Back to Search
Start Over
Ion and hole dual-channel transport columnar mesomorphic organic electronic materials with high anisotropic conductivities based on supramolecular discotic ionic liquid crystals.
- Source :
- Journal of Materials Chemistry C; 3/21/2021, Vol. 9 Issue 11, p3871-3881, 11p
- Publication Year :
- 2021
-
Abstract
- Thermotropic ionic liquid crystals (ILCs) are a kind of fascinating functional organic material combining the characteristics and advantages of both liquid crystals (LC) and ionic liquids. Here in this work, a series of supramolecular discotic ILCs of Cn-tri-CTP have been produced through host–guest complexation together with π–π stacking and electrostatic interactions between the readily prepared electrically neutral tris(18-crown-6)triphenylene (tri-CTP) and the facilely available potassium trialkoxybenzenesulfonates with different length alkyl tails of carbon number n = 8, 10, 12, 14, 16. The thus obtained ILC complexes show enantiotropic ordered columnar mesophases, such as center-faced rectangular columnar (Col<subscript>r</subscript>) and oblique columnar (Col<subscript>ob</subscript>) mesophases with broad LC temperature ranges and excellent thermal stability. It is very interesting and fascinating to find that after a simple alignment, such supramolecular discotic ILC complexes in their ordered columnar structures achieve simultaneously anisotropic ionic conductivities as high as 1.99 × 10<superscript>−2</superscript> S cm<superscript>−1</superscript> and hole mobility reaching 4.6 × 10<superscript>−2</superscript> cm<superscript>2</superscript> V<superscript>−1</superscript> s<superscript>−1</superscript>, thus exhibiting fantastic dual-channel transport properties both for ions and holes, which may develop into a kind of versatile organic electronic material for various promising unique applications. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 20507526
- Volume :
- 9
- Issue :
- 11
- Database :
- Complementary Index
- Journal :
- Journal of Materials Chemistry C
- Publication Type :
- Academic Journal
- Accession number :
- 149467000
- Full Text :
- https://doi.org/10.1039/d0tc04931j