Publication Date:
2001-06-26
Description:
We tracked over time the conductance switching of single and bundled phenylene ethynylene oligomers isolated in matrices of alkanethiolate monolayers. The persistence times for isolated and bundled molecules in either the ON or OFF switch state range from seconds to tens of hours. When the surrounding matrix is well ordered, the rate at which the inserted molecules switch is low. Conversely, when the surrounding matrix is poorly ordered, the inserted molecules switch more often. We conclude that the switching is a result of conformational changes in the molecules or bundles, rather than electrostatic effects of charge transfer.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Donhauser, Z J -- Mantooth, B A -- Kelly, K F -- Bumm, L A -- Monnell, J D -- Stapleton, J J -- Price Jr, D W -- Rawlett, A M -- Allara, D L -- Tour, J M -- Weiss, P S -- New York, N.Y. -- Science. 2001 Jun 22;292(5525):2303-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Chemistry, The Pennsylvania State University, University Park, PA 16802-6300, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11423655" target="_blank"〉PubMed〈/a〉
Print ISSN:
0036-8075
Electronic ISSN:
1095-9203
Topics:
Biology
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Chemistry and Pharmacology
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Computer Science
,
Medicine
,
Natural Sciences in General
,
Physics
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