Electron-beam lithography of cinnamate polythiophene films: conductive nanorods for electronic applications

Abstract

We report the electron-beam induced crosslinking of cinnamate-substituted polythiophene proceeding via excited state [2+2]-cycloaddition. Network formation in thin films is evidenced by infrared spectroscopy and film retention experiments. For the polymer studied herin, the electron-stimulated process appears to be superior to photo (UV)-induced crosslinking as it leads to less degradation. Electron beam lithography (EBL) patterns cinnamate-substituted polythiophene thin films on the nanoscale with a resolution of around 100 nm. As a proof of concept, we fabricated nanoscale organic transistors using doped and cross-linked P3ZT as contact fingers in thin film transistors.

Graphical abstract: Electron-beam lithography of cinnamate polythiophene films: conductive nanorods for electronic applications

Supplementary files

Article information

Article type
Edge Article
Submitted
31 Mar 2022
Accepted
14 Jun 2022
First published
16 Jun 2022
This article is Open Access

All publication charges for this article have been paid for by the Royal Society of Chemistry
Creative Commons BY license

Chem. Sci., 2022, Advance Article

Electron-beam lithography of cinnamate polythiophene films: conductive nanorods for electronic applications

N. M. Bojanowski, C. Huck, L. Veith, K. Strunk, R. Bäuerle, C. Melzer, J. Freudenberg, I. Wacker, R. R. Schröder, P. Tegeder and U. H. F. Bunz, Chem. Sci., 2022, Advance Article , DOI: 10.1039/D2SC01867E

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