期刊文献+
共找到1篇文章
< 1 >
每页显示 20 50 100
Oxygen-assisted preparation of mechanoluminescent ZnS:Mn for dynamic pressure mapping 被引量:1
1
作者 Xiandi Wang Rui Ling +3 位作者 Yufei Zhang Miaoling Que Yiyao Peng Caofeng Pan 《Nano Research》 SCIE EI CAS CSCD 2018年第4期1967-1976,共10页
Mechanoluminescent materials that convert mechanical stimuli to light emission have attracted extensive attention for potential applications in human-machine interactions. Here, we report a simple and available novel ... Mechanoluminescent materials that convert mechanical stimuli to light emission have attracted extensive attention for potential applications in human-machine interactions. Here, we report a simple and available novel approach for the oxygen-assisted preparation of ZnS:Mn particles by solid-state reaction at atmospheric pressure without the formation of the corresponding oxides. The existence of O2 has a positive impact on the formation of S vacancies in wurtzite-phase ZnS, leading to the introduction of Mn2+ ion luminescent centers and shallow donor levels, which can improve the electron-hole recombination rate. The O2 ratio and Mn2+ ion doping concentration have significant effects on the luminous efficienc)5 which is optimal at 1%-20% and 1 at.%-2 at.% respectively. In addition, a device based on the piezo-photonic effect with excellent pressure sensitivity of 0.032 MPa-1 was fabricated, which can map the two-dimensional pressure distribution ranging from 2.2 to 40.6 MPa in situ. This device can be applied to real-time pressure mapping, smart sensor networks, high-level security systems, human-machine interfaces, and artificial skins. 展开更多
关键词 oxygen assistance piezo-photonic effect pressure mapping zns:mn
原文传递
上一页 1 下一页 到第
使用帮助 返回顶部