{"id":2631,"date":"2020-06-30T14:35:38","date_gmt":"2020-06-30T06:35:38","guid":{"rendered":"https:\/\/cde.nus.edu.sg\/mse\/?page_id=2631"},"modified":"2020-06-30T18:28:45","modified_gmt":"2020-06-30T10:28:45","slug":"advanced-electron-microscopy","status":"publish","type":"page","link":"https:\/\/cde.nus.edu.sg\/mse\/advanced-electron-microscopy\/","title":{"rendered":"Advanced Electron Microscopy"},"content":{"rendered":"\n<h3 class=\"has-text-color wp-block-heading\" style=\"color:#e67c00\">Seeing atoms, performing optics &amp; chemistry at the nanoscale<\/h3>\n\n\n\n<p>The MSE Department at NUS is specialized in <strong>Scanning Transmission Electron Microscopy (STEM)<\/strong>: an electron beam with a diameter smaller than an atom is scanned over a material, to show its structure at atomic resolution. <\/p>\n\n\n\n<p>Atomic-resolution elemental mapping can also be performed with our STEM, using the techniques EDS and EELS (Energy-Dispersive X-ray Spectroscopy and Electron Energy-Loss Spectroscopy). It is even possible to measure optical properties of materials, such as the local band gap energy in semiconductors, and localized surface plasmon modes in noble metals.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1798\" height=\"636\" src=\"\/mse\/wp-content\/uploads\/sites\/4\/2020\/06\/Seeing-individual-atoms.png\" alt=\"Seeing Individual Atoms\" class=\"wp-image-2633\"\/><\/figure>\n\n\n\n<p>Being able to observe materials directly at atomic resolution allows us to measure new materials properties at surfaces and interfaces. For example: individual dopants and vacancies in 2D materials can be imaged. It is also possible to study microelectronic logic- or memory devices at the ultimate resolution, with the help of careful, site-specific sample preparation.<\/p>\n\n\n\n<p><\/p>\n\n\n\n<h3 class=\"has-very-dark-gray-color has-text-color wp-block-heading\">Our Instruments <\/h3>\n\n\n\n<ul class=\"rich-text editor-rich-text__editable block-editor-rich-text__editable is-selected\">\n<p><img decoding=\"async\" src=\"\/mse\/wp-content\/uploads\/sites\/4\/2020\/06\/Adv-Electron-Microscopy-2.png\" alt=\"\" width=\"26%\" align=\"right\" hspace=\"9\" vspace=\"9\"><\/p>\n<li>JEOL ARM200CFEG STEM with ASCOR aberration corrector,<\/li><li> Quantum ER EELS detector and Oxford X-Max EDS detector<\/li><li>DENSsolutions Lightning in-situ heating and biasing sample holder<\/li><li>Quantum Detectors Medipix3 MerlinEM S pixelated detector<\/li><li>FEI Versa 3D Focused Ion Beam (FIB)<\/li><li>Gatan Disc Grinder for sample preparation<\/li><li>Tools for sample handpolishing<\/li><li>Leica Ion Milling system<\/li><li>UHV baking chamber<\/li><\/ul>\n\n\n\n<p><\/p>\n\n\n\n<h3 class=\"has-very-dark-gray-color has-text-color has-text-align-left wp-block-heading\">Principle Investigators <\/h3>\n\n\n\n<div class=\"wp-block-group\"><div class=\"wp-block-group__inner-container is-layout-flow wp-block-group-is-layout-flow\">\n<a href=\"https:\/\/cde.nus.edu.sg\/mse\/staff\/he-qian\/\"><img decoding=\"async\" src=\"\/mse\/wp-content\/uploads\/sites\/4\/2020\/06\/Adv-Electron-Microscopy-3.png\" style=\"float: left; width: 23%; margin-right: 1%; margin-bottom: 0.5em;\"><\/a>\n\n<a href=\"https:\/\/cde.nus.edu.sg\/mse\/staff\/michel-bosman\/\"><img decoding=\"async\" src=\"\/mse\/wp-content\/uploads\/sites\/4\/2020\/06\/Adv-Electron-Microscopy-4.png\" style=\"float: left; width: 23%; margin-right: 1%; margin-bottom: 0.5em;\"><\/a>\n\n<a href=\"https:\/\/cde.nus.edu.sg\/mse\/staff\/gradecak-silvija\/\"><img decoding=\"async\" src=\"\/mse\/wp-content\/uploads\/sites\/4\/2020\/06\/Adv-Electron-Microscopy-5.png\" style=\"float: left; width: 23%; margin-right: 1%; margin-bottom: 0.5em;\"><\/a>\n\n<a href=\"https:\/\/cde.nus.edu.sg\/mse\/staff\/stephen-john-pennycook\/\"><img decoding=\"async\" src=\"\/mse\/wp-content\/uploads\/sites\/4\/2020\/06\/Adv-Electron-Microscopy-6.png\" style=\"float: left; width: 23%; margin-right: 1%; margin-bottom: 0.5em;\"><\/a>\n<\/div><\/div>\n\n\n","protected":false},"excerpt":{"rendered":"<p>Seeing atoms, performing optics &amp; chemistry at the nanoscale The MSE Department at NUS is specialized in Scanning Transmission Electron Microscopy (STEM): an electron beam with a diameter smaller than an atom is scanned over a material, to show its structure at atomic resolution. Atomic-resolution elemental mapping can also be performed with our STEM, using [&hellip;]<\/p>\n","protected":false},"author":67,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_acf_changed":false,"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""}},"footnotes":""},"class_list":["post-2631","page","type-page","status-publish","hentry"],"acf":[],"_links":{"self":[{"href":"https:\/\/cde.nus.edu.sg\/mse\/wp-json\/wp\/v2\/pages\/2631","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/cde.nus.edu.sg\/mse\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/cde.nus.edu.sg\/mse\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/cde.nus.edu.sg\/mse\/wp-json\/wp\/v2\/users\/67"}],"replies":[{"embeddable":true,"href":"https:\/\/cde.nus.edu.sg\/mse\/wp-json\/wp\/v2\/comments?post=2631"}],"version-history":[{"count":51,"href":"https:\/\/cde.nus.edu.sg\/mse\/wp-json\/wp\/v2\/pages\/2631\/revisions"}],"predecessor-version":[{"id":2711,"href":"https:\/\/cde.nus.edu.sg\/mse\/wp-json\/wp\/v2\/pages\/2631\/revisions\/2711"}],"wp:attachment":[{"href":"https:\/\/cde.nus.edu.sg\/mse\/wp-json\/wp\/v2\/media?parent=2631"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}