Jump to main content
Jump to site search
Access to RSC content Close the message box

Continue to access RSC content when you are not at your institution. Follow our step-by-step guide.



Carbon dot-dispersed hexabutyloxytriphenylene discotic mesogens: structural, morphological and charge transport behavior

Author affiliations

Abstract

Triphenylene-core grafted 2,3,6,7,10,11-hexabutyloxytriphenylene (HAT4) discotic mesogens were synthesized and their composite matrices have been prepared by dispersing different concentrations of carbon dots (C-dots). The structural, morphological, and charge transport behaviors of the neat and composite matrices have been studied as a function of dopant concentration. The triphenylene matrix remains invariant after the controlled dispersion of quantum sized C-dots; nevertheless, the electronic and transport properties of the neat matrix have been changed significantly. The percolated network of C-dots in the HAT4 matrix offers 102 and 103 times higher conduction current in the columnar and crystalline phases, respectively; however, the charge carrier mobility is found to be reduced due to the surface-recombination and the change in the columnar ordering. In the Colhp phase, the HAT4/C-dots matrix exhibited maximum conductivity and charge mobility of the order of 10−6 S m−1 and 10−2 cm2 V−1 s−1, respectively. The superior behavior of the HAT4/C-dot composites, which could overcome the poor conductivity of organic semiconductors, indicates their potential for practical applications in organic semiconducting devices and optoelectronics.

Graphical abstract: Carbon dot-dispersed hexabutyloxytriphenylene discotic mesogens: structural, morphological and charge transport behavior

Back to tab navigation

Supplementary files

Article information


Submitted
25 Apr 2020
Accepted
28 May 2020
First published
01 Jun 2020

J. Mater. Chem. C, 2020, Advance Article
Article type
Paper

Carbon dot-dispersed hexabutyloxytriphenylene discotic mesogens: structural, morphological and charge transport behavior

P. Mahesh, A. Shah, K. Swamynathan, D. P. Singh, R. Douali and S. Kumar, J. Mater. Chem. C, 2020, Advance Article , DOI: 10.1039/D0TC02028A

Social activity

Search articles by author

Spotlight

Advertisements