{"id":18495,"date":"2016-01-05T12:00:00","date_gmt":"2016-01-05T12:00:00","guid":{"rendered":"https:\/\/dev.inrs.ca\/promising-new-approach-for-controlled-fabrication-of-carbon-nanostructures\/"},"modified":"2020-11-19T15:00:00","modified_gmt":"2020-11-19T20:00:00","slug":"promising-new-approach-for-controlled-fabrication-of-carbon-nanostructures","status":"publish","type":"post","link":"https:\/\/dev.inrs.ca\/en\/news\/promising-new-approach-for-controlled-fabrication-of-carbon-nanostructures\/","title":{"rendered":"Promising new approach for controlled fabrication of carbon nanostructures"},"content":{"rendered":"\n

An international team of researchers including Professor Federico Rosei<\/a> and members of his group at INRS has developed a new strategy for fabricating atomically controlled carbon nanostructures used in molecular carbon-based electronics. An article <\/a>just published in the prestigious journal Nature Communications<\/a> presents their findings: the complete electronic structure of a conjugated organic polymer, and the influence of the substrate on its electronic properties.<\/strong><\/p>\n\n\n\n

\"\"<\/figure><\/div>\n\n\n\n

The researchers combined two procedures previously developed in Professor Rosei\u2019s lab\u2014molecular self-assembly and chain polymerization\u2014to produce a network of long-range poly(para-phenylene) (PPP) nanowires on a copper (Cu) surface. Using advanced technologies such as scanning tunneling microscopy and photoelectron spectroscopy as well as theoretical models, they were able to describe the morphology and electronic structure of these nanostructures.<\/p>\n\n\n\n

\u201cWe provide a complete description of the band structure and also highlight the strong interaction between the polymer and the substrate, which explains both the decreased bandgap and the metallic nature of the new chains. Even with this hybridization, the PPP bands display a quasi one-dimensional dispersion in conductive polymeric nanowires.\u201d <\/p>Professor\u00a0Federico Rosei<\/a>, one of the authors of the study<\/cite><\/blockquote>\n\n\n\n

Although further research is needed to fully describe the electronic properties of these nanostructures, the polymer\u2019s dispersion provides a spectroscopic record of the polymerization process of certain types of molecules on gold, silver, copper, and other surfaces. It\u2019s a promising approach for similar semiconductor studies\u2014an essential step in the development of actual devices.<\/p>\n\n\n\n

The results of the study could be used in designing organic nanostructures, with significant potential applications in nanoelectronics, including photovoltaic devices, field-effect transistors, light-emitting diodes, and sensors.<\/p>\n\n\n\n

About the article<\/strong><\/h2>\n\n\n\n

This study was designed by Yannick Fagot-Revurat and Daniel Malterre of Universit\u00e9 de Lorraine\/CNRS, Federico Rosei of INRS, Josh Lipton-Duffin of the Institute for Future Environments (Australia), Giorgio Contini of the Italian National Research Council, and Dmytro F. Perepichka of McGill University. The results are published in Nature Communications (DOI :10.1038\/NCOMMS10235) in an article entitled \u201cQuasi one-Dimensional Band Dispersion and Surface Metallization in Long Range Ordered Polymeric Wires.\u201d The researchers were generously supported by Conseil Franco-Qu\u00e9b\u00e9cois de coop\u00e9ration universitaire, the France\u2013Italy International Program for Scientific Cooperation, the Natural Sciences and Engineering Research Council of Canada, Fonds qu\u00e9b\u00e9cois de recherche \u2013 Nature et technologies, and a Qu\u00e9bec MEIE grant (in collaboration with Belgium). <\/p>\n","protected":false},"excerpt":{"rendered":"

An international team of researchers including Professor Federico Rosei and members of his group at INRS has developed a new strategy for fabricating atomically controlled carbon nanostructures used in molecular carbon-based electronics. An article just published in the prestigious journal Nature Communications presents their findings: the complete electronic structure of a conjugated organic polymer, and the influence of the substrate on its electronic properties.<\/p>\n","protected":false},"author":1,"featured_media":34690,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[688],"tags":[],"sectors":[735,731],"class_list":["post-18495","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-innover-a-linrs-en","sectors-energie-en","sectors-materiaux-en"],"acf":[],"yoast_head":"\nPromising new approach for controlled fabrication of carbon nanostructures | INRS<\/title>\n<meta name=\"description\" content=\"An international team of researchers including Professor Federico Rosei and members of his group at INRS has developed a new strategy for fabricating\" \/>\n<meta name=\"robots\" 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