Functional oligothiophenes towards molecular wires in single-molecular electronics

11 May 2013

By Fernando Vázquez Luna

The synthesis of 3-hexylthiophene-based oligothiophenes with a length of approximately 10 nm bearing anchor units at both terminal positions has been accomplished. In addition, we have designed and synthesized completely encapsulated oligothiophenes to investigate single-molecule conductance. Their properties are evaluated by UV-vis absorption spectra and cyclic voltammetry (CV) measurements. The conductance of a single-molecule junction for thiol-introduced oligothiophenes was measured by 10-nm-scale nanogap gold electrodes or modified scanning tunneling microscope (STM) techniques.

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Ie, Y., Endou, M., Aihong, H., Yamada, R., Tada, H., & Aso, Y. (2012). Functional oligothiophenes toward molecular wires in single-molecular electronics. Pure & Applied Chemistry, 84(4), 931-943.