{"id":190870,"date":"2016-11-28T04:07:47","date_gmt":"2016-11-28T04:07:47","guid":{"rendered":"https:\/\/eenewseurope.artwhere.co\/led-uv-sur-support-mince-et-flexible\/"},"modified":"2016-11-28T04:07:47","modified_gmt":"2016-11-28T04:07:47","slug":"led-uv-sur-support-mince-et-flexible","status":"publish","type":"post","link":"https:\/\/www.ecinews.fr\/fr\/led-uv-sur-support-mince-et-flexible\/","title":{"rendered":"LED UV sur support mince et flexible"},"content":{"rendered":"

Le rapport des chercheurs \u00ab\u00a0Nanowire LEDs grown directly on flexible metal foil\u00a0\u00bb  pr\u00e9sent\u00e9 dans la lettre \u00ab\u00a0Applied Physics\u00a0\u00bb montrait une \u00e9mission d’\u00e9lectroluminescence de pointe d’environ 350 nm \u00e0 une tension d’enclenchement d’environ 5 V. Les fils individuels ont une hauteur de 200 nanom\u00e8tres et un diam\u00e8tre d’environ 20 \u00e0 50 nanom\u00e8tres.<\/p>\n

\"Nanofiles
Nanofiles cultiv\u00e9s sur feuille de titane \u00e0 l’Ohio State
\nUniversity. Image de J. May Brelon, avec la courtoisie de
\nL’Ohio State University.<\/figcaption><\/figure>\n

Jusqu’\u00e0 pr\u00e9sent, ce type de  LED UV n’avaient \u00e9t\u00e9 fabriqu\u00e9es que sur des substrats semi-conducteurs monocristallins rigides, ce qui les rendait beaucoup plus co\u00fbteux \u00e0 fabriquer que sur des feuilles m\u00e9talliques, de plus, l’\u00e9pitaxie par faisceaux mol\u00e9culaires est un proc\u00e9d\u00e9 qui se pr\u00eate bien \u00e0 de grandes surfaces.<\/p>\n

La recherche a \u00e9t\u00e9 financ\u00e9e par le Bureau de recherche de l’Arm\u00e9e et la \u00ab\u00a0National Science Foundation\u00a0\u00bb, avec un accent particulier sur le d\u00e9veloppement de rayons ultraviolets portables pour les soldats et d’autres application comme purifier l’eau potable et st\u00e9riliser l’\u00e9quipement m\u00e9dical. Les chercheurs exp\u00e9rimentent maintenant sur d’autres feuilles m\u00e9talliques comme l’acier et l’aluminium. L’universit\u00e9 Ohio State University est ouverte \u00e0 la licence de sa technologie pour l’industrialisation.<\/p>\n

Site de \u00ab\u00a0l’Ohio State University\u00a0\u00bb www.osu.edu<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"

En utilisant l’\u00e9pitaxie par faisceau mol\u00e9culaire pour faire pousser des nanofils AlGaN auto-assembl\u00e9s sur des feuilles de tantale et de titane, les chercheurs de l’Ohio State University ont con\u00e7u une Led UV qui pourrait \u00eatre non seulement l\u00e9g\u00e8re mais aussi flexible et \u00e9ventuellement fabriqu\u00e9 en rouleau.<\/p>\n","protected":false},"author":11,"featured_media":190871,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[883],"tags":[],"domains":[47],"ppma_author":[1143],"class_list":["post-190870","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-technologies","domains-electronique-eci"],"acf":[],"yoast_head":"LED UV sur support mince et flexible ...<\/title>\n<meta name=\"description\" content=\"En utilisant l'\u00e9pitaxie par faisceau mol\u00e9culaire pour faire pousser des nanofils AlGaN 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