期刊
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
卷 41, 期 9, 页码 4924-4933出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.jeurceramsoc.2021.03.039
关键词
Photochromic; Luminescence modulation; Anisotropy; Textured ceramics; KSr2Nb5O15
资金
- China-Poland International Collaboration Fund of National Natural Science Foundation of China [51961135301]
- National Natural Science Foundation of China [51702259, 52072301]
- Fundamental Research Funds for the Central Universities [3102019GHJD001, 3102019MS0406]
- International Cooperation Foundation of Shaanxi Province [2019KW-054, 2020KW-032]
- 111 Project [B20028]
This study demonstrated the anisotropic characteristics of KSN-Sm textured ceramics, showing significant differences in reflectivity, luminescence, and luminescence modulation properties in different grain-orientated directions. These optical anisotropies were attributed to different refractive indexes, distributions of photochromic centers, and energy transfer rates in various orientations, providing potential for multidirectional data recording and enhancing anti-counterfeiting ability.
Sm3+ doped KSr2Nb5O15 (KSN-Sm) textured ceramics with anisotropic photochromic and luminescence modulation behaviors provided a new strategy for the enhancement of anti-counterfeiting ability. The KSN-Sm textured ceramics were fabricated by the tape casting technology, which exhibited obvious grain-orientation, with Lotgering factor f((00l)) of 0.62. The textured sample possessed evident difference of reflectivity, photochromic, luminescent and luminescence modulation properties among various grain-orientated directions. The difference of luminescent emission intensity was over than 30 % and the luminescence modulation ratios Delta R-t are 75.3 % and 63.3 % along paralleled and vertical [00l] orientations, respectively. These optical anisotropies were attributed to the different refractive indexes, distributions of photochromic centers and energy transfer rates at various orientations. This work is hopeful to achieve the multidirectional data recording and enhancement of anti-counterfeiting ability of photochromic ceramics by the anisotropic properties of textured ceramics.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据