Copper phthalocyanine based organic thin film transistors as NO2 gas sensor
We have fabricated a bottom contact organic thin-film transistor (OTFT) using copper phthalocyanine (CuPC) as an active layer. Copper phthalocyanine was formed by vacuum evaporation onto a SiO2/n-Si substrate and was characterized by scanning electron microscope (SEM). We also investigate the current-voltage (I (DS)-V(DS)) characteristics of the CuPC based OTFTs and its response to nitrogen dioxide (NO2) gas at room temperature. The results show that this sensor is able to detect NO2 with good sensitivities and repetitions. The drain-source current are seen to be higher for larger values of NO2 gas concentration. Such OTFTs devices are promising to act as a novel class of chemical sensors.
organic thin-film transistor nitrogen dioxide gas sensor copper phthalocyanine
Songqi Fu Guangzhong Xie Huiling Tai Xian Li Ping Sun Ping Sun
School of Optoelectronic Information, State Key Laboratory of Electronic Thin Films and Integrated D Life and Physical Science College, Sichuan Agricultural University, Yaan 625014, PR China
国际会议
2010 International Conference on Measurement and Control Engineering(2010年IEEE测量与控制工程国际会议 ICMCE2010)
成都
英文
103-106
2010-11-16（万方平台首次上网日期，不代表论文的发表时间）