Cu+ Migration and Luminescence Aging in ACEL ZnS Cu Phosphor Grains

ZHOU Lian-xiang

doi:null

您当前的位置：

首页 >

文章列表页 >

Cu⁺ Migration and Luminescence Aging in ACEL ZnS Cu Phosphor Grains

更新时间：2020-08-11

- Cu⁺ Migration and Luminescence Aging in ACEL ZnS Cu Phosphor Grains
- Chinese Journal of Luminescence Vol. 28, Issue 1, Pages: 49-52(2007)
- 作者机构：
  
  中国科学院, 长春光学精密机械与物理研究所,吉林长春,130033
- 作者简介：
- 基金信息：
- DOI：
  CLC： O482.31
- Received：07 July 2006，
  
  Revised：10 August 2006，
  
  Published：20 January 2007
- 稿件说明：
移动端阅览
周连祥. ACEL ZnS：Cu发光体内的Cu+迁移与发光的老化[J]. 发光学报, 2007,28(1): 49-52

ZHOU Lian-xiang. Cu+ Migration and Luminescence Aging in ACEL ZnS Cu Phosphor Grains[J]. Chinese Journal of Luminescence, 2007,28(1): 49-52
周连祥. ACEL ZnS：Cu发光体内的Cu+迁移与发光的老化[J]. 发光学报, 2007,28(1): 49-52 DOI：

ZHOU Lian-xiang. Cu+ Migration and Luminescence Aging in ACEL ZnS Cu Phosphor Grains[J]. Chinese Journal of Luminescence, 2007,28(1): 49-52 DOI：

摘要

众所周知

Cu对ZnS粉末ACEL是不可或缺和不可替代的。因此维持Cu和它的存在形式在ZnS晶粒中的稳定对ACEL的老化致关重要。Cu

在ZnS中具有很高的热扩散率

500℃时热扩散系数已达10

-9

是各种杂质中热扩散最强的杂质。900℃时几分钟内即可使7~10m的ZnS晶粒完全激活。Cu

S具有很强的离子导电特性

在电场作用下表现出很强的Cu

迁移特性。由于Cu

S具有很高的电导率

可视为导体

因此在外电场中ZnS晶粒内的Cu

S导电线处于等电位状态。与Cu

S导电线电位不同的所有等位面不能与Cu

S相交叉而发生扭曲。由于电流的流动方向必须与等位面垂直

所以导致流过ZnS晶粒的大部分电流被汇集到Cu

S导线上

并且在导电线上的电流密度分布呈两端弱、中间强的状态。因此在电场作用下Cu

S导电线及其周边可能达到很高温度。如上所述

迁移是必然的

以此可以很好地解释Fischer所观察到的发光线对的老化现象。

Abstract

It is known that Cu is necessary and no-replacable for ZnS powder ACEL.For this reason

the stability of Cu and its pattern in ZnS particle is the most important for maintenance of luminescence.Cu

possesses a strong thermo-diffusion with diffusivity of about 10

-9

/s in ZnS.At 900℃

ZnS particle of 7~10m can be activated by Cu

diffusion in few minutes completely.Cu

S is a fast-ion conductor emerging very strong Cu

migration in electric field.Because of high conductivity of Cu

S conductive line in ZnS grain is on the equipotential.The different equipotential surfaces from that of Cu

S line are distributed making a detour around the Cu

S line

not across the Cu

S line and compressed near both ends of Cu

S line.The most of current through the ZnS grain passed the Cu

S line because the direction of current must be vertical to the equipotential surfaces.So that

the density of current in the Cu

S line is not even

being the largest on the center

and weakening from the center to the ends gradually.

关键词

Keywords

references

Views

148

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

Photoluminescence and Multifunctional Applications of NaGdMgTeO₆∶Eu³⁺ Phosphors

Luminescence with Band-tail States and Thermal Disorder Analysis of CsFAMA Mixed Cationic Perovskite

Luminescence and Energy Transfer of Tb³⁺ in K₃La（PO₄）₂

Luminescence Properties of Blue Emitting Phosphor KYBaSi₂O₇∶Bi³⁺ for Near-UV Based White LEDs

Progress of Luminescent Behaviors of Mn²⁺-Mn²⁺ Pair with Magnetic Coupling Interaction

Related Author

LIU Fangfang

DAI Zhengmang

ZHOU Weiwei

LI Rongqing

XIA Zhengrong

WANG Zifeng

YANG Miai

ZHU Haodong

Related Institution

Anhui Engineering Research Center for Photoelectrocatalytic Electrode Materials， School of Electrical Engineering， Huainan Normal University

Huainan No.6 High School

Department of Mathematics and Physics， North China Electric Power University

School of Materials Science and Engineering， Shijiazhuang Tiedao University

College of Physical Science and Technology， Hebei University

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