论文信息 - Development of a Novel Formaldehyde OTFT Sensor Based on P3HT/Fe2O3 Nanocomposite Thin Film

Development of a Novel Formaldehyde OTFT Sensor Based on P3HT/Fe2O3 Nanocomposite Thin Film

The formaldehyde (HCHO) is considered as a major cause of sick building syndrome (SBS). The majority of conventional HCHO sensors have some drawbacks such as sensitivity, long sampling time and high operating temperature. In this report, a novel organic thin film transistor (OTFT) HCHO sensor based on poly-3-hexylithiophene (P3HT)/ferric oxide (Fe2O3) nanocomposite thin films was developed by the spraying process. The results showed that the P3HT/Fe2O3 nanocomposite thin film OTFT sensor has the improved response and reproducibility compared with the single P3HT thin film OTFT, which may be ascribed to porous surface morphology of the nanocomposite thin film partially.

Yadong Jiang | Xian Li | H. Tai | C. Duan | Wenchao Dan

[1] Torahiko Ando,et al. Macromolecular electronic device: Field-effect transistor with a polythiophene thin film , 1986 .

[2] Torahiko Ando,et al. Field-effect transistor with polythiophene thin film , 1987 .

[3] Yu Jianfeng,et al. Study on Threshold Voltage Shift of Organic Thin-film Transistors , 2004 .

[4] Kagan Kerman,et al. Development of a novel hand-held formaldehyde gas sensor for the rapid detection of sick building syndrome , 2005 .

[5] Vivek Subramanian,et al. Organic TFTs as gas sensors for electronic nose applications , 2005 .

[6] Vivek Subramanian,et al. Printable polythiophene gas sensor array for low-cost electronic noses , 2006 .

[7] Che-Hsin Lin,et al. MEMS-based formaldehyde gas sensor integrated with a micro-hotplate , 2006 .

[8] Donghang Yan,et al. An investigation on air stability of copper phthalocyanine-based organic thin-film transistors and device encapsulation , 2006 .

[9] Joseph Miragliotta,et al. Hydroxy-terminated organic semiconductor-based field-effect transistors for phosphonate vapor detection. , 2007, Journal of the American Chemical Society.

[10] Sangmin Jeon,et al. Detection of formaldehyde vapor using mercaptophenol-coated piezoresistive cantilevers , 2007 .

[11] K. Varahramyan,et al. Glucose sensor based on organic thin film transistor using glucose oxidase and conducting polymer , 2008 .

[12] Nicola Cioffi,et al. Contact effects in organic thin-film transistor sensors , 2009 .