{"id":51087,"date":"2021-03-16T09:03:00","date_gmt":"2021-03-16T13:03:00","guid":{"rendered":"https:\/\/dev.inrs.ca\/?p=51087"},"modified":"2021-03-16T09:03:08","modified_gmt":"2021-03-16T13:03:08","slug":"a-promising-breakthrough-for-a-better-design-of-electronic-materials","status":"publish","type":"post","link":"https:\/\/dev.inrs.ca\/en\/news\/a-promising-breakthrough-for-a-better-design-of-electronic-materials\/","title":{"rendered":"A promising breakthrough for a better design of electronic materials"},"content":{"rendered":"\n

A deeper understanding of molecular vibrations can increase electron velocity in semiconductor materials.<\/strong><\/p>\n\n\n\n

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Adobe Stock<\/em> Photo<\/em><\/figcaption><\/figure><\/div>\n\n\n\n
<\/div>\n\n\n\n

Finding the best materials for tomorrow\u2019s electronics is the goal of Professor Emanuele Orgiu<\/a> of the Institut national de la recherche scientifique (INRS). Among the materials in which Professor Orgiu is interested, some are made of molecules that can conduct electricity. He has demonstrated the role played by molecular vibrations on electron conductivity on crystals of such materials. This finding is important for applications of these molecular materials in electronics, energy and information storage. The study<\/a>, conducted in collaboration with a team from the INRS and the University of Strasbourg (France), was published in the prestigious Advanced Materials<\/em><\/a> journal.<\/p>\n\n\n\n

Scientists were interested in observing the relationship between the structure of materials and their ability to conduct electricity. To this end, they measured the speed of propagation of electrons in crystals formed by these molecules. In their study, the authors compared two perylene diimide derivatives, which are semiconducting molecules of interest because of their use on flexible devices, smart clothes or foldable electronics. The two compounds encompassed within the study have similar chemical structure but featured very different conduction properties.<\/p>\n\n\n\n

With the goal of determining what caused this difference, the research group was able to establish that the different molecular vibrations composing the material were responsible for the different electrical behaviour observed in devices. The team is the first to demonstrate which vibrations have the greatest influence on electron flows.<\/p>\n\n\n\n

\u201cFor a current to flow through a material, electrons must \u2018hop\u2019 from one molecule to the neighbouring one. Depending on the level of \u2018movement\u2019 of the molecules, which depends on the amplitude and energy of the related vibrations (called phonons), the electrons can move more or less easily through the material.\u201d<\/p>Professor Emanuele Orgiu, scientific Director of the Molecular and Device Physics Laboratory<\/a>.<\/cite><\/blockquote>\n\n\n\n


An Ad Hoc Molecular Design to Make Electrons Travel Faster<\/strong><\/h2>\n\n\n\n

This breakthrough paves the way for the development of even more efficient materials for electronics. \u201cBy knowing what type of vibrations allows charges to move more easily, we are providing chemists with a formula for synthesizing the right materials, rather than going in blindly,\u201d explains Marc-Antoine Stoeckel. This research opens up new applications that could not be envisaged with silicon, the most widely used material in electronics, including computers.  <\/p>\n\n\n\n

Professor Orgiu collaborated with INRS Professor Luca Razzari<\/a> to measure the vibrations of the molecules. The two researchers are now working on a new spectroscopic technique that would enable them to visualize the vibrations when electrons are present. This will allow them to see if charges affect molecular vibrations.<\/p>\n\n\n\n

Professor Orgiu started this research while he was a professor at the University of Strasbourg. He co-supervised the thesis of Marc-Antoine Stoeckel, at the time a doctoral student at the University of Strasbourg and first author of the study, with Professor Paolo Samor\u00ec. <\/p>\n\n\n\n

About the Study<\/strong><\/h3>\n\n\n\n

The article \u201cAnalysis of External and Internal Disorder to Understand Band-Like Transport in n-Type Organic Semiconductors<\/a>\u201d, by Marc-Antoine Stoeckel, Xin Jin, Young-Gyun Jeong, Luca Razzari, Paolo Samor\u00ec, and Emanuele Orgiu, among others, has been published in the Advanced Materials<\/em> journal. The study received financial support from the Natural Sciences and Engineering Research Council of Canada (NSERC)<\/a> and the Fonds de Recherche du Qu\u00e9bec – Nature et Technologies (FRQNT)<\/a>. <\/p>\n","protected":false},"excerpt":{"rendered":"

A deeper understanding of molecular vibrations can increase electron velocity in semiconductor materials, according to a study by Professor Emanuele Orgiu.<\/p>\n","protected":false},"author":392,"featured_media":51145,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[688],"tags":[],"sectors":[731],"class_list":["post-51087","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-innover-a-linrs-en","sectors-materiaux-en"],"acf":[],"yoast_head":"\nA promising breakthrough for a better design of electronic materials | INRS<\/title>\n<meta name=\"description\" content=\"A deeper understanding of molecular vibrations can increase electron velocity in semiconductor materials, according to a study by Professor Emanuele Orgiu.\" \/>\n<meta name=\"robots\" content=\"noindex, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" 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