SONG Zhenlin, ZHANG Qinyi, MENG Xin, et al. Study on doped ZnO sensor by micro-droplet injection and its gas sensitive properties[J]. 2019, (5): 6-9. DOI: 10.13873/J.1000-9787(2019)05-0006-04.
微液滴注法制备掺杂ZnO传感器及其气敏性能研究
摘要
采用自制ZnO颗粒
通过丝网印刷制备了ZnO平板型厚膜气体传感器
使用微液滴注的方法对ZnO传感器进行Mg
Mn
Sn
Pd掺杂
测量了传感器对乙醇、丙酮、苯、乙酸的气敏性能。结果表明:微滴掺杂能有效提高传感器敏感性和选择性
其中
Mg掺杂传感器对乙醇和丙酮具有最大响应值
同时Mn掺杂传感器对乙酸表现出了较好的选择性。
Abstract
ZnO plate thick film gas sensors are fabricated by screen printing with self-prepared ZnO particles.Mg
Mn
Sn
Pd are doped into the sensors by micro-droplet doping. The gas sensitivities of the sensors to ethanol
acetone
benzene and acetic acid are measured. The results show that the micro-droplet doping is an effective way to improve the sensitivities and selectivity of the sensors. Among them
the Mg-doped sensor has the highest response values to ethanol and acetone
and the Mn-doped sensor shows better selectivity to acetic acid.