基于复合金属氧化物的三乙胺气体传感器研究进展

Research Progress of Compound Metal Oxide Triethylamine Gas Sensor

随着市场对有机挥发性气体检测需求的提高,半导体气体传感器因其工作温度低、循环稳定性良好、响应恢复时间短等特性受到了广泛关注。三乙胺是一种重要的化工原料,然而,其挥发性特性及刺激性气味和低毒性对人类的生命安全造成了威胁。近年来国内外有不少三乙胺气体检测的研究论文和产品介绍,但全面性的综述文章极少。本文以前期学者对三乙胺气体检测的工作为抓手,首先讲述了三乙胺传感器的响应机理和提高气敏响应的内在因素,总结了以不同金属氧化物为基质的复合型半导体传感器对三乙胺气体的检测情况,并详细介绍了不同材料形貌与气敏性能之间的关系。另外,对部分材料的气敏增强机理作了简要概述。最终,对三乙胺气体传感领域做出展望,并为后续开展相关领域工作提供了理论基础。

Semiconductor gas sensors have received wide attention from researchers for their low operating temperature,good cycling stability and short response recovery time to meet the increasing demand for organic volatile gas detection.As an organic volatile compound,trimethylamine plays an irreplaceable role in industrial production.However,its inherent irritating odor and low toxicity pose a threat to human life safety.Although many research papers concerning triethylamine gas detection have been published in recent years,there are few comprehensive review articles.In this paper,the response mechanism of enhancing gas sensitivity of triethylamine sensor and the internal factors to improve the gas sensitive response are reviewed firstly,and the detection of triethylamine gas by compound semiconductor sensor based on different metal oxides is summarized.Meanwhile,the relationship between the morphology of different materials and the gas sensitive performance is introduced in detail.Finally,it prospects the field of triethylamine gas sensing,and provides a theoretical basis for the follow-up work in related fields in this paper.