Crystal Structure and Luminescent Properties of Ba2+ Modulated SrGe4-<italic style="font-style: italic">x</italic>O9∶<italic style="font-style: italic">x</italic>Mn4+ Phosphors

Heng-wei WEI; Ya-ting LI; Yu-ting LING; Ji-zhou LIN; Tian-yong LIU; Di-ping HE; Huan JIAO

doi:10.37188/CJL.20200386

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Crystal Structure and Luminescent Properties of Ba²⁺ Modulated SrGe_4-xO₉∶xMn⁴⁺ Phosphors

Synthesis and Properties of Materials | 更新时间：2021-05-20

- Crystal Structure and Luminescent Properties of Ba²⁺ Modulated SrGe_4-xO₉∶xMn⁴⁺ Phosphors
- Chinese Journal of Luminescence Vol. 42, Issue 5, Pages: 642-649(2021)
- 作者机构：
  
  1.陕西师范大学，化学化工学院，陕西　西安　 710062
  2.陕西师范大学，基础实验教学中心，陕西　西安　 710062
  3.烟台希尔德新材料有限公司，山东　烟台　 264006
- 作者简介：
- 基金信息：
  
  National Natural Science Foundation of China(51672167);Science and Technology Project of Xi'an(201805027YD5CG11);Innovation and Entrepreneurship Training Program of Shaanxi Normal University(S202010718057)
- DOI：10.37188/CJL.20200386
  CLC： O482.31
- Published：01 May 2021，
  
  Received：15 December 2020，
  
  Revised：02 February 2021，
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Heng-wei WEI, Ya-ting LI, Yu-ting LING, et al. Crystal Structure and Luminescent Properties of Ba²⁺ Modulated SrGe_4-xO₉∶xMn⁴⁺ Phosphors. [J]. Chinese Journal of Luminescence 42(5):642-649(2021)
DOI：

Heng-wei WEI, Ya-ting LI, Yu-ting LING, et al. Crystal Structure and Luminescent Properties of Ba²⁺ Modulated SrGe_4-xO₉∶xMn⁴⁺ Phosphors. [J]. Chinese Journal of Luminescence 42(5):642-649(2021) DOI： 10.37188/CJL.20200386.

摘要

采用传统固相法在1 100 ℃合成了SrGe

∶

(SGOM)系列荧光粉，通过Ba

取代Sr

调制了荧光粉基质的局部结构，对样品的晶体结构、发光性质和热稳定性进行了探讨。XRD测试结果表明

和Ba

均成功地掺杂进入基质SrGe

晶格，没有其他物相产生。在275 nm紫外光激发下

SGOM荧光粉的发射光谱是位于600~750 nm的深红色谱带，峰值波长位于660 nm，主要源于Mn

离子

→

能级跃迁的窄带发射，优化的Mn

浓度为0.015。利用Ba

离子对SrGe

3.985

∶0.015Mn

荧光粉的发光性质进行调控，发现随着Ba

浓度增大，发射光谱的强度先上升后下降，最佳Ba

浓度为0.4。 Ba

离子的引入造成基质结构中Sr1O10多面体产生局部扩张，导致样品的发射光谱展宽。为了解决封装白光LED中有机材料存在的难以承受发热的问题，制备出了基于SrGe

3.985

∶0.015Mn

荧光粉的荧光玻璃。优良的发光性质和热稳定性使SGOM荧光粉具备了应用于白光LED器件的前景。

Abstract

A series of SrGe

∶

(SGOM) phosphors were prepared at 1 100 ℃ by traditional solid-state method. The crystal structure

luminescent properties and temperature-dependent of SGOM were investigated. Local structure of SrGe

(SGO) was modulated by the introducing of Ba

ions. The results of XRD showed that both Mn

and Ba

ions were successfully doped into the SGO

and no other impurity phase was detected. Fluorescent measurement indicates that SGOM phosphors produce red emission(600~750 nm) upon UV(275 nm) light excitation

which can be attributed to

→

of Mn

. The optimal Mn

concentration in these phosphors equals 0.015. The emission spectra of SrGe

3.985

∶0.015Mn

was tuned by the introducing of Ba

ions. The luminescent intensity of SGOM was improved up to 50% when the Ba

doping concentration is 0.4

and an emission spectra broadening was also observed. This phenomenon is thought to be originated from the expanding of the local structure of Sr1O10 polyhedron caused by the Ba

doping. The phosphor-in-glass(PiG) technique was used to explore the properties of SGOM phosphor to overcome the decomposing issue of the organic materials. These phosphors exhibit potential application in WLED.

关键词

晶体结构SGOM荧光粉Ba2+调制荧光玻璃

Keywords

crystal structureSGOM phosphorsBa2+ modulatedphosphor in glass

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Related Author

Heng-wei WEI

Ya-ting LI

Yu-ting LING

Ji-zhou LIN

Tian-yong LIU

Di-ping HE

Huan JIAO

LU Ziwei

Related Institution

Shield Advanced Material Technology Company， Yan tai

Basic Experiment Center， Shaanxi Normal University

School of Chemistry & Chemical Engineering， Shaanxi Normal University

Ningbo Institute of Materials Technology & Engineering， Chinese Academy of Sciences

School of Materials Science and Chemical Engineering， Ningbo University

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⁰

Crystal Structure and Luminescent Properties of Ba2+ Modulated SrGe4-xO9∶xMn4+ Phosphors

DOI：10.37188/CJL.20200386

摘要

Abstract

关键词

Keywords

references

Crystal Structure and Luminescent Properties of Ba²⁺ Modulated SrGe_4-xO₉∶xMn⁴⁺ Phosphors