PRAP-CVD: Up-scalable process for the deposition of PEDOT thin films

Bianca Rita Pistillo*, Kevin Menguelti, Didier Arl, Renauld Leturcq, Damien Lenoble

Material Research & Technology Department, Luxembourg Institute of Science and Technology, Institute, 41, rue du Brill, Belvaux, L-4422, Luxembourg

Adv. Mater. Lett., 2019, 10 (3), pp 201-205

DOI: 10.5185/amlett.2019.2186

Publication Date (Web): Dec 31, 2018



Plasma radicals assisted polymerization via CVD (PRAP-CVD) is emerging as an efficient alternative to conventional vapour based techniques to synthesise and deposit conjugated polymers. PRAP-CVD process is based on the concomitant but physically separated injection of low-energy oxidative radical initiators and vaporized monomer species into a reactor where temperature and pressure are finely controlled. Gas phase oxidative radicals are generated by a remote plasma chamber from a pure or diluted initiator. The low deposition temperature, below 100 °C, allows polymers to be directly synthesised on a wide range of substrates, including fabric, paper and plastic, without any thermal degradation and keeping a high degree of surface conformality. Additionally, the PRAP-CVD does not require post-deposition rinsing procedure which allows a wider range of application. PRAP-CVD PEDOT depositions have been carried out on different substrates with a transparency higher than 80% in the visible range. 


Conjugated polymers, PEDOT, conductive polymers, PRAP-CVD.

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