Synthesis and Luminescence Properties of Er3+ Doped and Er3+-Yb3+ Co-doped Ca12Al14O32F2

被引：0

作者：

Liu X.-L. ^{[1
]}

Guo Y.-Y. ^{[1
]}

Mi X.-Y. ^{[1
]}

Zhang X.-Y. ^{[1
]}

机构：

[1] School of Materials Science and Engineering, Changchun University of Science and Technology, Changchun

来源：

Faguang Xuebao/Chinese Journal of Luminescence | 2019年 / 40卷 / 05期

基金：

中国国家自然科学基金;

关键词：

Ca[!sub]12[!/sub]Al[!sub]14[!/sub]O[!sub]32[!/sub]F[!sub]2[!/sub; Er[!sup]3+[!/sup; High temperature solid state reaction; Upconversion luminescence;

D O I：

10.3788/fgxb20194005.0589

中图分类号：

学科分类号：

摘要：

Er3 + doped and Er3+-Yb3+ co-doped Ca12Al14O32F2 were synthesized by solid-state reaction method at 1 250 oC and the upconversion luminescence (UCL) properties of the phosphor were studied under 980 nm excitation. The phosphor exhibits green (549 nm) and red (655 nm) emission, which corresponding to 4S3/2, 2H11/2→4I15/ 2 and 4F9/2→4I15/2 transitions of Er3+ respectively. The UCL intensity of the single doped sample increased firstly and then decreased with the increasing Er3+ concentration and the optimum concentration is 0.8%. The UCL intensity of Ca12Al14O32F2: Er3+, Yb3+ prepared in reducing atmosphere is enhanced by 2 times, which might be due to the encaged ions. The dependence of the UCL intensity on excitation powder proves that the observed emissions are obtained via two absorption processes. The transition mechanism of phosphor excitation under 980 nm is discussed in detail. © 2019, Science Press. All right reserved.

引用

页码：589 / 594

页数：5

共 21 条

[1] Cheng L., Yang K., Li Y.G., Et al., Facile preparation of multifunctional upconversion nanoprobes for multimodal imaging and dual-targeted photothermal therapy, Angew. Chem. Int. Ed. Engl., 50, 32, pp. 7385-7390, (2011)
[2] Liu Y.L., Ai K.L., Liu J.H., Et al., Hybrid BaYbF5 nanoparticles: novel binary contrast agent for high-resolution in vivo X-ray computed tomography angiography, Adv. Healthc. Mater., 1, 4, pp. 461-466, (2012)
[3] Wang J., Wei T., Li X.Y., Et al., Near-infrared-light-mediated imaging of latent fingerprints based on molecular recognition, Angew. Chem. Int. Ed. Engl., 53, 6, pp. 1616-1620, (2014)
[4] Deng R.R., Xie X.J., Vendrell M., Et al., Intracellular glutathione detection using MnO2-nanosheet-modified upconversion nanoparticles, J. Am. Chem. Soc., 133, 50, pp. 20168-20171, (2011)
[5] Liu K., Liu X.M., Zeng Q.H., Et al., Covalently assembled NIR nanoplatform for simultaneous fluorescence imaging and photodynamic therapy of cancer cells, ACS Nano, 6, 5, pp. 4054-4062, (2012)
[6] Chen Q.S., Xie X.J., Huang B.L., Et al., Confining excitation energy in Er3+-sensitized upconversion nanocrystals through Tm3+-mediated transient energy trapping, Angew. Chem. Int. Ed. Engl., 56, 26, pp. 7605-7609, (2017)
[7] Jieratum V., Iron and Copper Chalcogenides: Photovoltaic Absorber Candidates and YZrF7: A New Upconversion Host, (2013)
[8] Wang Y.B., Wei T., Cheng X.W., Et al., Insights into Li+-induced morphology evolution and upconversion luminescence enhancement of KSc2F7: Yb/Er nanocrystals, J. Mater. Chem. C, 5, 14, pp. 3503-3508, (2017)
[9] Ikeda T., First principles centroid molecular dynamics simulation of hydride innanoporous C12A7: H- , J. Chem. Phys., 146, 20, (2017)
[10] Gao A.M., Zhu X.F., Wang H.J., Et al., Reduction features of NO over a potassium-doped C12A7-O- catalyst, J. Phys. Chem. B, 110, 24, pp. 11854-11862, (2006)

← 1 2 3 →