CsPbBr3/Si3N4复合材料制备及发光性能

徐范范; 聂文东; 尧利钦; 何盛安; 陈广; 叶信宇

doi:10.37188/CJL.20210085

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CsPbBr₃/Si₃N₄复合材料制备及发光性能

材料合成及性能 | 更新时间：2021-06-18

- CsPbBr₃/Si₃N₄复合材料制备及发光性能
  增强出版
- Preparation and Luminescent Properties of CsPbBr₃/Si₃N₄ Composite
- 发光学报 2021年42卷第6期页码：829-837
- 作者机构：
  
  1.江西理工大学材料化学冶金学部, 江西赣州　 341000
  2.江西理工大学稀土学院, 江西赣州　 341000
  3.国家离子型稀土资源高效开发利用工程技术研究中心, 江西赣州　 341000
  4.江西省稀土发光材料与器件重点实验室, 江西赣州　 341000
- 作者简介：
  
  [ "徐范范(1996-)，女，山西长治人，硕士研究生，2018年于运城学院获得学士学位，主要从事全无机钙钛矿量子点CsPbBr3的合成及稳定性提升的研究。E-mail: 1522638328@qq.com" ]
  [ "叶信宇(1980-)，男，安徽桐城人，博士，教授，博士研究生导师，2008年于北京有色研究总院获得博士学位，主要从事稀土发光材料及相图热力学计算相关的研究。E-mail:xinyye@yahoo.com", "青年编委介绍:", "叶信宇，教授/博士研究生导师，主要从事稀土发光材料及相图热力学计算相关工作。近年来，主持了国家自然科学基金、863课题子项、国家工信部项目等在内的纵横向课题30余项，以一作或通讯作者在ACS AMI,J. Mater. Chem. C,J. Euro. Ceram. So.,Ceram. Inter.等国际权威刊物上发表SCI论文49篇，其中J. Mater. Chem. C,Dalton Trans. J. Am. Ceram. Soc.封面论文3篇。已出版《稀土元素化学》研究生教材一部;授权国家专利11项。相关研究获得“江西省科学技术进步二等奖”、“中国有色金属工业科学技术二等奖”等奖项。入选江西省百千万工程人才、青年井冈学者，并获江西省杰出青年人才资助计划支持。" ]
- 基金信息：
  
  国家自然科学基金(51962005);江西省自然科学基金(20192BAB206010);江西省井冈市青年学者奖励计划([2018]82)
- DOI：10.37188/CJL.20210085
  中图分类号： O482.31
- 纸质出版日期：2021-06-01，
  
  收稿日期：2021-03-11，
  
  修回日期：2021-03-24，
- 稿件说明：
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徐范范, 聂文东, 尧利钦, 等. CsPbBr₃/Si₃N₄复合材料制备及发光性能[J]. 发光学报, 2021,42(6):829-837.

FAN-FAN XU, WEN-DONG NIE, LI-QIN YAO, et al. Preparation and Luminescent Properties of CsPbBr₃/Si₃N₄ Composite. [J]. Chinese journal of luminescence, 2021, 42(6): 829-837.
徐范范, 聂文东, 尧利钦, 等. CsPbBr₃/Si₃N₄复合材料制备及发光性能[J]. 发光学报, 2021,42(6):829-837. DOI： 10.37188/CJL.20210085.

FAN-FAN XU, WEN-DONG NIE, LI-QIN YAO, et al. Preparation and Luminescent Properties of CsPbBr₃/Si₃N₄ Composite. [J]. Chinese journal of luminescence, 2021, 42(6): 829-837. DOI： 10.37188/CJL.20210085.

摘要

近年来，钙钛矿量子点CsPb

(

=Cl

I)稳定性较差的问题引起了广泛关注。本文在室温下合成了稳定的CsPbBr

/Si

绿色荧光粉并将其应用于白光发光二极管(WLEDs)。通过X射线衍射(XRD)、扫描电子显微镜(SEM)、能谱仪(EDS)、激发和发射光谱(PL、PLE)等分析测试手段对CsPbBr

量子点和CsPbBr

/Si

荧光粉的结构、形貌、元素组成及光谱特性等进行了分析对比。实验结果表明，CsPbBr

/Si

绿色荧光粉的热稳定性、水稳定性、色稳定性均得到了显著提升。80 ℃时CsPbBr

/Si

荧光粉的发光强度能保持初始发光强度的87.4%，水中浸没120 min后发光强度能保持初始发光强度的75.5%。CsPbBr

/Si

复合材料的量子效率则由CsPbBr

量子点粉体的15.4%提升至35.4%。将CsPbBr

/Si

复合材料与K

SiF

∶Mn

红色荧光粉、InGaN基蓝光LED芯片封装制得的WLED器件色域为113.4% NTSC，流明效率达49.4 lm/W。

Abstract

In recent years

the poor stability of perovskite quantum dots CsPb

(

=Cl

I) has attracted extensive attention. In this paper

we synthesized stable CsPbBr

/Si

green phosphors at room temperature and applied to white light emitting diodes(WLEDs). The structure

morphology

element composition and luminescent properties of CsPbBr

and CsPbBr

/Si

phosphors were investigated by X-ray diffraction(XRD)

scanning electron microscopy(SEM)

energy dispersive spectrometer(EDS)

excitation and emission spectra(PL

PLE). The thermal stability

water and color stability of CsPbBr

/Si

green phosphor were obviously improved. The emission intensity of CsPbBr

/Si

phosphor can maintain 87.4% of the initial emission intensity at 80 ℃

and maintain 75.5% of the initial emission intensity after being immersed in deionized water for 120 min. The quantum efficiency of CsPbBr

/Si

composite is increased from 15.4% of CsPbBr

quantum dots powder to 35.4%. By packing the CsPbBr

/Si

phosphor with K

SiF

∶Mn

red phosphor and InGaN based blue LED chip

the color gamut of the WLED device is 113.4% NTSC and the luminous efficiency is 49.4 lm/W.

关键词

钙钛矿量子点绿色荧光粉稳定性

Keywords

perovskite quantum dotsgreen phosphorstability

references

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