Nanostructures and Molecular Assembly of β-Blocked Long Oligothiophenes up to the 96-Mer on Au(111) as Probed by in Situ Electrochemical Scanning Tunneling Microscopy
| Autor: | Bernard John V. Tongol, Li Wang, Tetsuo Otsubo, Shueh Lin Yau, Kingo Itaya |
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| Rok vydání: | 2009 |
| Předmět: |
Nanostructure
Chemistry Substrate (electronics) Electrochemistry Electrochemical scanning tunneling microscope Surfaces Coatings and Films Electronic Optical and Magnetic Materials law.invention Crystallography chemistry.chemical_compound General Energy law Electrode Perchloric acid Physical and Theoretical Chemistry Cyclic voltammetry Scanning tunneling microscope |
| Zdroj: | The Journal of Physical Chemistry C. 113:13819-13824 |
| ISSN: | 1932-7455 1932-7447 |
| DOI: | 10.1021/jp9033276 |
| Popis: | The electrochemistry and adsorption of a series of β-blocked long oligothiophenes up to the 96-mer (96T) on Au(111) electrode were examined by using cyclic voltammetry (CV) and in situ electrochemical scanning tunneling microscopy (EC-STM), respectively, in 0.10 M HClO 4 . CV characterization presents the electrochemical behavior and stability of the oligothiophene-modified Au(111) in aqueous perchloric acid solution. EC-STM characterization revealed lamella-type molecular arrangement with the molecular axis aligned along the main crystallographic axis of the Au(111) substrate. High-quality STM molecular resolution imaging was obtained to reveal details of conformation, dimension, and packing habit of the oligothiophene nanostructures. |
| Databáze: | OpenAIRE |
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