{"id":6829,"date":"2023-05-18T13:09:11","date_gmt":"2023-05-18T13:09:11","guid":{"rendered":"https:\/\/staging.asminternational.org\/edfas\/new-surface-coating-technology-increases-materials-electron-emission-seven-fold\/"},"modified":"2023-05-31T20:00:41","modified_gmt":"2023-05-31T20:00:41","slug":"new-surface-coating-technology-increases-materials-electron-emission-seven-fold","status":"publish","type":"post","link":"https:\/\/www.asminternational.org\/edfas\/new-surface-coating-technology-increases-materials-electron-emission-seven-fold\/","title":{"rendered":"New surface coating technology increases materials\u2019 electron emission seven-fold"},"content":{"rendered":"

An international research group with researchers from China, Japan, and the Los Alamos National Laboratory, Los Alamos, NM, developed a new surface coating technology that is capable of significantly increasing electron emission in materials. The breakthrough is expected to improve the production of high-efficiency electron sources, and lead to increased performances in electron microscopes, electron beam lithography systems, and synchrotron radiation facilities.<\/p>\n

Free electrons are those not bound to a specific atom or molecule, wondering freely within a material. They play a vital role in a wide range of applications, from photoreactors and microscopes to accelerators.<\/p>\n

One property that measures the performance of free electrons is work function: the minimum energy required for electrons to escape from a materials surface into a vacuum. Materials with a low work function require less energy to remove electrons and make them free to move around; whereas materials with a high work function need more energy to remove electrons.<\/p>\n

A lower work function is critical for enhancing the performance of electron sources and contributes to the development of advanced materials and technologies that can have practical applications in various fields, such as electron microscopy, accelerator science, and semiconductor manufacturing.<\/p>\n

Currently, hexaboride lanthanum (LaB6) is widely employed for electron sources because of its high stability and durability. To improve LaB6’s efficiency, the research group turned to hexagonal boron nitride (hBN), a versatile chemical compound that is thermally stable, possesses a high melting point, and is very useful in harsh environments.<\/p>\n

\u201cWe discovered that coating LaB6 with hBN lowered the work function from 2.2 eV to 1.9 eV and increased electron emission,\u201d said Shuichi Ogawa, co-author of the study published in Applied Physics Letters<\/em>, \u201cWork function lowering of LaB6 by monolayer hexagonal boron nitride coating for improved photo- and thermionic-cathodes\u201d and current associate professor at Nihon University (formerly at Tohoku University’s Institute of Multidisciplinary Research for Advanced Materials).<\/p>\n

Photoemission electron microcopy and thermionic emission electron microscopy confirmed the lower work function compared to non-coated and graphene coated regions.<\/p>\n

Looking ahead, Ogawa and his colleagues hope to hone the coating technique. \u201cWe still need to develop a technique for coating hBN onto LaB6’s non-oxidized surface, as well as a way to coat LaB6 electron sources with a pointed triangular shape.\u201d<\/p>\n

 <\/p>\n

Image \u2013 Photoemission electron microscopy (PEEM) and thermal electron emission microscopy (TEEM) images of LaB6 surface coated with graphene (Gr) and hBN. Bright areas in the images indicate a large number of emitted electrons. Courtesy of: Tohoku University.<\/em><\/p>\n

 <\/p>\n

For more information:<\/p>\n

Los Alamos National Laboratory<\/p>\n

https:\/\/www.lanl.gov\/<\/a><\/p>\n

 <\/p>\n

Tohoku University<\/p>\n

http:\/\/www.tohoku.ac.jp\/en\/<\/a><\/p>\n

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

An international research group with researchers from China, Japan, and the Los Alamos National Laboratory, Los Alamos, NM, developed a new surface coating technology that is capable of significantly increasing electron emission in materials.<\/p>\n","protected":false},"author":63081,"featured_media":6842,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[514,515,499,457,501,441,516,435,436],"tags":[],"class_list":["post-6829","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-coating-microstructures-and-properties","category-coatings-and-linings","category-electrical-properties","category-electronic-materials","category-electronics-and-microelectronics","category-materials-properties-and-performance","category-metal-coatings","category-news","category-news-articles"],"yoast_head":"\nNew surface coating technology increases materials\u2019 electron emission seven-fold - 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\/new-surface-coating-technology-increases-materials-electron-emission-seven-fold\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"New surface coating technology increases materials\u2019 electron emission seven-fold - Electronic Device Failure Analysis Society\" \/>\n<meta property=\"og:description\" content=\"An international research group with researchers from China, Japan, and the Los Alamos National Laboratory, Los Alamos, NM, developed a new surface coating technology that is capable of significantly increasing electron emission in materials.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.asminternational.org\/edfas\/new-surface-coating-technology-increases-materials-electron-emission-seven-fold\/\" \/>\n<meta property=\"og:site_name\" content=\"Electronic Device Failure Analysis Society\" \/>\n<meta property=\"article:published_time\" content=\"2023-05-18T13:09:11+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2023-05-31T20:00:41+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.asminternational.org\/app\/uploads\/sites\/41\/2023\/05\/EDFAS__052523__TU__250-3.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"250\" \/>\n\t<meta property=\"og:image:height\" content=\"57\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"Steven Gasparis\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Steven Gasparis\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"2 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/www.asminternational.org\\\/edfas\\\/new-surface-coating-technology-increases-materials-electron-emission-seven-fold\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.asminternational.org\\\/edfas\\\/new-surface-coating-technology-increases-materials-electron-emission-seven-fold\\\/\"},\"author\":{\"name\":\"Steven Gasparis\",\"@id\":\"https:\\\/\\\/www.asminternational.org\\\/edfas\\\/#\\\/schema\\\/person\\\/bfe45c658c45c81940fb969dd76cf9d3\"},\"headline\":\"New surface coating technology increases materials\u2019 electron emission seven-fold\",\"datePublished\":\"2023-05-18T13:09:11+00:00\",\"dateModified\":\"2023-05-31T20:00:41+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/www.asminternational.org\\\/edfas\\\/new-surface-coating-technology-increases-materials-electron-emission-seven-fold\\\/\"},\"wordCount\":443,\"publisher\":{\"@id\":\"https:\\\/\\\/www.asminternational.org\\\/edfas\\\/#organization\"},\"image\":{\"@id\":\"https:\\\/\\\/www.asminternational.org\\\/edfas\\\/new-surface-coating-technology-increases-materials-electron-emission-seven-fold\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/cdn-prd-main.asm-media.cloud\\\/uploads\\\/sites\\\/41\\\/2023\\\/05\\\/EDFAS__052523__TU__250-3.jpg\",\"articleSection\":[\"coating-microstructures-and-properties\",\"coatings-and-linings\",\"electrical-properties\",\"Electronic Materials\",\"Electronics and Microelectronics\",\"Materials Properties and Performance\",\"Metal Coatings\",\"news\",\"News Articles\"],\"inLanguage\":\"en-US\"},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/www.asminternational.org\\\/edfas\\\/new-surface-coating-technology-increases-materials-electron-emission-seven-fold\\\/\",\"url\":\"https:\\\/\\\/www.asminternational.org\\\/edfas\\\/new-surface-coating-technology-increases-materials-electron-emission-seven-fold\\\/\",\"name\":\"New surface coating technology increases materials\u2019 electron emission seven-fold - Electronic Device Failure Analysis Society\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.asminternational.org\\\/edfas\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/www.asminternational.org\\\/edfas\\\/new-surface-coating-technology-increases-materials-electron-emission-seven-fold\\\/#primaryimage\"},\"image\":{\"@id\":\"https:\\\/\\\/www.asminternational.org\\\/edfas\\\/new-surface-coating-technology-increases-materials-electron-emission-seven-fold\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/cdn-prd-main.asm-media.cloud\\\/uploads\\\/sites\\\/41\\\/2023\\\/05\\\/EDFAS__052523__TU__250-3.jpg\",\"datePublished\":\"2023-05-18T13:09:11+00:00\",\"dateModified\":\"2023-05-31T20:00:41+00:00\",\"breadcrumb\":{\"@id\":\"https:\\\/\\\/www.asminternational.org\\\/edfas\\\/new-surface-coating-technology-increases-materials-electron-emission-seven-fold\\\/#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/www.asminternational.org\\\/edfas\\\/new-surface-coating-technology-increases-materials-electron-emission-seven-fold\\\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\\\/\\\/www.asminternational.org\\\/edfas\\\/new-surface-coating-technology-increases-materials-electron-emission-seven-fold\\\/#primaryimage\",\"url\":\"https:\\\/\\\/cdn-prd-main.asm-media.cloud\\\/uploads\\\/sites\\\/41\\\/2023\\\/05\\\/EDFAS__052523__TU__250-3.jpg\",\"contentUrl\":\"https:\\\/\\\/cdn-prd-main.asm-media.cloud\\\/uploads\\\/sites\\\/41\\\/2023\\\/05\\\/EDFAS__052523__TU__250-3.jpg\",\"width\":250,\"height\":57},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/www.asminternational.org\\\/edfas\\\/new-surface-coating-technology-increases-materials-electron-emission-seven-fold\\\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\\\/\\\/www.asminternational.org\\\/edfas\\\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"New surface coating technology increases materials\u2019 electron emission seven-fold\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/www.asminternational.org\\\/edfas\\\/#website\",\"url\":\"https:\\\/\\\/www.asminternational.org\\\/edfas\\\/\",\"name\":\"Electronic Device Failure Analysis Society\",\"description\":\"Electronic Device Failure Analysis Society\",\"publisher\":{\"@id\":\"https:\\\/\\\/www.asminternational.org\\\/edfas\\\/#organization\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\\\/\\\/www.asminternational.org\\\/edfas\\\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"en-US\"},{\"@type\":\"Organization\",\"@id\":\"https:\\\/\\\/www.asminternational.org\\\/edfas\\\/#organization\",\"name\":\"Electronic Device Failure Analysis Society\",\"url\":\"https:\\\/\\\/www.asminternational.org\\\/edfas\\\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\\\/\\\/www.asminternational.org\\\/edfas\\\/#\\\/schema\\\/logo\\\/image\\\/\",\"url\":\"https:\\\/\\\/cdn-prd-main.asm-media.cloud\\\/uploads\\\/sites\\\/41\\\/2022\\\/10\\\/layout_set_logo.png\",\"contentUrl\":\"https:\\\/\\\/cdn-prd-main.asm-media.cloud\\\/uploads\\\/sites\\\/41\\\/2022\\\/10\\\/layout_set_logo.png\",\"width\":360,\"height\":95,\"caption\":\"Electronic Device Failure Analysis Society\"},\"image\":{\"@id\":\"https:\\\/\\\/www.asminternational.org\\\/edfas\\\/#\\\/schema\\\/logo\\\/image\\\/\"}},{\"@type\":\"Person\",\"@id\":\"https:\\\/\\\/www.asminternational.org\\\/edfas\\\/#\\\/schema\\\/person\\\/bfe45c658c45c81940fb969dd76cf9d3\",\"name\":\"Steven Gasparis\",\"url\":\"https:\\\/\\\/www.asminternational.org\\\/edfas\\\/author\\\/asteven\\\/\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"New surface coating technology increases materials\u2019 electron emission seven-fold - Electronic Device Failure Analysis Society","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/www.asminternational.org\/edfas\/new-surface-coating-technology-increases-materials-electron-emission-seven-fold\/","og_locale":"en_US","og_type":"article","og_title":"New surface coating technology increases materials\u2019 electron emission seven-fold - Electronic Device Failure Analysis Society","og_description":"An international research group with researchers from China, Japan, and the Los Alamos National Laboratory, Los Alamos, NM, developed a new surface coating technology that is capable of significantly increasing electron emission in materials.","og_url":"https:\/\/www.asminternational.org\/edfas\/new-surface-coating-technology-increases-materials-electron-emission-seven-fold\/","og_site_name":"Electronic Device Failure Analysis Society","article_published_time":"2023-05-18T13:09:11+00:00","article_modified_time":"2023-05-31T20:00:41+00:00","og_image":[{"width":250,"height":57,"url":"https:\/\/www.asminternational.org\/app\/uploads\/sites\/41\/2023\/05\/EDFAS__052523__TU__250-3.jpg","type":"image\/jpeg"}],"author":"Steven Gasparis","twitter_card":"summary_large_image","twitter_misc":{"Written by":"Steven Gasparis","Est. reading time":"2 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/www.asminternational.org\/edfas\/new-surface-coating-technology-increases-materials-electron-emission-seven-fold\/#article","isPartOf":{"@id":"https:\/\/www.asminternational.org\/edfas\/new-surface-coating-technology-increases-materials-electron-emission-seven-fold\/"},"author":{"name":"Steven Gasparis","@id":"https:\/\/www.asminternational.org\/edfas\/#\/schema\/person\/bfe45c658c45c81940fb969dd76cf9d3"},"headline":"New surface coating technology increases materials\u2019 electron emission seven-fold","datePublished":"2023-05-18T13:09:11+00:00","dateModified":"2023-05-31T20:00:41+00:00","mainEntityOfPage":{"@id":"https:\/\/www.asminternational.org\/edfas\/new-surface-coating-technology-increases-materials-electron-emission-seven-fold\/"},"wordCount":443,"publisher":{"@id":"https:\/\/www.asminternational.org\/edfas\/#organization"},"image":{"@id":"https:\/\/www.asminternational.org\/edfas\/new-surface-coating-technology-increases-materials-electron-emission-seven-fold\/#primaryimage"},"thumbnailUrl":"https:\/\/cdn-prd-main.asm-media.cloud\/uploads\/sites\/41\/2023\/05\/EDFAS__052523__TU__250-3.jpg","articleSection":["coating-microstructures-and-properties","coatings-and-linings","electrical-properties","Electronic Materials","Electronics and Microelectronics","Materials Properties and Performance","Metal Coatings","news","News Articles"],"inLanguage":"en-US"},{"@type":"WebPage","@id":"https:\/\/www.asminternational.org\/edfas\/new-surface-coating-technology-increases-materials-electron-emission-seven-fold\/","url":"https:\/\/www.asminternational.org\/edfas\/new-surface-coating-technology-increases-materials-electron-emission-seven-fold\/","name":"New surface coating technology increases materials\u2019 electron emission seven-fold - Electronic Device Failure Analysis Society","isPartOf":{"@id":"https:\/\/www.asminternational.org\/edfas\/#website"},"primaryImageOfPage":{"@id":"https:\/\/www.asminternational.org\/edfas\/new-surface-coating-technology-increases-materials-electron-emission-seven-fold\/#primaryimage"},"image":{"@id":"https:\/\/www.asminternational.org\/edfas\/new-surface-coating-technology-increases-materials-electron-emission-seven-fold\/#primaryimage"},"thumbnailUrl":"https:\/\/cdn-prd-main.asm-media.cloud\/uploads\/sites\/41\/2023\/05\/EDFAS__052523__TU__250-3.jpg","datePublished":"2023-05-18T13:09:11+00:00","dateModified":"2023-05-31T20:00:41+00:00","breadcrumb":{"@id":"https:\/\/www.asminternational.org\/edfas\/new-surface-coating-technology-increases-materials-electron-emission-seven-fold\/#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/www.asminternational.org\/edfas\/new-surface-coating-technology-increases-materials-electron-emission-seven-fold\/"]}]},{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/www.asminternational.org\/edfas\/new-surface-coating-technology-increases-materials-electron-emission-seven-fold\/#primaryimage","url":"https:\/\/cdn-prd-main.asm-media.cloud\/uploads\/sites\/41\/2023\/05\/EDFAS__052523__TU__250-3.jpg","contentUrl":"https:\/\/cdn-prd-main.asm-media.cloud\/uploads\/sites\/41\/2023\/05\/EDFAS__052523__TU__250-3.jpg","width":250,"height":57},{"@type":"BreadcrumbList","@id":"https:\/\/www.asminternational.org\/edfas\/new-surface-coating-technology-increases-materials-electron-emission-seven-fold\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/www.asminternational.org\/edfas\/"},{"@type":"ListItem","position":2,"name":"New surface coating technology increases materials\u2019 electron emission seven-fold"}]},{"@type":"WebSite","@id":"https:\/\/www.asminternational.org\/edfas\/#website","url":"https:\/\/www.asminternational.org\/edfas\/","name":"Electronic Device Failure Analysis Society","description":"Electronic Device Failure Analysis Society","publisher":{"@id":"https:\/\/www.asminternational.org\/edfas\/#organization"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/www.asminternational.org\/edfas\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"en-US"},{"@type":"Organization","@id":"https:\/\/www.asminternational.org\/edfas\/#organization","name":"Electronic Device Failure Analysis Society","url":"https:\/\/www.asminternational.org\/edfas\/","logo":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/www.asminternational.org\/edfas\/#\/schema\/logo\/image\/","url":"https:\/\/cdn-prd-main.asm-media.cloud\/uploads\/sites\/41\/2022\/10\/layout_set_logo.png","contentUrl":"https:\/\/cdn-prd-main.asm-media.cloud\/uploads\/sites\/41\/2022\/10\/layout_set_logo.png","width":360,"height":95,"caption":"Electronic Device Failure Analysis Society"},"image":{"@id":"https:\/\/www.asminternational.org\/edfas\/#\/schema\/logo\/image\/"}},{"@type":"Person","@id":"https:\/\/www.asminternational.org\/edfas\/#\/schema\/person\/bfe45c658c45c81940fb969dd76cf9d3","name":"Steven Gasparis","url":"https:\/\/www.asminternational.org\/edfas\/author\/asteven\/"}]}},"acf":[],"_links":{"self":[{"href":"https:\/\/www.asminternational.org\/edfas\/wp-json\/wp\/v2\/posts\/6829","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.asminternational.org\/edfas\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.asminternational.org\/edfas\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.asminternational.org\/edfas\/wp-json\/wp\/v2\/users\/63081"}],"replies":[{"embeddable":true,"href":"https:\/\/www.asminternational.org\/edfas\/wp-json\/wp\/v2\/comments?post=6829"}],"version-history":[{"count":0,"href":"https:\/\/www.asminternational.org\/edfas\/wp-json\/wp\/v2\/posts\/6829\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.asminternational.org\/edfas\/wp-json\/wp\/v2\/media\/6842"}],"wp:attachment":[{"href":"https:\/\/www.asminternational.org\/edfas\/wp-json\/wp\/v2\/media?parent=6829"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.asminternational.org\/edfas\/wp-json\/wp\/v2\/categories?post=6829"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.asminternational.org\/edfas\/wp-json\/wp\/v2\/tags?post=6829"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}