{"id":65010,"date":"2020-09-11T18:30:00","date_gmt":"2020-09-11T15:30:00","guid":{"rendered":"https:\/\/en.buradabiliyorum.com\/understanding-electron-transport-in-graphene-nanoribbons\/"},"modified":"2020-09-11T18:30:00","modified_gmt":"2020-09-11T15:30:00","slug":"understanding-electron-transport-in-graphene-nanoribbons","status":"publish","type":"post","link":"https:\/\/buradabiliyorum.com\/en\/understanding-electron-transport-in-graphene-nanoribbons\/","title":{"rendered":"#Understanding electron transport in graphene nanoribbons"},"content":{"rendered":"

“#Understanding electron transport in graphene nanoribbons<\/strong>”<\/p>\n

\n
\n
\n
\"graphene\"<\/img>
\n This visualisation shows layers of graphene used for membranes. Credit: University of Manchester
\n <\/figcaption><\/figure>\n<\/div>\n<\/div>\n

Graphene is a modern wonder material possessing unique properties of strength, flexibility and conductivity whilst being abundant and remarkably cheap to produce, lending it to a multitude of useful app<\/a>lications\u2014especially true when these 2-D atom-thick sheets of carbon are split into narrow strip<\/a>s known as Graphene Nanoribbons (GNRs).<\/p>\n

\n <\/section>\n

New research published in EPJ Plus<\/i>, authored by Kristians Cernevics, Michele Pizzochero, and Oleg V. Yazyev, Ecole Polytechnique Federale de Lausanne (EPFL), Lausanne, Switzerland, aims to better understand the electron transport properties of GNRs and how they are affected by bonding with aromatics. This is a key step in designing technology<\/a> such chemosensors.<\/p>\n

“Graphene nanoribbons\u2014strips of graphene just few nanometres wide\u2014are a new and exciting class of nanostructures that have emerged as potential building blocks for a wide variety of technological applications,” Cernevics says.
\nThe team performed their investigation with the two forms of GNR, armchair and zigzag, which are categorized by the shape of the edges of the material. These properties are predominantly created by the process used to synthesize them. In addition to this, the EPFL team experimented p-polyphenyl and polyacene groups of increasing length.
\n“We have employed advanced computer simulations to find out how electrical conductivity of graphene nanoribbons is affected by chemical functionalisation with guest organic molecules that consist of chains composed of an increasing number of aromatic rings,” says Cernevics.
\nThe team discovered that the conductance at energies matching the energy levels of the corresponding isolated molecule was reduced by one quantum, or left unaffected based on whether the number of aromatic rings possessed by the bound molecule was odd or even. The study shows this ‘even-odd effect’ originates from a subtle interplay between the electronic states of the guest molecule spatially localized on the binding sites and those of the host nanoribbon.
\n“Our findings demonstrate that the interaction of the guest organic molecules with the host graphene nanoribbon can be exploited to detect the ‘fingerprint’ of the guest aromatic molecule, and additionally offer a firm theoretical ground to understand this effect,” Cernevics concludes: “Overall, our work promotes the validity of graphene nanoribbons as promising candidates for next-generation chemosensing devices.”
\nThese potentially wearable or implantable sensors will rely heavily on GRBs due to their electrical properties and could spearhead a personalized health revolution by tracking specific biomarkers in patients.<\/p>\n

\n<\/hr>\n
\n<\/hr>\n

More information:<\/strong>
\n Kristi\u0101ns \u010cer\u0146evi\u010ds et al, Even\u2013odd conductance effect in graphene nanoribbons induced by edge functionalization with aromatic molecules: basis for novel chemosensors, The European Physical Journal Plus<\/i> (2020). DOI: 10.1140\/epjp\/s13360-020-00696-y<\/p>\n

\n Citation<\/strong>:
\n Understanding electron transport in graphene nanoribbons (2020, September 11)
\n retrieved 11 September 2020
\n from https:\/\/phys.org\/news<\/a>\/2020-09-electron-graphene-nanoribbons.html<\/p>\n

This document is subject to copyright. Apart from any fair dealing for the purpose of private study or research, no
\n part may be reproduced without the written permission. The content is provided for information purposes only.<\/p><\/div>\n<\/p><\/div>\n

\n

If you want to read more Like this articles, you can visit our Science category.<\/a><\/span><\/strong>\n<\/p><\/blockquote>\n

\n

if you want to watch Movies<\/a> or Tv Shows go to Dizi.BuradaBiliyorum.Com<\/a> <\/span> for forums sites go to Forum.BuradaBiliyorum.Com<\/a><\/span><\/strong><\/p>\n<\/blockquote>\n","protected":false},"excerpt":{"rendered":"

“#Understanding electron transport in graphene nanoribbons” This visualisation shows layers of graphene used for membranes. Credit: University of Manchester Graphene is a modern wonder material possessing unique properties of strength, flexibility and conductivity whilst being abundant and remarkably cheap to produce, lending it to a multitude of useful applications\u2014especially true when these 2-D atom-thick sheets…<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"fifu_image_url":"","fifu_image_alt":"","footnotes":""},"categories":[16],"tags":[12450,68003],"class_list":["post-65010","post","type-post","status-publish","format-standard","hentry","category-sciencee","tag-nanophysics-nanomaterials","tag-understanding-electron-transport-in-graphene-nanoribbons"],"_links":{"self":[{"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/posts\/65010","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/comments?post=65010"}],"version-history":[{"count":0,"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/posts\/65010\/revisions"}],"wp:attachment":[{"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/media?parent=65010"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/categories?post=65010"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/tags?post=65010"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}