Jump to main content
Jump to site search

Issue 37, 2009
Previous Article Next Article

Room-temperature discotic liquid-crystalline coronene diimides exhibiting high charge-carrier mobility in air

Author affiliations

Abstract

Six N,N′,5,11-tetrasubstituted coronene-2,3,8,9-tetracarboxydiimides have been synthesised incorporating 3,4,5-tri(n-dodecyloxy)phenyl or 2-(n-decyl)-n-tetradecyl groups in various positions. Differential scanning calorimetry, polarised optical microscopy, and X-ray diffraction indicate that all form columnar discotic mesophases from around room temperature to around 200 °C. Charge-carrier mobility values, which energetic considerations suggest are electron mobility values, have been determined in non-aligned samples cooled from the isotropic melt using the space-charge-limited current technique. The highest mobility, 6.7 cm2V−1 s−1, was found in N,N′-bis(n-2,2,3,3,4,4,5,5,6,6,7,7,8,8,8-pentadecylfluorooctyl)-5,11-bis(3-[{3,4,5-tri(n-dodecyloxy)phenyl}carbonyloxy]-n-propyl)coronene-2,3,8,9-tetracarboxydiimide, which X-ray diffraction suggests is the most highly ordered of the materials examined.

Graphical abstract: Room-temperature discotic liquid-crystalline coronene diimides exhibiting high charge-carrier mobility in air

Back to tab navigation

Supplementary files

Publication details

The article was received on 03 Jun 2009, accepted on 17 Jul 2009 and first published on 18 Aug 2009


Article type: Paper
DOI: 10.1039/B910898J
J. Mater. Chem., 2009,19, 6688-6698

  •   Request permissions

    Room-temperature discotic liquid-crystalline coronene diimides exhibiting high charge-carrier mobility in air

    Z. An, J. Yu, B. Domercq, S. C. Jones, S. Barlow, B. Kippelen and S. R. Marder, J. Mater. Chem., 2009, 19, 6688
    DOI: 10.1039/B910898J

Search articles by author

Spotlight

Advertisements