Jump to main content
Jump to site search


Anisotropic electrical conductivity of n-doped thin films of polymerizable liquid-crystalline perylene bisimide bearing a triethylene oxide chain and cyclotetrasiloxane rings

Author affiliations

Abstract

A polymerizable liquid-crystalline perylene tetracarboxylic bisimide (PTCBI) derivative bearing a triethylene oxide chain and cyclotetrasiloxane rings was synthesized. The compound exhibited a lamello-columnar phase in which the electron transport channels and ion-conductive sublayers were nanosegregated. Time-of-flight measurements revealed that the electron mobility of the columnar phase was on the order of 10−3 cm2 V−1 s−1. Thin films of the compound were produced by a spin-coating method, and the resulting films were polymerized and insolubilized via exposure to the vapors of trifluoromethanesulfonic acid. The uniaxially aligned thin films were doped in an aqueous solution of sodium dithionite. The electrical conductivity of the as-deposited and polymerized films increased to 10−4 S cm−1 in the doped states because ionic species can penetrate the ion-conductive sublayers. The anisotropy in the electrical conductivity of the as-deposited and polymerized thin films exceeds 100 and 10, respectively, in the doped states.

Graphical abstract: Anisotropic electrical conductivity of n-doped thin films of polymerizable liquid-crystalline perylene bisimide bearing a triethylene oxide chain and cyclotetrasiloxane rings

Back to tab navigation
Please wait while Download options loads

Supplementary files

Publication details

The article was received on 12 Oct 2016, accepted on 28 Dec 2016 and first published on 03 Jan 2017


Article type: Research Article
DOI: 10.1039/C6QM00263C
Citation: Mater. Chem. Front., 2017, Advance Article
  •   Request permissions

    Anisotropic electrical conductivity of n-doped thin films of polymerizable liquid-crystalline perylene bisimide bearing a triethylene oxide chain and cyclotetrasiloxane rings

    M. Funahashi, Mater. Chem. Front., 2017, Advance Article , DOI: 10.1039/C6QM00263C

Search articles by author