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Journal of Advanced Ceramics 2021, 10(1): 88-97 https://doi.org/10.1007/s40145-020-0421-6
Research Article | Open Access | Issue | Published: 09 November 2020

Deep-red emitting Mg2TiO4:Mn4+ phosphor ceramics for plant lighting

Show Author's Information Zixin WANGa,  Hui LINa( ),  Dawei ZHANGa,  Yiming SHENa,  Yang LIa,  Ruijin HONGa,  Chunxian TAOa,  Zhaoxia HANa,  Lei CHENb,  Shengming ZHOUc
Engineering Research Center of Optical Instrument and System, Ministry of Education and Shanghai Key Lab of Modern Optical System, University of Shanghai for Science and Technology, No. 516 Jungong Road, Shanghai 200093, China
Department of Pathology, Xinhua Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200093, China
Laboratory of Micro-Nano Optoelectronic Materials and Devices, Key Laboratory of Materials for High-Power Laser, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China
Keywords:
thermal conductivity, optical properties, solid state reaction, ceramic phosphor
Cite this article:
WANG Z, LIN H, ZHANG D, et al. Deep-red emitting Mg2TiO4:Mn4+ phosphor ceramics for plant lighting. Journal of Advanced Ceramics, 2021, 10(1): 88-97. https://doi.org/10.1007/s40145-020-0421-6
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Abstract Full text About this article

In this study, deep-red emitting Mg2TiO4:Mn4+ phosphor ceramics were synthesized by the high temperature solid-state reaction method. The ceramics can be excited by the 465 nm blue light and had a narrow emission with a full width at half maximum (FWMH) value of 31 nm. The peak wavelength was located at 658 nm, which matched the demanded wavelength for photosynthesis. The crystal field strength (Dq) and the Racah parameters (B and C) were estimated by the Tanabe-Sugano diagram. The thermal conductivity of the Mg2Ti(0.999)O4:0.001Mn4+ ceramic was 7.535 W/(m·K) at room temperature, which was one order of magnitude higher than that of the traditional packaging method using the silicone gel. A set of phosphor converted LEDs were fabricated by mounting the phosphor ceramics onto the 460 nm blue LED chips and the CIE coordinates can move from the blue region to the purple light region with the thickness of the ceramic increasing. These results indicated that the Mg2TiO4:Mn4+ phosphor ceramic was suitable for plant lighting when combined with a blue LED chip.


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About this article

Deep-red emitting Mg2TiO4:Mn4+ phosphor ceramics for plant lighting

Show Author's information Zixin WANGa, Hui LINa( ), Dawei ZHANGa, Yiming SHENa, Yang LIa, Ruijin HONGa, Chunxian TAOa, Zhaoxia HANa, Lei CHENb, Shengming ZHOUc
Engineering Research Center of Optical Instrument and System, Ministry of Education and Shanghai Key Lab of Modern Optical System, University of Shanghai for Science and Technology, No. 516 Jungong Road, Shanghai 200093, China
Department of Pathology, Xinhua Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200093, China
Laboratory of Micro-Nano Optoelectronic Materials and Devices, Key Laboratory of Materials for High-Power Laser, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China

Abstract

In this study, deep-red emitting Mg2TiO4:Mn4+ phosphor ceramics were synthesized by the high temperature solid-state reaction method. The ceramics can be excited by the 465 nm blue light and had a narrow emission with a full width at half maximum (FWMH) value of 31 nm. The peak wavelength was located at 658 nm, which matched the demanded wavelength for photosynthesis. The crystal field strength (Dq) and the Racah parameters (B and C) were estimated by the Tanabe-Sugano diagram. The thermal conductivity of the Mg2Ti(0.999)O4:0.001Mn4+ ceramic was 7.535 W/(m·K) at room temperature, which was one order of magnitude higher than that of the traditional packaging method using the silicone gel. A set of phosphor converted LEDs were fabricated by mounting the phosphor ceramics onto the 460 nm blue LED chips and the CIE coordinates can move from the blue region to the purple light region with the thickness of the ceramic increasing. These results indicated that the Mg2TiO4:Mn4+ phosphor ceramic was suitable for plant lighting when combined with a blue LED chip.

Keywords: thermal conductivity, optical properties, solid state reaction, ceramic phosphor

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Publication history
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Acknowledgements
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Publication history

Received: 25 May 2020
Revised: 19 August 2020
Accepted: 04 September 2020
Published: 09 November 2020
Issue date: February 2021

Copyright

© The Author(s) 2020

Acknowledgements

This work was sponsored by Shanghai Pujiang Program (18PJ1408800), Shanghai Science and Technology Innovation Program (19511104600), the National Key Research and Development Program of China (2016YFB1102303), and the International Partnership Program of Chinese Academy of Sciences (181231KYSB20160005).

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