Charge transport over multiple length scales in supramolecular fiber transistors: single fiber versus ensemble performance

Abstract

Self-assembled organic fibers combine facile solution processing with the performance benefits of single crystals. Here, the first evidence is shown of band-like transport in an n-type solution-processed small molecule system, a limited role of shallow traps, and a single fiber electron mobility that is several orders of magnitude higher than that measured in fiber ensembles or spin-cast films.

Keywords: band-like transport; conductive atomic force microscopy; organic field-effect transistors; self-assembly; supramolecular fibers.