AlSiN3:Eu2+ Phosphor-Doped YAG:Ce3+ Transparent Ceramics as Novel Green-Light-Emitting Materials for White LEDs

by
Qing Yao
1,2,3,*,
Xinyi Pan
1,
Junjie Tian
1,
Zhihang Chen
1,
Hongbin Ji
2 and
Yun Wang
3
1
School of Mechanical Engineering, Nantong University, Nantong 226019, China
2
Nantong Cotton Machinery, Nantong 226300, China
3
School of Mechanical Engineering, Jiangsu University, Zhenjiang 212013, China
*
Author to whom correspondence should be addressed.
Materials 2023, 16(2), 730; https://doi.org/10.3390/ma16020730
Submission received: 20 October 2022 / Revised: 1 January 2023 / Accepted: 6 January 2023 / Published: 11 January 2023
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Abstract

In this work, based on Y3Al5O12:Ce3+ (YAG:Ce3+) transparent ceramic and (Sr, Ca)AlSiN3:Eu2+ phosphors, novel green-light-emitting materials were systematically studied. YAG:Ce3+ transparent ceramics with different doping-concentrations, from 0% to 1% (Sr, Ca)AlSiN3:Eu2+ phosphors, were fabricated by dry pressing and vacuum sintering. The serial phosphor ceramics had 533 nm green-light emission when excited by 460 nm blue light. The PL, PLE, and chromaticity performances were measured, indicating that more of the green-light component was emitted with the increase in doping concentration. The addition of (Sr, Ca)AlSiN3:Eu2+ phosphor increased the green-light wavelength area and improved the quantum yield (QY) of the YAG:Ce3+ ceramic matrix. The phase composition, microstructure, crystal-field structure and phosphor distribution of (Sr, Ca)AlSiN3:Eu2+ phosphor-doped YAG:Ce3+ transparent ceramics were investigated, to explore the microscopic causes of the spectral changes. Impressively, (Sr, Ca)AlSiN3:Eu2+ phosphors were distributed homogeneously, and the pinning effect of phosphor caused the suppression of grain growth. The novel materials could provide an effective strategy for full-spectrum white lighting and displaying applications in the future.
Keywords: YAG:Ce3+ phosphor transparent ceramics; (Sr, Ca)AlSiN3:Eu2+ phosphors; green-light ceramic; spectral regulation; white-light-emitting diode YAG:Ce3+ phosphor transparent ceramics; (Sr, Ca)AlSiN3:Eu2+ phosphors; green-light ceramic; spectral regulation; white-light-emitting diode

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MDPI and ACS Style

Yao, Q.; Pan, X.; Tian, J.; Chen, Z.; Ji, H.; Wang, Y. (Sr, Ca)AlSiN3:Eu2+ Phosphor-Doped YAG:Ce3+ Transparent Ceramics as Novel Green-Light-Emitting Materials for White LEDs. Materials 2023, 16, 730. https://doi.org/10.3390/ma16020730

AMA Style

Yao Q, Pan X, Tian J, Chen Z, Ji H, Wang Y. (Sr, Ca)AlSiN3:Eu2+ Phosphor-Doped YAG:Ce3+ Transparent Ceramics as Novel Green-Light-Emitting Materials for White LEDs. Materials. 2023; 16(2):730. https://doi.org/10.3390/ma16020730

Chicago/Turabian Style

Yao, Qing, Xinyi Pan, Junjie Tian, Zhihang Chen, Hongbin Ji, and Yun Wang. 2023. "(Sr, Ca)AlSiN3:Eu2+ Phosphor-Doped YAG:Ce3+ Transparent Ceramics as Novel Green-Light-Emitting Materials for White LEDs" Materials 16, no. 2: 730. https://doi.org/10.3390/ma16020730

APA Style

Yao, Q., Pan, X., Tian, J., Chen, Z., Ji, H., & Wang, Y. (2023). (Sr, Ca)AlSiN3:Eu2+ Phosphor-Doped YAG:Ce3+ Transparent Ceramics as Novel Green-Light-Emitting Materials for White LEDs. Materials, 16(2), 730. https://doi.org/10.3390/ma16020730

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