Synthesis and Self-Assembly of Donor-Acceptor-Donor Based Oligothiophenes and Their Optoelectronic Properties

Siram, Raja Bhaskar Kanth and Tandy, Kristen and Horecha, Marta and Formanek, Petr and Stamm, Manfred and Gevorgyan, Suren and Krebs, Frederik C and Kiriy, Anton and Meredith, Paul and Burn, Paul L and Namdas, Ebinazar B and Patil, Satish (2011) Synthesis and Self-Assembly of Donor-Acceptor-Donor Based Oligothiophenes and Their Optoelectronic Properties. In: The Journal of Physical Chemistry C, 115 (29). pp. 14369-14376.

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Abstract

In this work, the synthesis of an oligothiophene having a donor acceptor donor (D-A-D) chromophore with hydrogen bonding groups is described. The D-A-D molecule was demonstrated to self-organize via intermolecular H-bonding between barbituric acid units. Interactions between the oligothiophene subunits were also found to be important, affording nanoribbons that could be observed by atomic force and transmission electron microscopy. The applicability of the oligothiophene for organic electronic applications was investigated by fabricating organic field-effect transistors (OFETs) and organic photovoltaic devices. The OFET measurements yielded p-type mobility of 7 x 10(-7) cm(2)/(Vs), and when blended with C(60)-PCBM, the photovoltaic efficiency was observed to be 0.18%.

Item Type:	Journal Article
Publication:	The Journal of Physical Chemistry C
Publisher:	American Chemical Society
Additional Information:	Copyright of this article belongs to American Chemical Society.
Department/Centre:	Division of Chemical Sciences > Solid State & Structural Chemistry Unit
Date Deposited:	04 Aug 2011 10:50
Last Modified:	04 Aug 2011 10:50
URI:	http://eprints.iisc.ac.in/id/eprint/39732

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