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Synthesis and Self-Assembly of Donor-Acceptor-Donor Based Oligothiophenes and Their Optoelectronic Properties RID F-5347-2010 RID F-5849-2010 RID B-4691-2010

Author:
Siram, Raja Bhaskar Kanth  Tandy, Kristen  Horecha, Marta  Formanek, Petr  Stamm, Manfred  Gevorgyan, Suren  Krebs, Frederik C.  Kiriy, Anton  Meredith, Paul  Burn, Paul L.  Namdas, Ebinazar B.  Patil, Satish  


Journal:
JOURNAL OF PHYSICAL CHEMISTRY C


Issue Date:
2011


Abstract(summary):

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%.


Page:
14369---14376


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