{"603291":{"#nid":"603291","#data":{"type":"event","title":"Correlating atomic-scale structure with electronic properties of 2D materials","body":[{"value":"\u003Ch3\u003ESchool of Physics Hard Condensed Matter \u0026amp; AMO Seminar: Prof. Shawna Hollen, University of New Hampshire\u0026nbsp;\u003C\/h3\u003E\r\n\r\n\u003Cp\u003ETwo-dimensional crystals have received a lot of attention for their promise of a wide range of applications, and as a platform to study fundamentally new physics. Towards new applications, black phosphorus is a particularly exciting material because of its direct and tunable bandgap from 0.4-1.5 eV and high mobility carriers. However, samples degrade rapidly in air and are mysteriously p-doped.\u003C\/p\u003E\r\n\r\n\u003Cp\u003EIn this talk, I will present our recent work that shows atomic vacancies are prevalent and charged in commercial black phosphorus crystals\u0026mdash;the likely root of p-doping. Now, vacancies appear to be more important to control than impurities. On the fundamental side, 2D crystals present a unique opportunity to correlate changes in\u0026nbsp;atomic-scale structure\u0026nbsp;with device-scale transport using scanned probe microscopy because they are entirely surface. I will also present our early work correlating local disorder with transport in 2D material devices.\u003C\/p\u003E\r\n","summary":null,"format":"limited_html"}],"field_subtitle":"","field_summary":"","field_summary_sentence":[{"value":"Correlating atomic-scale structure with electronic properties of 2D materials"}],"uid":"30957","created_gmt":"2018-03-05 20:13:30","changed_gmt":"2018-03-05 20:15:33","author":"Shaun Ashley","boilerplate_text":"","field_publication":"","field_article_url":"","field_event_time":{"event_time_start":"2018-03-15T16:00:00-04:00","event_time_end":"2018-03-15T16:00:00-04:00","event_time_end_last":"2018-03-15T16:00:00-04:00","gmt_time_start":"2018-03-15 20:00:00","gmt_time_end":"2018-03-15 20:00:00","gmt_time_end_last":"2018-03-15 20:00:00","rrule":null,"timezone":"America\/New_York"},"extras":[],"hg_media":{"603293":{"id":"603293","type":"image","title":"Prof. Shawna Hollen","body":null,"created":"1520280873","gmt_created":"2018-03-05 20:14:33","changed":"1520280873","gmt_changed":"2018-03-05 20:14:33","alt":"","file":{"fid":"229936","name":"Shawna Hollen 3.15.2018.jpg","image_path":"\/sites\/default\/files\/images\/Shawna%20Hollen%203.15.2018.jpg","image_full_path":"http:\/\/hg.gatech.edu\/\/sites\/default\/files\/images\/Shawna%20Hollen%203.15.2018.jpg","mime":"image\/jpeg","size":21309,"path_740":"http:\/\/hg.gatech.edu\/sites\/default\/files\/styles\/740xx_scale\/public\/images\/Shawna%20Hollen%203.15.2018.jpg?itok=PNR7hC_5"}}},"media_ids":["603293"],"groups":[],"categories":[],"keywords":[{"id":"960","name":"physics"}],"core_research_areas":[],"news_room_topics":[],"event_categories":[{"id":"1795","name":"Seminar\/Lecture\/Colloquium"}],"invited_audience":[{"id":"78761","name":"Faculty\/Staff"},{"id":"174045","name":"Graduate students"}],"affiliations":[],"classification":[],"areas_of_expertise":[],"news_and_recent_appearances":[],"phone":[],"contact":[{"value":"\u003Cp\u003Eshaun.ashley@physics.gatech.edu\u003C\/p\u003E\r\n","format":"limited_html"}],"email":[],"slides":[],"orientation":[],"userdata":""}}}