Supramolecular Control of Charge Transport in Molecular Wires
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- 作者：Ferdinand C. Grozema ; Coralie Houarner-Rassin ; Paulette Prins ; Laurens D. A. Siebbeles ; Harry L. Anderson
- 刊名：Journal of the American Chemical Society
- 出版年：2007
- 出版时间：November 7, 2007
- 年：2007
- 卷：129
- 期：44
- 页码：13370 - 13371
- 全文大小：69K
- 年卷期：v.129,no.44(November 7, 2007)
- ISSN：1520-5126
文摘
The transport of positive charges along porphyrin-based molecular wires has been probed in dilute solution using pulse radiolysis time-resolved microwave conductivity. The mobility of positive charges along isolated single-strand porphyrin wires was found to be 0.084 cm2/(V s). Addition of 4,4'-bipyridyl leads to the formation of a double-strand ladder complex, locking each polymer strand into a more planar structure and thus enhancing the porphyrin-porphyrin -conjugation, leading to an increase in the charge carrier mobility by an order of magnitude to 0.91 cm2/(V s).