La3Si6N11：Ce3+荧光玻璃陶瓷及其在高功率固态照明中的应用

岳相铭; 林航; 林世盛; 程遥; 徐桔; 王元生

doi:10.37188/CJL.20200232

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La₃Si₆N₁₁：Ce³⁺荧光玻璃陶瓷及其在高功率固态照明中的应用

特邀报告 | 更新时间：2020-12-10

- La₃Si₆N₁₁：Ce³⁺荧光玻璃陶瓷及其在高功率固态照明中的应用
- La₃Si₆N₁₁:Ce³⁺ Luminescent Glass Ceramics Applicable to High-power Solid-state Lighting
- 发光学报 2020年41卷第12期页码：1529-1537
- 作者机构：
  
  1.福州大学化学学院, 福建福州 350108
  2.中国科学院福建物质结构研究所, 中国科学院功能纳米结构设计与组装重点实验室, 福建福州 350002
  3.中国福建光电信息科学与技术创新实验室(闽都创新实验室), 福建福州 350108
- 作者简介：
  
  [ "岳相铭(1997-), 男, 山西忻州人, 硕士研究生, 2018年于太原理工大学获得学士学位, 主要从事光功能玻璃陶瓷的研究。E-mail:yuexiangming@fjirsm.ac.cn" ]
  [ "林航(1983-), 男, 福建福州人, 博士, 研究员, 博士研究生导师, 2011年于中国科学院福建物质结构研究所获得博士学位, 主要从事光功能玻璃陶瓷的研究。E-mail:lingh@fjirsm.ac.cn" ]
  [ "王元生(1961-), 男, 福建福州人, 博士, 研究员, 博士研究生导师, 1989年于中国科学技术大学获得博士学位, 主要从事光功能玻璃陶瓷的研究。E-mail:yswang@fjirsm.ac.cn" ]
- 基金信息：
  
  中科院海西院春苗人才(CMZX-2017-002);国家自然科学基金(11774346);国家自然科学基金(51972303);国家自然科学基金(51872288)
- DOI：10.37188/CJL.20200232
  中图分类号： O482.31
- 收稿：2020-08-03，
  
  录用：2020-8-25，
  
  纸质出版：2020-12
- 稿件说明：
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岳相铭, 林航, 林世盛, 等. La₃Si₆N₁₁：Ce³⁺荧光玻璃陶瓷及其在高功率固态照明中的应用[J]. 发光学报, 2020,41(12):1529-1537.

Xiang-ming YUE, Hang LIN, Shi-sheng LIN, et al. La₃Si₆N₁₁:Ce³⁺ Luminescent Glass Ceramics Applicable to High-power Solid-state Lighting[J]. Chinese Journal of Luminescence, 2020, 41(12): 1529-1537.
岳相铭, 林航, 林世盛, 等. La₃Si₆N₁₁：Ce³⁺荧光玻璃陶瓷及其在高功率固态照明中的应用[J]. 发光学报, 2020,41(12):1529-1537. DOI： 10.37188/CJL.20200232.

Xiang-ming YUE, Hang LIN, Shi-sheng LIN, et al. La₃Si₆N₁₁:Ce³⁺ Luminescent Glass Ceramics Applicable to High-power Solid-state Lighting[J]. Chinese Journal of Luminescence, 2020, 41(12): 1529-1537. DOI： 10.37188/CJL.20200232.

摘要

面向市场对高功率照明的强烈需求，兼具优良光学和热/化学稳定性的全无机荧光玻璃陶瓷正蓬勃发展。本文基于低温共烧技术制备了一种镶嵌La

:Ce

（LSN:Ce）荧光粉的硅基氮化物玻璃陶瓷荧光转换材料。研究表明，共烧时玻璃组分对LSN:Ce荧光粉侵蚀作用较小，荧光粉结构未受明显破坏，因而其荧光特性基本得以保持——量子效率为79%，150℃下荧光积分强度仅下降~14%。构建的高功率白光LED光源在350 mA电流驱动下，光效为54.8 lm/W，色温为5 712 K，显指为70.1，色坐标为（0.328 0，0.369 0）。构建的激光照明光源在0.8 W蓝光激光激发下，光通量为118.48 lm，色温为7 427 K，显指为56.2，色坐标为（0.298 2，0.322 6）。我们推断，在高功率蓝光激光激发时，LSN:Ce荧光玻璃陶瓷中发生了热饱和与光饱和现象。经进一步的材料组分、制备工艺以及器件结构优化，LSN:Ce荧光玻璃陶瓷可望应用于高功率照明领域，如汽车大灯和探照灯等。

Abstract

Towards the strong market demand for high power lightings

the all-inorganic fluorescent glass ceramics with excellent optical property and thermal/chemical stability are booming. In this work

a silicon-based nitride glass ceramic fluorescent conversion material embedded with La

:Ce

(LSN:Ce) phosphor was prepared based on a low temperature co-sintering method. It was demonstrated that LSN:Ce phosphor was less corroded by glass components during co-sintering

with its structure showing no obvious change

and so

good luminescent properties were retained with quantum efficiency of 79% and fluorescence integral intensity decreased only by ~14% at 150 ℃. The fabricated high-power white LED lighting source yields luminous efficacy of 54.8 lm/W

CCT of 5 712 K

CRI of 70.1

and chromaticity coordinate of (0.328 0

0.369 0)

upon 350 mA current driven. The constructed laser lighting source yields luminous flux of 118.48 lm

CCT of 7427 K

CRI of 56.2

and chromaticity coordinate of (0.298 2

0.322 6)

under 0.8 W excitation power. It was speculated that the thermal and light saturation phenomena occur in LSN:Ce fluorescent glass ceramics upon high-power blue laser excitation. After further optimization of material composition

preparation process

and device structure

LSN:Ce fluorescent glass ceramics are expected to be applicable to high-power lighting fields

such as automobile headlights and searchlights

and so on.

关键词

Keywords

references

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