A novel electropolymerization method for Ppy nanowire-based NH3 gas sensor with low contact resistance
- Title
- A novel electropolymerization method for Ppy nanowire-based NH3 gas sensor with low contact resistance
- Author
- 유봉영
- Keywords
- Polypyrrole; Nanowire; Ammonia; Sensor; Electropolymerization
- Issue Date
- 2011-12
- Publisher
- Elsevier BV
- Citation
- Sensors and Actuators, B: Chemical, v. 160, NO. 1, Page. 1168-1173
- Abstract
- One-dimensional (1-D) nanostructures of conducting polymers are a superior choice in chemical sensors and biosensors due to possibility of constructing sensors with higher sensitivity and fast detection. Here we report a new method for fabricating two electrode sensing device with low contact resistance by electrochemical synthesis of polypyrrole (Ppy) nanowires. This approach shows a new patterning technique which makes the addressable Ppy nanowires on the pre-patterned sub-Ni nanowires, in which large contact area between metal electrodes and Ppy significantly reduced the contact resistance. Performance of Ppy nanowire-based gas sensors for the detection of sub-ppm level concentrations of ammonia (NH3) gas is investigated. (C) 2011 Elsevier B.V. All rights reserved.
- URI
- https://www.sciencedirect.com/science/article/pii/S0925400511008446?via%3Dihubhttps://repository.hanyang.ac.kr/handle/20.500.11754/180960
- ISSN
- 0925-4005
- DOI
- 10.1016/j.snb.2011.09.042
- Appears in Collections:
- COLLEGE OF ENGINEERING SCIENCES[E](공학대학) > MATERIALS SCIENCE AND CHEMICAL ENGINEERING(재료화학공학과) > Articles
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