{"id":12945,"date":"2017-04-07T09:18:00","date_gmt":"2017-04-07T07:18:00","guid":{"rendered":"https:\/\/www.iemn.fr\/articles-temporaires-anglais\/sputtered-titanium-carbide-thick-film-for-high-areal-energy-on-chip-carbon-based-micro-supercapacitors-2.html"},"modified":"2017-04-07T15:18:47","modified_gmt":"2017-04-07T13:18:47","slug":"sputtered-titanium-carbide-thick-film-for-high-areal-energy-on-chip-carbon-based-micro-supercapacitors","status":"publish","type":"post","link":"https:\/\/www.iemn.fr\/en\/news\/sputtered-titanium-carbide-thick-film-for-high-areal-energy-on-chip-carbon-based-micro-supercapacitors.html","title":{"rendered":"Sputtered Titanium Carbide Thick Film for High Areal Energy on Chip Carbon-Based Micro-Supercapacitors"},"content":{"rendered":"<p><strong><span style=\"color: #000000;\">Manon L\u00e9tiche, Kevin Brousse, Arnaud Demorti\u00e8re, Peihua Huang, Barbara Daffos,S\u00e9bastien Pinaud, Marc Respaud, Bruno Chaudret, Pascal Roussel, Lionel Buchaillot, Pierre Louis Taberna, Patrice Simon, and Christophe Lethien*<\/span><\/strong><\/p>\n<p><a href=\"https:\/\/www.iemn.fr\/wp-content\/uploads\/2017\/04\/5.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"alignright wp-image-12943\" src=\"https:\/\/www.iemn.fr\/wp-content\/uploads\/2017\/04\/5.jpg\" alt=\"\" width=\"321\" height=\"218\" srcset=\"https:\/\/www.iemn.fr\/wp-content\/uploads\/2017\/04\/5.jpg 600w, https:\/\/www.iemn.fr\/wp-content\/uploads\/2017\/04\/5-300x204.jpg 300w\" sizes=\"auto, (max-width: 321px) 100vw, 321px\" \/><\/a>The areal energy density of on-chip micro-supercapacitors should be improved in order to obtain autonomous smart miniaturized sensors. To reach this goal, high surface capacitance electrode (&gt;100 mF cm\u22122) has to be produced while keeping low the footprint area. For carbide-derived carbon (CDC) micro-supercapacitors, the properties of the metal carbide precursor have to be fine-tuned to fabricate thick electrodes. The ad-atoms diffusion process and atomic peening effect occurring during the titanium carbide sputtering process are shown to be the key parameters to produce low stress, highly conductive, and thick TiC films. The sputtered TiC at 10\u22123 mbar exhibits a high stress level, limiting the thickness of the TiC-CDC electrode to 1.5 \u00b5m with an areal capacitance that is less than 55 mF cm\u22122 in aqueous electrolyte. The pressure increase up to 10\u22122 mbar induces a clear reduction of the stress level while the layer thickness increases without any degradation of the TiC electronic conductivity. The volumetric capacitance of the TiC-CDC electrodes is equal to 350 F cm\u22123 regardless of the level of pressure. High values of areal capacitance (&gt;100 mF cm\u22122) are achieved, whereas the TiC layer is relatively thick, which paves the way toward high-performance micro-supercapacitors.<\/p>\n<p><a href=\"https:\/\/www.iemn.fr\/wp-content\/uploads\/2017\/04\/logo-afmater.png\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-12948 alignleft\" src=\"https:\/\/www.iemn.fr\/wp-content\/uploads\/2017\/04\/logo-afmater.png\" alt=\"\" width=\"143\" height=\"64\" srcset=\"https:\/\/www.iemn.fr\/wp-content\/uploads\/2017\/04\/logo-afmater.png 341w, https:\/\/www.iemn.fr\/wp-content\/uploads\/2017\/04\/logo-afmater-300x135.png 300w\" sizes=\"auto, (max-width: 143px) 100vw, 143px\" \/><\/a>First published: 31 March 2017<br \/>\n&gt;&gt; <a href=\"http:\/\/onlinelibrary.wiley.com\/doi\/10.1002\/adfm.201606813\/abstract\">DOI: 10.1002\/adfm.201606813<\/a><\/p>\n<p>\u00a9 WILEY-VCH Verlag GmbH &amp; Co. KGaA, Weinheim<\/p>","protected":false},"excerpt":{"rendered":"<p>Manon L\u00e9tiche, Kevin Brousse, Arnaud Demorti\u00e8re, Peihua Huang, Barbara Daffos,S\u00e9bastien Pinaud, Marc Respaud, Bruno Chaudret, Pascal Roussel, Lionel Buchaillot, Pierre Louis Taberna, Patrice Simon, and Christophe Lethien* The areal energy density of on-chip micro-supercapacitors should be improved in order to obtain autonomous smart miniaturized sensors. To reach this goal, high surface capacitance electrode (&gt;100 mF [&hellip;]<\/p>","protected":false},"author":2,"featured_media":12942,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[31,12],"tags":[],"class_list":["post-12945","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-short-talk","category-news"],"_links":{"self":[{"href":"https:\/\/www.iemn.fr\/en\/wp-json\/wp\/v2\/posts\/12945","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.iemn.fr\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.iemn.fr\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.iemn.fr\/en\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.iemn.fr\/en\/wp-json\/wp\/v2\/comments?post=12945"}],"version-history":[{"count":0,"href":"https:\/\/www.iemn.fr\/en\/wp-json\/wp\/v2\/posts\/12945\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.iemn.fr\/en\/wp-json\/wp\/v2\/media\/12942"}],"wp:attachment":[{"href":"https:\/\/www.iemn.fr\/en\/wp-json\/wp\/v2\/media?parent=12945"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.iemn.fr\/en\/wp-json\/wp\/v2\/categories?post=12945"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.iemn.fr\/en\/wp-json\/wp\/v2\/tags?post=12945"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}