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Journal Article
Conductive Polymer Synthesis with Single-Crystallinity via a Novel Plasma Polymerization Technique for Gas Sensor Applications
- Authors
- Choon-Sang Park, Dong Ha Kim, Bhum Jae Shin, Do Yeob Kim, Hyung-Kun Lee, Heung-Sik Tae
- Issue Date
- 2016-10
- Citation
- Materials, v.9, no.10, pp.1-11
- ISSN
- 1996-1944
- Publisher
- MDPI AG
- Language
- English
- Type
- Journal Article
- Abstract
- This study proposes a new nanostructured conductive polymer synthesis method that can grow the single-crystalline high-density plasma-polymerized nanoparticle structures by enhancing the sufficient nucleation and fragmentation of the pyrrole monomer using a novel atmospheric pressure plasma jet (APPJ) technique. Transmission electron microscopy (TEM), Fourier transform infrared spectroscopy (FT-IR), X-ray photoelectron spectroscopy (XPS), and field emission scanning electron microscopy (FE-SEM) results show that the plasma-polymerized pyrrole (pPPy) nanoparticles have a fast deposition rate of 0.93 μm쨌min-1 under a room-temperature process and have single-crystalline characteristics with porous properties. In addition, the single-crystalline high-density pPPy nanoparticle structures were successfully synthesized on the glass, plastic, and interdigitated gas sensor electrode substrates using a novel plasma polymerization technique at room temperature. To check the suitability of the active layer for the fabrication of electrochemical toxic gas sensors, the resistance variations of the pPPy nanoparticles grown on the interdigitated gas sensor electrodes were examined by doping with iodine. As a result, the proposed APPJ device could obtain the high-density and ultra-fast single-crystalline pPPy thin films for various gas sensor applications. This work will contribute to the design of highly sensitive gas sensors adopting the novel plasma-polymerized conductive polymer as new active layer.
- KSP Keywords
- Active Layer, Atmospheric pressure plasma jet (appj), Crystalline characteristics, Deposition rate, Fast deposition, Field-emission scanning electron microscopy(FE-SEM), Fourier Transform InfraRed Spectroscopy(FTIR), Gas sensor applications, High density plasma(HDP), Plasma-polymerized pyrrole, Scanning electron microscopy(S.E.M.)
This work is distributed under the term of Creative Commons License (CCL)
(CC BY)
(CC BY)
