Red shift of O2-→Eu3+ Charge Transfer Band by Changing The Host Cationic Radiu

被引：0

作者：

Wang H.-J. ^{[1
]}

Lyu L.-L. ^{[1
,2
]}

Zhang S. ^{[2
]}

Feng J. ^{[2
]}

Pang R. ^{[2
]}

Jiang L.-H. ^{[2
]}

Li D. ^{[2
]}

Li C.-Y. ^{[2
]}

机构：

[1] Materials Science and Engineering, Jilin Jianzhu University, Changchun

[2] State Key Laboratory of Application of Rare Earth Resources, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun

来源：

Zhang, Su (zhangsu@ciac.ac.cn) | 1600年 / Editorial Office of Chinese Optics卷 / 38期

关键词：

ANb[!sub]2[!/sub]O[!sub]6[!/sub; Charge transfer band; Eu[!sup]3+[!/sup; Phosphors;

D O I：

10.3788/fgxb20173811.1429

中图分类号：

学科分类号：

摘要：

The phosphors with general molecular formula A0.98Nb2O6:Eu0.02(A=Ca,Sr,Ba) were prepared by the high-temperature solid state reaction technique. X-ray diffraction (XRD) results reveal that the obtained products are pure phase. The luminescence properties of A0.98Nb2O6:Eu0.02(A=Ca,Sr,Ba) were investigated by photoluminescence spectra (PL) and diffuse reflection spectra (DRS). A0.98Nb2O6:Eu0.02(A=Ca,Sr,Ba) phosphors can exhibit the characteristic red emission of Eu3+, and PL intensities of A0.98Nb2O6:Eu0.02 are in the order of CaNb2O6>SrNb2O6>BaNb2O6. The charge transfer transition (CT) and f-f transition absorption of Eu3+ can be observed in the excitation spectra. With the increase of the host cationic radius, the CT band shows large red shift from 270 to 330 nm. © 2017, Science Press. All right reserved.

引用

页码：1429 / 1435

页数：6

共 25 条

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