Development and Comparison Analysis of OTFT Gas Sensors Based on P3HT-ZnO Composite Film and P3HT/ZnO Bilayer Film

Development and Comparison Analysis of OTFT Gas Sensors Based on P3HT-ZnO Composite Film and P3HT/ZnO Bilayer Film
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基于P3HT-ZnO复合薄膜和P3HT/ZnO双层薄膜的OTFT气体传感器的研制与对比分析

DOI:
10.1080/10584587.2014.902719
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发表时间:
2014-05
影响因子:
0.7
通讯作者:
Jiang Yadong
Jiang Yadong
中科院分区:
工程技术4区
文献类型:
--
作者:
Tai Huiling;Li Xian;Duan Chengli;Xie Guangzhong;Jiang Yadong

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采用喷雾沉积方法在薄膜晶体管(TFT)上沉积了聚(3-己基噻吩基)(P3HT)/氧化锌(ZnO)复合双层薄膜作为敏感层,用于二氧化氮(NO2)气敏传感器。测试和分析了传感器的电学性能和对NO2的敏感性能,并用扫描电子显微镜(SEM)对薄膜的表面形貌进行了表征和比较。结果表明,P3HT-ZnO复合薄膜TFT传感器具有比P3HT/ZnO传感器更好的传感性能,这从薄膜的形貌分析和异质结模型两方面进行了解释。
Poly (3-hexylthiophene) (P3HT) and zinc oxide (ZnO) composite and bilayer films were deposited on thin film transistor (TFT) as the sensitive layer by spray deposition method for the nitrogen dioxide (NO2) gas sensor application. The electrical and NO2-sensing properties of sensors were tested and analyzed, and the surface morphology of films was characterized and compared by scanning electron microscope (SEM). The results showed that the P3HT-ZnO composite film TFT sensor exhibited better sensing properties than the P3HT/ZnO sensor, which was explained by both morphology analysis and heterojunction models of films.
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