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Synthesis and Characterization of Ag/PEDOT:PSS films used for NH3 selective sensing

Minh Long Lam and Nang Dinh Nguyen and Quang Trung Tran (2016) Synthesis and Characterization of Ag/PEDOT:PSS films used for NH3 selective sensing. Communications in Physicss, 26 (2). pp. 173-180. ISSN 0868-3166

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Abstract

Nano-Ag/PEDOT-PSS films were prepared by spin-coating technique. SEM surface morphology, Raman spectra and gas sensing of methanol, humidity and NH3 were studied. The obtained results showed that the resistance of Ag/PEDOT:PSS sheets exposed to gases related to the generation of electrons from the gases adsorption that eliminated holes as the major carriers in PEDOT:PSS. For NH3 gas the largest change of the resistance of Ag/PEDOT:PSS was observed. The less sensitivity of humidity and ethanol sensing was explained due to less dedoping reaction between H2O and ethanol vapor with Ag/PEDOT:PSS, recpectively. This suggests a potential application of the nano-Ag/PEDOT-PSS sensors for the selective monitoring NH3 gas in environment.

Item Type:Article
Subjects:Engineering Physics
Divisions:Faculty of Engineering Physics and Nanotechnology (FEPN)
ID Code:2024
Deposited By: Prof. Nang Dinh Nguyen
Deposited On:02 Dec 2016 06:51
Last Modified:02 Dec 2016 06:51

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