All-dry, one-step synthesis, doping and film formation of conductive polypyrrole

Afshin Dianatdar Langeroudi, Matteo Miola, Oreste De Luca, Petra Rudolf, Francesco Picchioni, Ranjita Bose*

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review

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Abstract

Oxidative chemical vapor deposition (oCVD) is an extremely effective method for solvent-free deposition of highly conductive polypyrrole films, where polymer synthesis, doping, and film formation are combined in a single step. Here we show that by carefully tuning the reaction parameters, namely the deposition temperature, the reactor pressure and the oxidant to monomer flow rate ratio, homogeneous polypyrrole films with a record conductivity of 180 S cm-1 for a solvent-free method were produced. Fourier transform infrared spectroscopy, UV-vis spectrophotometry, X-ray photoelectron spectroscopy, scanning electron microscopy, and four-probe surface resistivity measurements were performed to gain insights into the relationship between different reaction conditions and the structure of oCVD-deposited polypyrrole, the development of defects, the film morphology and its physical properties.

Original languageEnglish
Pages (from-to)557-570
Number of pages14
JournalJournal of Materials Chemistry C
Volume10
Issue number2
Early online date6-Dec-2021
DOIs
Publication statusPublished - 14-Jan-2022

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