Ultrafast Room Temperature Synthesis of Porous Polythiophene via Atmospheric Pressure Plasma Polymerization Technique and Its Application to NO2 Gas Sensors

Polymers

BhumJae Shin¹  Choon-Sang Park²  Hyung-Kun Lee³  DoYeob Kim³  EunYoung Jung⁴  Heung-Sik Tae⁴  JaeYoung Kim⁴  HyoJun Jang⁴  GyuTae Bae⁴ 

[1] Department of Electronics Engineering, Sejong University, Seoul 05006, Korea;Department of Electronics and Computer Engineering, College of Engineering, Kansas State University, Manhattan, NY 66506, USA;ICT Creative Research Laboratory, Electronics & Telecommunications Research Institute, Daejeon 34129, Korea;School of Electronic and Electrical Engineering, College of IT Engineering, Kyungpook National University, Daegu 41566, Korea;

关键词: atmospheric pressure plasma;    room temperature growth;    plasma polymerization;    porous polythiophene;    conducting polymer;    NO₂;   

DOI  :  10.3390/polym13111783

来源: DOAJ

【 摘 要 】

New nanostructured conducting porous polythiophene (PTh) films are directly deposited on substrates at room temperature (RT) by novel atmospheric pressure plasma jets (APPJs) polymerization technique. The proposed plasma polymerization synthesis technique can grow the PTh films with a very fast deposition rate of about 7.0 μm·min⁻¹ by improving the sufficient nucleation and fragment of the thiophene monomer. This study also compares pure and iodine (I₂)-doped PTh films to demonstrate the effects of I₂ doping. To check the feasibility as a sensing material, NO₂-sensing properties of the I₂-doped PTh films-based gas sensors are also investigated. As a result, the proposed APPJs device can produce the high density, porous and ultra-fast polymer films, and polymers-based gas sensors have high sensitivity to NO₂ at RT. Our approach enabled a series of processes from synthesis of sensing materials to fabrication of gas sensors to be carried out simultaneously.

【 授权许可】

Unknown