无机材料学报Issue(8)：851-854,4.DOI:10.15541/jim20130599
（Bi0.5Na0.5）TiO3：Sm3+无铅压电陶瓷的红光发射特性
Red Emission Properties for (Bi0.5Na0.5)TiO3:Sm3+Lead-free Piezoelectrics
摘要
Abstract
Sm3+ doped (Bi0.5Na0.5)TiO3 lead-free piezoelectric ceramics were fabricated by the conventional solid-state reaction method. Phase and crystallinity of the synthesized materials were investigated by X-ray diffraction (XRD). The influences of the Sm3+dopant concentration, sintering temperature and charge compensation on photolu-minescence properties were systematically investigated. The results showed that the (Bi0.5Na0.5)TiO3 ceramics realized red-green emission by additives of Sm3+ions, and the excitation bands were well adaptable to the emission band of commercial blue light-emitting diodes. The emission intensities were strongly dependent on the dopant concentration and sintering temperature with the optimal value at 0.015 mol and 1100℃, respectively. The enhanced luminescence was observed for the Li+, Na+and K+doped compositions as compensators compared to the host matrix with only Sm3+ions, indicating that host activator energy transfer of Sm3+ could be responsible for this enhancement. Among the compensators of Li+, Na+and K+ions, the K+compensated (Bi0.5Na0.5)TiO3-Sm3+samples showed the remarkable im-provement in photoluminescence properties. Hence, the Sm3+ doped (Bi0.5Na0.5)TiO3 ceramics as a multifunctional material may have significantly technological promise for optical-electro integration devices.关键词
无铅压电陶瓷/蓝光LED/多功能材料Key words
lead-free piezoelectric ceramics/blue light-emitting diodes (LED)/multifunctional material分类
化学化工引用本文复制引用
孙海勤,张涛,张奇伟,张胤..（Bi0.5Na0.5）TiO3：Sm3+无铅压电陶瓷的红光发射特性[J].无机材料学报,2014,(8):851-854,4.基金项目
内蒙古科技大学创新基金(2012NCL006,2012NCL002) （2012NCL006,2012NCL002）
中国博士后科学基金(2013M540384) Innovation Funds of Inner Mongolia University of Science&Technolygy (2012NCL006,2012NCL002) （2013M540384）
National Science Foundation for Post-doctoral Scientists of China (2013M540384) （2013M540384）
