The fabrication and optimization of OTFT formaldehyde sensors based on Poly(3-hexythiophene)/ZnO composite films

查看全文 作　　者：LI [1]Xian;JIANG [1]YaDong;TAI [1]HuiLing;XIE [1]GuangZhong;DAN [1]WenChao

机构地区：[1]State Key Laboratory of Electronic Thin Films and Integrated Devices,School of Optoelectronic Information,University of Electronic Science and Technology of China(UESTC)

出　　处：《Science China(Technological Sciences)》索引2013年第56卷第8期,共6页

基　　金：supported by the National Natural Science Foundation of China (Grant Nos. 61176066,61101031) 摘　　要：Formaldehyde(HCHO),a colorless and pungent-smelling gas,is confirmed be a huge threat to human health.The detection of formaldehyde is necessary and important.The Poly(3-hexythiophene)(P3HT)/ZnO organic-inorganic composite thin film was fabricated and used as the sensitive layer of organic thin film transistors(OTFT) by spray-deposited method to detect HCHO at room temperature.The process parameters such as P3HT/ZnO weight ratios and airbrushed masses were optimized.The results showed that P3HT/ZnO OTFT exhibited good sensing response to HCHO.Airbrushed mass of 1ml was the optimal mass,and the 1:1 and 1:5 weight ratios of P3HT/ZnO exhibited better sensing properties compared with others.OTFT gas sensors based on P3HT/ZnO composite film provides a novel promising approach to the detection of HCHO. 关键词：气体传感器 OTFT 薄膜制造 ZNO 甲醛复合薄膜优化有机薄膜晶体管

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The fabrication and optimization of OTFT formaldehyde sensors based on Poly(3-hexythiophene)/ZnO composite films

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