Advances in gas sensors of tetrapyrrolato-rare earth sandwich-type complexes—Commemorating the 100th anniversary of the birth of Academician Guangxian Xu

• 作者: Xiangjie Tang Qi Liu Chuangyu Wei Xuehui Lv Zhicheng Jin Yanli Chen Jianzhuang Jiang
• 来源期刊: 稀土学报（英文版）
• 年，卷（期）: 2021,（2）
• 所属期刊栏目: INVITED REVIEWS
• 页码范围: 113-120
• 页数: 8页
• 语种: 英文

摘要

In recent years,sandwich-type rare earth tetrapyrrole derivatives,have attracted more and more attention as material for conductimetric sensors.They have not only great chemical stability and processability,but also flexible molecular structure,which is a key to adjustable semiconductor properties.In this mini review,we focus mainly on the development of tetrapyrrolato-rare earth sandwich-type complexes as the semiconducting active layer in the gas sensors published in the last ten years(2010-2020).The main part includes two sections.In the single component gas sensing of sandwich rare earth tetrapyrrole complexes,we describe the influence factors of the single-component semiconducting active layer on the sensing performance of tetrapyrrolato-rare earth sandwich-type complexes,including substituents,central metals and π-conjugate systems.In the multi-component gas sensors,the synergistic effect between tetrapyrrolato-rare earth sandwich-type complex and other materials on improving sensitivity and con-ductivity has been discussed briefly.