{"id":4319,"date":"2015-04-20T01:42:41","date_gmt":"2015-04-20T01:42:41","guid":{"rendered":"https:\/\/staging.asminternational.org\/edfas\/results\/-\/journal_content\/56\/10192\/25027142\/NEWS\/"},"modified":"2023-02-07T04:53:17","modified_gmt":"2023-02-07T04:53:17","slug":"eutectic-gallium-indium-nanoparticles-developed-for-inkjet-printing-of-electronic-circuits","status":"publish","type":"post","link":"https:\/\/www.asminternational.org\/edfas\/results\/-\/journal_content\/56\/10192\/25027142\/NEWS\/","title":{"rendered":"Eutectic gallium-indium nanoparticles developed for inkjet printing of electronic circuits"},"content":{"rendered":"

\n\tPurdue University, West Lafayette, Ind., reports that researchers have developed eutectic gallium-indium nanoparticles coated with Ga2<\/sub><\/span>O3<\/sub><\/span> or thiol and suspended in ethanol for inkjet printing of electronic circuits. A printable ink is made by dispersing the liquid metal in a non-metallic solvent using ultrasound, which breaks up the bulk liquid metal into nanoparticles. This nanoparticle-filled ink is compatible with inkjet printing.<\/p>\n

\n\t“Liquid metal in its native form is not inkjet-able,” says Assistant Professor of Mechanical Engineering Rebecca Kramer. “So what we do is create liquid metal nanoparticles that are small enough to pass through an inkjet nozzle. Sonicating liquid metal in a carrier solvent, such as ethanol, both creates the nanoparticles and disperses them in the solvent. Then we can print the ink onto any substrate. The ethanol evaporates away so we are just left with liquid metal nanoparticles on a surface.”<\/p>\n

\n\tAfter printing, the nanoparticles must be rejoined by applying light pressure, which renders the material conductive. This step is necessary because the liquid-metal nanoparticles are initially coated with oxidized gallium, which acts as a skin that prevents electrical conductivity.<\/p>\n

\n\t“But it’s a fragile skin, so when you apply pressure it breaks the skin and everything coalesces into one uniform film,” Prof. Kramer says. “We can do this either by stamping or by dragging something across the surface, such as the sharp edge of a silicon tip.” <\/p>\n

\n\tThe approach makes it possible to select which portions to activate depending on particular designs, suggesting that a blank film might be manufactured for a multitude of potential applications.<\/p>\n

\n\twww.purdue.edu<\/a><\/p>\n

\n\t <\/p>\n

\n\t <\/p>\n","protected":false},"excerpt":{"rendered":"

Purdue University, West Lafayette, Ind., reports that researchers have developed eutectic gallium-indium nanoparticles coated with Ga2O3 or thiol and suspended in ethanol for inkjet printing of electronic circuits.<\/p>\n","protected":false},"author":63082,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[434,450,438,435,436,1],"tags":[],"class_list":["post-4319","post","type-post","status-publish","format-standard","hentry","category-electronics","category-general","category-nanotechnology","category-news","category-news-articles","category-uncategorized"],"yoast_head":"\nEutectic gallium-indium nanoparticles developed for inkjet printing of electronic circuits - Electronic Device Failure Analysis Society<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.asminternational.org\/edfas\/results\/-\/journal_content\/56\/10192\/25027142\/NEWS\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Eutectic gallium-indium nanoparticles developed for inkjet printing of electronic circuits - 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