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A key requirement in molecular electronics studies is the ability to measure the conductivity of a single molecule. But as Hipps explains in his Perspective, such measurements are often more about contacts than about molecular conductivity. Depending on the experimental setup, DNA behaves like a semiconductor, insulator, or metal. Cui et al. have designed a method that overcomes some of these problems, opening the door to systematic, reliable, and reproducible studies of the molecule-contact interface.
The author is in the Department of Chemistry and the Materials Science Program, Washington State University, Pullman, WA 99164, USA. E-mail: hipps{at}wsu.edu
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In Science Magazine
REPORTS
X. D. Cui, A. Primak, X. Zarate, J. Tomfohr, O. F. Sankey, A. L. Moore, T. A. Moore, D. Gust, G. Harris, and S. M. Lindsay (19 October 2001) Science294 (5542), 571.
[DOI: 10.1126/science.1064354] |Abstract »|Full Text »|PDF »
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