Growth of polythiophene nano-walls and their unique electrochemical and optical properties

Bartlomiej Kolodziejczyk, Orawan Winther-Jensen, Chun Hin Ng, Shenghuang Lin, Qiaoliang Bao, Bjorn Winther Jensen

Research output: Contribution to journalArticle

5 Citations (Scopus)


It has been a persistent challenge to develop ordered conducting polymer nano- and micro-structures with a high active area. We herein report the method to produce and characterise a network of nanometre-sized walls (nano-walls) which forms on the surface of a conducting co-polymer composite film based on bithiophene and terthiophene prepared using vapour-phase polymerisation (VPP). The density and dimension of the walls are tunable in order to suit the application demands. The presence of nano-walls on the film surface increases the capacitance of the coating up to 3.4 times, making it a very promising candidate for energy and organic electronics applications. The nano-walls have also proved to be great candidates for photonic applications, efficiently guiding light. A two-step growth mechanism is proposed, which includes the reduction of Fe(iii) and part of the tosylate ligands in the Fe(iii) para-toluene sulphonate oxidant. This is the first report of a self-assembling conducting polymer material with nano-wall features induced by the conditions during VPP.

Original languageEnglish
Pages (from-to)452-460
Number of pages9
JournalMaterials Horizons
Issue number4
Publication statusPublished - 2014 Jul 1
Externally publishedYes


ASJC Scopus subject areas

  • Process Chemistry and Technology
  • Electrical and Electronic Engineering
  • Mechanics of Materials
  • Materials Science(all)

Cite this

Kolodziejczyk, B., Winther-Jensen, O., Ng, C. H., Lin, S., Bao, Q., & Winther Jensen, B. (2014). Growth of polythiophene nano-walls and their unique electrochemical and optical properties. Materials Horizons, 1(4), 452-460.