An Extra-Broadband VIS-NIR Emitting Phosphor toward Multifunctional LED Applications

Xiao Yu; Xiao Wenge; Wu DanGuan LinquanLuo MinSun Ling-Dong

首页> 外文期刊>Advanced functional materials >An Extra-Broadband VIS-NIR Emitting Phosphor toward Multifunctional LED Applications

【24h】

An Extra-Broadband VIS-NIR Emitting Phosphor toward Multifunctional LED Applications

机译：An Extra-Broadband VIS-NIR Emitting Phosphor toward Multifunctional LED Applications

获取原文

获取原文并翻译 | 示例

掌桥外文数据库（机构版） >>

开具论文收录证明 >>

文献代查 >>

页面导航

摘要
著录项
相关主题

摘要

The development of extra-broadband emitting phosphors is challenging but meaningful work. So far, however, phosphors that can be effectively excited by GaN-based blue light-emitting diode (LED) chips and emit from visible (VIS) to near-infrared (NIR) regions are still rare. Herein, this study designs an extra-broadband VIS-NIR emitting phosphor with emission band ranging from 460 nm to 880 nm (bandwidth 400 nm) upon 450 nm excitation, owing to an efficient energy transfer from Ce3+ to the red and NIR emitting Mn2+ ions in Lu2BaAl4SiO12 (LBAS) host. By the analysis of extended X-ray absorption fine structure (EXAFS) spectra and fluorescence lifetimes, it is demonstrated that the NIR emission most probably originates from those Mn2+ occupying the dodecahedral sites with high symmetry rather than the exchange-coupled Mn2+-Mn2+ pairs. Furthermore, two single-phase phosphor-converted LEDs are fabricated by combining blue LEDs with LBAS:Ce3+,Mn2+ phosphors, and thanks to the extra-broadband emission, the resultant devices may realize multifunctional applications, such as in high-quality general lighting, NIR spectroscopy, and plant growth lighting.

著录项

来源
《Advanced functional materials》 |2022年第7期|2109618.1-2109618.7|共7页
作者
Xiao Yu; Xiao Wenge; Wu DanGuan LinquanLuo MinSun Ling-Dong;
展开▼
作者单位

Zhejiang Univ, State Key Lab Modern Opt Instrumentat, Coll Opt Sci & Engn, Hangzhou 310027, Peoples R China;

Inner Mongolia Univ, Sch Phys Sci & Technol, Inner Mongolia Key Lab Nanosci & Nanotechnol, Hohhot 010021, Peoples R China;

Peking Univ, PKU HKU Joint Lab Rare Earth Mat & Bioinorgan Che, State Key Lab Rare Earth Mat Chem & Applicat, Beijing Natl Lab Mol Sci,Coll Chem & Mol Engn, Beijing 100871, Peoples R ChinaNanjing Forestry Univ, Coll Sci, Nanjing 210037, Peoples R ChinaPeking Univ, PKU HKU Joint Lab Rare Earth Mat & Bioinorgan Che, State Key Lab Rare Earth Mat Chem & Applicat, Beijing Natl Lab Mol Sci,Coll Chem & Mol Engn, Beijing 100871, Peoples R China|Nanjing Forestry Univ, Coll Sci, Nanjing 210037, Peoples R China;

展开▼
收录信息
原文格式 PDF
正文语种英语
中图分类
关键词
broadband emission; light-emitting diodes; Mn; (2+); multifunctional applications; phosphors;

An Extra-Broadband VIS-NIR Emitting Phosphor toward Multifunctional LED Applications

摘要

著录项

相关主题

期刊订阅