標題: A Novel pH Sensor of Extended-Gate Field-Effect Transistors With Laser-Irradiated Carbon-Nanotube Network
作者: Chien, Yun-Shan
Tsai, Wan-Lin
Lee, I-Che
Chou, Jung-Chuan
Cheng, Huang-Chung
電子工程學系及電子研究所
Department of Electronics Engineering and Institute of Electronics
關鍵字: Carbon-nanotube (CNT) network;extended-gate field-effect transistor (EGFET);modified multiwalled carbon nanotube (MWCNT);pH sensor
公開日期: 1-十一月-2012
摘要: The extended-gate field-effect transistors (EGFETs) with only the carbon-nanotube (CNT) thin film as both the sensing membrane and the contact electrode have been demonstrated for the first time to exhibit superior pH sensing characteristics. The continuous-wave laser was necessary to improve the pH sensitivity to be 50.9 mV/pH and the linearity values to be 0.9978 for pH = 3 to pH = 13 wide sensing range, respectively. It implied that the laser energy would unzip the chemically modified multiwalled CNTs (MWCNTs) into numerous graphite slices, resulting in the elevated sensing sites and the improved electrical and sensing properties. Therefore, the laser-irradiated MWCNT network is promising for the applications in the flexible and transparent pH-EGFETs.
URI: http://dx.doi.org/10.1109/LED.2012.2213794
http://hdl.handle.net/11536/20404
ISSN: 0741-3106
DOI: 10.1109/LED.2012.2213794
期刊: IEEE ELECTRON DEVICE LETTERS
Volume: 33
Issue: 11
起始頁: 1622
結束頁: 1624
顯示於類別:期刊論文


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  1. 000310387100037.pdf