Structure properties relationships of liquid crystal bent core organic semiconductors based on benzo[2,1-b:3,4-b ']dithiophene-4,5-dione - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Journal of Materials Chemistry Année : 2012

Structure properties relationships of liquid crystal bent core organic semiconductors based on benzo[2,1-b:3,4-b ']dithiophene-4,5-dione

Résumé

We report the synthesis of a new diketone bridged dithiophene end-capped with the mesogenic functionalities: 2,7′-bis(alkoxy-biphenyl) and 2,7′-bis(alkoxy-phenyl)-benzo[2,1-b:3,4-b′]dithiophene-4,5-dione. Optical and electrochemical properties in solution were investigated by UV-visible absorption and cyclic voltammetry. Liquid crystal properties of these new materials were investigated by differential scanning calorimetry, optical polarizing microscopy, and X-ray diffraction studies. Both compounds exhibit layered phases though there are differences in the organisation of the phase structures. Thin films were implemented as active layers into organic thin-film transistors to evaluate the charge transport properties.

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Chimie
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Dates et versions

hal-00773488 , version 1 (14-01-2013)

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  • HAL Id : hal-00773488 , version 1

Citer

H. Aboubakr, M.G. Tamba, A.K. Diallo, C. Videlot-Ackermann, Lénaïk Bélec, et al.. Structure properties relationships of liquid crystal bent core organic semiconductors based on benzo[2,1-b:3,4-b ']dithiophene-4,5-dione. Journal of Materials Chemistry, 2012, 22 (43), pp.23159-23168. ⟨hal-00773488⟩
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