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June 7th, 2007

Surface transforms self-organization

Future organic electrical and optical devices could be based on thiophenes, including oligothiophenes, because of their potential for improved and tunable properties. Devices based on these materials also offer the incentive of easy fabrication via self-organization. However, the assembly of these molecules depends not only their individual properties, but also on their arrangement on and interaction with a surface. A research team led by WAN Lijun from the Chinese Academy of Scienecs (CAS) Key Laboratory of Molecular Nanostructure and Nanotechnology affiliated to the CAS Institute of Chemistry has used scanning tunneling microscopy (STM) to investigate two oligothiophenes on Au and highly oriented pyrolytic graphite (HOPG) surfaces. Their work has been reported in a recent issue of Proceedings of the National Academy of Sciences (PNAS).


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