Jump to main content
Jump to site search

Issue 10, 2013
Previous Article Next Article

Isomeric carbazolocarbazoles: synthesis, characterization and comparative study in Organic Field Effect Transistors

Author affiliations

Abstract

We report here the synthesis and characterization of a new family of isomeric carbazolocarbazole derivatives, namely carbazolo[1,2-a]carbazole, carbazolo[3,2-b]carbazole and carbazolo[4,3-c]carbazole. Thermal, optical, electrochemical, morphological and semiconducting properties have been studied to understand the influence of geometrical isomerism on the optoelectronic properties of these compounds. Different packing patterns have been observed by single crystal X-ray diffraction (XRD) which then correlate with the different morphologies of the evaporated thin films studied by XRD and Atomic Force Microscopy (AFM). The effect of N-substituents has also been evaluated for one of the isomers revealing a noticeable influence on the performance as organic semiconductors in Organic Field Effect Transistors (OFETs). A good p-channel field effect has been determined for N,N′-dioctylcarbazolo[4,3-c]carbazole with a mobility of 0.02 cm2 V−1 s−1 and Ion/Ioff ratio of 106 in air. These preliminary results demonstrate the promising properties of molecular carbazolocarbazole systems which should be further explored in the area of organic semiconducting materials.

Graphical abstract: Isomeric carbazolocarbazoles: synthesis, characterization and comparative study in Organic Field Effect Transistors

Back to tab navigation

Supplementary files

Publication details

The article was received on 08 Oct 2012, accepted on 29 Dec 2012 and first published on 03 Jan 2013


Article type: Paper
DOI: 10.1039/C2TC00363E
Citation: J. Mater. Chem. C, 2013,1, 1959-1969

  •   Request permissions

    Isomeric carbazolocarbazoles: synthesis, characterization and comparative study in Organic Field Effect Transistors

    M. Más-Montoya, R. P. Ortiz, D. Curiel, A. Espinosa, M. Allain, A. Facchetti and T. J. Marks, J. Mater. Chem. C, 2013, 1, 1959
    DOI: 10.1039/C2TC00363E

Search articles by author

Spotlight

Advertisements