Preparation and Luminescent Properties of Sr2MgAl22O36∶Mn4+ Phosphor-in-glass for Plant Growth LED

Mao-lin YANG; Jun-li ZHENG; Li-ping YU; Shi-xun LIAN; Wen-li ZHOU

doi:10.37188/CJL.20210022

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Preparation and Luminescent Properties of Sr₂MgAl₂₂O₃₆∶Mn⁴⁺ Phosphor-in-glass for Plant Growth LED

Luminescence Applications and Interdisciplinary Fields | 更新时间：2021-05-20

- Preparation and Luminescent Properties of Sr₂MgAl₂₂O₃₆∶Mn⁴⁺ Phosphor-in-glass for Plant Growth LED
- Chinese Journal of Luminescence Vol. 42, Issue 5, Pages: 717-723(2021)
- 作者机构：
  
  1.湖南师范大学　化学化工学院，湖南　长沙　 410081
- 作者简介：
- 基金信息：
  
  the National Key Research and Development Program of China(2016YFB0302403);National Natural Science Foundation of China(21501058)
- DOI：10.37188/CJL.20210022
  CLC：
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Mao-lin YANG, Jun-li ZHENG, Li-ping YU, et al. Preparation and Luminescent Properties of Sr₂MgAl₂₂O₃₆∶Mn⁴⁺ Phosphor-in-glass for Plant Growth LED. [J]. Chinese Journal of Luminescence 42(5):717-723(2021)
DOI：

Mao-lin YANG, Jun-li ZHENG, Li-ping YU, et al. Preparation and Luminescent Properties of Sr₂MgAl₂₂O₃₆∶Mn⁴⁺ Phosphor-in-glass for Plant Growth LED. [J]. Chinese Journal of Luminescence 42(5):717-723(2021) DOI： 10.37188/CJL.20210022.

摘要

采用两步烧结法低温制备了Sr,2,MgAl,22,O,36,∶Mn,4+,-(SiO,2,-Al,2,O,3,-ZnO-BaO)荧光玻璃(SMA∶Mn,4+,-PiG)。通过X射线衍射、扫描电镜、光致激发和发射光谱、荧光衰减曲线等手段对其物相、成分与发光性能进行了研究。实验结果表明，形成PiG后,SMA∶Mn,4+,荧光粉的物相和元素组成保持不变。不同SAM∶Mn,4+,含量的PiG样品在328 nm光激发下，在661 nm处均显示强的发射带，归属于荧光粉中Mn,4+,的,2,E→,4,A,2,跃迁，发光光谱与植物光敏色素的红区吸收光谱匹配良好。随着荧光粉含量的增加,SAM∶Mn,4+,-PiG的发光强度逐渐增大。15%SMA∶Mn,4+,-PiG样品的内、外量子效率分别为26%和20%，低于SMA∶Mn,4+,荧光粉的59%和40%。相比于SMA∶Mn,4+,荧光粉，荧光玻璃的吸收效率和热稳定性略有提高。通过与高功率紫外芯片封装,SMA∶Mn,4+,-PiG红光LED器件在100 mA驱动电流下展现了最高的电致发光强度。

Abstract

Sr,2,MgAl,22,O,36,∶Mn,4+,-(SiO,2,-Al,2,O,3,-ZnO-BaO-B,2,O,3,) phosphor in glass(SMA∶Mn,4+,-PiG) was prepared by a two-step co-sintering technology at low temperature. The phase, composition and luminescent properties of PiG samples were investigated by X-ray diffraction(XRD), scanning electron microscope(SEM), excitation and photoluminescence spectra, fluorescence decay curve,etc,. Experimental results show that the phase and elemental composition of SMA∶Mn,4+, phosphor were well preserved after forming PiG. Under 328 nm excitation, PiG samples with different SAM∶Mn,4+, content all showed strong emission band peaked at 661 nm due to,2,E→,4,A,2, transition of Mn,4+, ions. The emission spectrum of SMA∶Mn,4+,-PiG well matches absorption spectra of plant phytochromes. With the increase of phosphor content, the photoluminescence intensity of SAM∶Mn,4+,-PiG gradually increases. Internal quantum efficiency(IQE) and external quantum efficiency(EQE) of 15% SMA∶Mn,4+,-PiG samples are 26% and 20%, respectively, which are lower than 59% and 40% of SMA∶Mn,4+, phosphor. Compared with SMA∶Mn,4+, phosphor, absorption efficiency and thermal stability of SAM∶Mn,4+,-PiG are slightly enhanced. With packaging with high-power UV chip, SMA∶Mn,4+,-PiG red LED device exhibits high electroluminescence intensity, and the highest value is measured at 100 mA.

关键词

荧光玻璃植物生长Mn4+发光二极管

Keywords

phosphor-in-glassplant growthMn4+LED

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College of Chemistry and Chemical Engineering， Hunan Normal University， Changsha 410081， China）；* ZHOU Wen-li， E-mail： chemwlzhou@hunnu.edu

School of Materials Science and Engineering， Zhengzhou University（Luoyang Campus）

Key Laboratory of Advanced Energy Catalytic and Functional Material Preparation of Zhengzhou City， School of Materials;Science and Engineering， Zhengzhou University

School of Chemistry， Chemical and Environmental Engineering， Weifang University

School of Applied Science， Taiyuan University of Science and Technology

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