A Single White Phosphor Suitable for Near Ultraviolet Excitation Applied to New Generation White LED Lighting

SUN Xiao-yuan; ZHANG Jia-hua; ZHANG Xia; LIU Shen-xin; JIANG Da-peng; WANG Xiao-jun

doi:null

您当前的位置：

首页 >

文章列表页 >

A Single White Phosphor Suitable for Near Ultraviolet Excitation Applied to New Generation White LED Lighting

更新时间：2020-08-11

- A Single White Phosphor Suitable for Near Ultraviolet Excitation Applied to New Generation White LED Lighting
- Chinese Journal of Luminescence Vol. 26, Issue 3, Pages: 404-406(2005)
- 作者机构：
  
  中国科学院, 激发态物理重点实验室, 吉林, 长春, 130033
- 作者简介：
- 基金信息：
- DOI：
  CLC： O482.31
- Received：20 March 2005，
  
  Revised：2005-4-19，
  
  Published：20 May 2005
- 稿件说明：
移动端阅览
孙晓园, 张家骅, 张霞, 刘慎薪, 蒋大鹏, 王笑军. 新一代白光LED照明用一种适于近紫外光激发的单一白光荧光粉[J]. 发光学报, 2005,26(3): 404-406

SUN Xiao-yuan, ZHANG Jia-hua, ZHANG Xia, LIU Shen-xin, JIANG Da-peng, WANG Xiao-jun. A Single White Phosphor Suitable for Near Ultraviolet Excitation Applied to New Generation White LED Lighting[J]. Chinese Journal of Luminescence, 2005,26(3): 404-406
孙晓园, 张家骅, 张霞, 刘慎薪, 蒋大鹏, 王笑军. 新一代白光LED照明用一种适于近紫外光激发的单一白光荧光粉[J]. 发光学报, 2005,26(3): 404-406 DOI：

SUN Xiao-yuan, ZHANG Jia-hua, ZHANG Xia, LIU Shen-xin, JIANG Da-peng, WANG Xiao-jun. A Single White Phosphor Suitable for Near Ultraviolet Excitation Applied to New Generation White LED Lighting[J]. Chinese Journal of Luminescence, 2005,26(3): 404-406 DOI：

摘要

首次报道单一Sr

MgSiO

:Eu

材料的白光发射性质。发射光谱由两个谱带组成

分别位于470

570nm处

并具有不同的荧光寿命

归结为处于不同格位上的二价铕离子的发射

它们混合成白光。这两个发射带所对应的激发光谱均分布在250～450nm的紫外区

利用该荧光粉和具有400nm近紫外光发射的InGaN管芯制成了白光LED。正向驱动电流为20mA时

色温为5664K;发光色坐标为

=0.33

=0.34;显色指数为85%;光强达8100cd/m

。实验表明

器件的色坐标和显色指数等参数随正向驱动电流的变化起伏量小于5%

优于目前商用的蓝光管芯泵浦白光LED

报道的单一白光荧光粉在新一代白光LED照明领域具有广阔的应用前景。

Abstract

We report

for the first time

white light emissions of a single Sr

MgSiO

:Eu

material. The emission spectrum consists of two bands

located at 470 and 570 nm

respectively. The two bands have different fluorescence lifetimes

being attributed to Eu

ions substituted by different Sr sites. White light is generated by mixing the two colors. The excitation spectra of the two bands are both distributed within UV range. A white LED has been fabricated employing the white phosphor and a near UV of 400 nm InGaN chip. As the forward-bias current is 20 mA

the color temperature is 5664 K

the color coordinates(CIE) are

=0.33

=0.34

the color rendering index(CRI) is 85% and the luminescent intensity is 8100 cd/m

. Experiments demonstrate that CIE and CRI of the white LED change slightly with the variation of forward-bias current

indicating that the phosphor presented in this work is a promising material for use in new generation white LED lighting.

关键词

Keywords

references

Views

348

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

Research Progress of Composite Structure Phosphor Materials for Solid-state Lighting

Luminescence Properties and Application of Ce³⁺ Doped Ba₃Y₂(BO₃)₄ Phosphor

Advance in Mn⁴⁺-doped Oxyfluoride Red-emitting Phosphors for WLED

Improving Moisture Resistance of K₂SiF₆∶Mn⁴⁺ via Passivation Effect of Lactobionic Acid

Photothermal Performance of Phosphor-in-glass Packaged Chip-scale White LED

Related Author

QI Xingyu

WU Lan

MA Yuelong

WANG Zidong

ZHAO Yimo

YAN Ziyang

SUN Xiaoyuan

LIU Chunmiao

Related Institution

School of Electromechanical Engineering， Henan University of Technology

SongShan Laboratory

Department of Physics， Changchun Normal University

Key Laboratory of Luminescence Science and Technology， Chinese Academy of Sciences & State Key Laboratory of Luminescence and Applications， Changchun Institute of Optics， Fine Mechanics and Physics， Chinese Academy of Sciences

School of Energy and Engineer， Jiangxi University of Science and Technology

AI问答

Address：No.3888 Dong Nanhu Road, Changchun, Jilin, China Postal code：130033
Tel：0431-86176862 Email：fgxbt@126.com
Technical support is provided by Beijing Founder electronics co., LTD 吉ICP备11002662号-17 京公网安备11010802024621
It is recommended to read the content of this site in Chrome&IE9+. Please switch to extreme mode in browser 360.
Cookies We use cookies to help provide and enhance our service and tailor content. By continuing, you agree to the use of cookies.

⁰