Enhanced upconversion emissions in Er3+ doped perovskite BaTiO3 glass-ceramics via electric-stimulated polarization technique |
| |
| Authors: | Wenqing Xie Gongxun Bai Yangjian Cai Muzhi Cai Ying Tian Feifei Huang Shiqing Xu Junjie Zhang |
| |
| Affiliation: | 1. College of Materials Science and Engineering, China Jiliang University, Hangzhou 310018, PR China;2. Laboratory of Glasses and Ceramics, Institute of Chemical Science UMR CNRS 6226, University of Rennes 1, Rennes 35042, France |
| |
| Abstract: | In this work, Er3+ doped ferroelectric glass ceramics containing high-content BaTiO3 nanoperovskite have been prepared successfully. Optical behaviors with structural dependence indicate that the perturbation of ligand field by tunable thermal condition in glass-ceramics is beneficial to boost upconversion efficiency, that is, the emission intensity possesses multifold improvement in both green band (2H11/2, 4S3/2 → 4I15/2) and red band (4F9/2 → 4I15/2). And adding voltage to stimulate polarization reversal of ferroelectric domains has been investigated as a physical mode to broaden luminescence emissions in visible range. Compared with the unpolarized glass-ceramics, over 1.5 folds higher luminescence intensity can be obtained by polarizing the samples. The multiple mechanisms to achieve upconversion enhancement in ferroelectric materials will stimulate and expand the use of innovative optoelectronic devices. |
| |
| Keywords: | Perovskite Thermodynamics Upconversion Ferroelectrics Polarization |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
