ROOM-TEMPERATURE NITRIC OXIDE GAS SENSING OF PEDOT THIN FILM USING SURFACE PLASMON RESONANCE
- 1 December 2009
- journal article
- Published by National Taiwan University in Biomedical Engineering: Applications, Basis and Communications
- Vol. 21 (6), 395-398
- https://doi.org/10.4015/s1016237209001672
Abstract
A room-temperature nitric oxide ( NO ) gas sensor is prepared by using electrochemical synthesis of conducting polymer, poly-(3,4-ethylene dioxythiophene) (PEDOT) and characterized by surface plasmon resonance (SPR) method. Guided by SPR angle simulation, the optimal thickness of deposited PEDOT thin film is 25 nm and the resultant lowest detection limit of NO is 8 ppm. It exhibits 1.3 times higher responses to 25 ppm of NO gas than NO 2.Keywords
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