{"id":4100,"date":"2019-04-01T11:58:49","date_gmt":"2019-04-01T09:58:49","guid":{"rendered":"http:\/\/www.cinam.univ-mrs.fr\/cinam\/?p=4100"},"modified":"2019-04-01T12:07:49","modified_gmt":"2019-04-01T10:07:49","slug":"estimating-single-molecule-conductance-from-spontaneous-evolution-of-a-molecular-contact","status":"publish","type":"post","link":"https:\/\/www.cinam.univ-mrs.fr\/cinam\/en\/2019\/04\/01\/estimating-single-molecule-conductance-from-spontaneous-evolution-of-a-molecular-contact\/","title":{"rendered":"Estimating single molecule conductance from spontaneous evolution of a molecular contact"},"content":{"rendered":"<p>We present an original method to estimate the conductivity of a single molecule anchored to nanometric-sized metallic electrodes, using a Mechanically Controlled Break Junction (MCBJ) operated at room temperature in liquid.<\/p>\n<p>We record the conductance through the metal \/ molecules \/ metal nanocontact while keeping the metallic electrodes at a fixed distance.<\/p>\n<figure id=\"attachment_4113\" aria-describedby=\"caption-attachment-4113\" style=\"width: 300px\" class=\"wp-caption alignright\"><img decoding=\"async\" loading=\"lazy\" class=\"wp-image-4113 size-medium\" src=\"http:\/\/www.cinam.univ-mrs.fr\/cinam\/wp-content\/uploads\/2019\/04\/figure7-300x256.png\" alt=\"\" width=\"300\" height=\"256\" srcset=\"https:\/\/www.cinam.univ-mrs.fr\/cinam\/wp-content\/uploads\/2019\/04\/figure7-300x256.png 300w, https:\/\/www.cinam.univ-mrs.fr\/cinam\/wp-content\/uploads\/2019\/04\/figure7-768x655.png 768w, https:\/\/www.cinam.univ-mrs.fr\/cinam\/wp-content\/uploads\/2019\/04\/figure7-1024x874.png 1024w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><figcaption id=\"caption-attachment-4113\" class=\"wp-caption-text\">Conductance vs number of molecules<\/figcaption><\/figure>\n<p>Taking advantage of thermal diffusion and electromigration, we let the contact naturally explore the more stable configurations around a chosen conductance value. The conductance of a single molecule is estimated from a statistical analysis of raw con-ductance and conductance standard deviation data for molecular contacts containing up to 14 molecules. The single molecule conductance values are interpreted as time-averaged conductance of an ensemble of conformers at thermal equilibrium.<\/p>\n<p><strong>Read the article<\/strong> :\u00a0<a href=\"https:\/\/hal.archives-ouvertes.fr\/hal-01586755\">https:\/\/hal.archives-ouvertes.fr\/hal-01586755<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>H. Klein, SSP. Publication of an original method to estimate the conductance of a single molecule using a Mechanically controlled break junction<\/p>\n","protected":false},"author":5,"featured_media":4165,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[31],"tags":[],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/www.cinam.univ-mrs.fr\/cinam\/en\/wp-json\/wp\/v2\/posts\/4100"}],"collection":[{"href":"https:\/\/www.cinam.univ-mrs.fr\/cinam\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.cinam.univ-mrs.fr\/cinam\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.cinam.univ-mrs.fr\/cinam\/en\/wp-json\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/www.cinam.univ-mrs.fr\/cinam\/en\/wp-json\/wp\/v2\/comments?post=4100"}],"version-history":[{"count":3,"href":"https:\/\/www.cinam.univ-mrs.fr\/cinam\/en\/wp-json\/wp\/v2\/posts\/4100\/revisions"}],"predecessor-version":[{"id":4223,"href":"https:\/\/www.cinam.univ-mrs.fr\/cinam\/en\/wp-json\/wp\/v2\/posts\/4100\/revisions\/4223"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.cinam.univ-mrs.fr\/cinam\/en\/wp-json\/wp\/v2\/media\/4165"}],"wp:attachment":[{"href":"https:\/\/www.cinam.univ-mrs.fr\/cinam\/en\/wp-json\/wp\/v2\/media?parent=4100"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.cinam.univ-mrs.fr\/cinam\/en\/wp-json\/wp\/v2\/categories?post=4100"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.cinam.univ-mrs.fr\/cinam\/en\/wp-json\/wp\/v2\/tags?post=4100"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}