{"678043":{"#nid":"678043","#data":{"type":"event","title":"PhD Proposal by Richard Kim","body":[{"value":"\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E\u003Cp\u003E\u003Cstrong\u003ERichard Kim\u003C\/strong\u003E\u003C\/p\u003E\u003Cp\u003EAdvisor: William J. Ready\u003C\/p\u003E\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E\u003Cp\u003E\u003Cem\u003Ewill propose a doctoral thesis entitled\u003C\/em\u003E,\u003C\/p\u003E\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E\u003Cp\u003E\u003Cstrong\u003EFluorescent and Transparent Materials and Thin Film Coatings for Temperature Sensing Applications\u003C\/strong\u003E\u003C\/p\u003E\u003Cp\u003E\u003Cbr\u003E\u003Cem\u003EOn\u003C\/em\u003E\u003C\/p\u003E\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E\u003Cp\u003EWednesday, November 13th at 3:00 p.m.\u003C\/p\u003E\u003Cp\u003ELove Building Room 229\u003C\/p\u003E\u003Cp\u003E771 Ferst Dr NW, Atlanta, GA 30332\u003C\/p\u003E\u003Cp\u003Eand\/or\u003C\/p\u003E\u003Cp\u003E\u0026nbsp;Virtually via MS Teams or Zoom\u003C\/p\u003E\u003Cp\u003ELink\u003C\/p\u003E\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E\u003Cp\u003E\u003Cstrong\u003ECommittee\u003C\/strong\u003E\u003Cbr\u003E\u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; Dr. William J. Ready \u2013 School of Materials Science and Engineering (advisor)\u003Cbr\u003E\u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; Dr. Ellen Mazumdar \u2013 School of Mechanical Engineering\u003Cbr\u003E\u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; Dr. Zhitao Kang\u0026nbsp; \u2013 School of Materials Science and Engineering\u003C\/p\u003E\u003Cp\u003E\u003Cstrong\u003EAbstract\u003C\/strong\u003E\u003C\/p\u003E\u003Cp\u003EIn this work, we developed a high-temperature photoluminescent coating based on europium-doped yttrium oxide for use on transparent windows in engines and combustors. Europium oxide and yttrium oxide were sequentially deposited onto silicon and sapphire substrates using ion-assisted deposition (IAD), followed by high-temperature annealing to achieve phase formation. The resulting thin films exhibited strong photoluminescence under UV excitation, with the performance of the coatings assessed under high temperature. Advanced characterization techniques, including field-emission scanning electron microscopy (FE-SEM), x-ray photoelectron spectroscopy (XPS), and grazing incidence X-ray diffraction (GIXRD), were employed to analyze the surface morphology and phase composition of the films. Furthermore, luminescent properties such as photoluminescence (PL) emission and lifetime decay of these thin films are studied to observe the temperature dependence. By studying the temperature dependent behavior of luminescent properties, we will be able use the europium-doped yttrium oxide thin films as temperature sensors. This research highlights the potential of europium-doped yttrium oxide coatings for enhancing the performance and durability of transparent windows in high-temperature applications.\u003C\/p\u003E\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E","summary":"","format":"limited_html"}],"field_subtitle":"","field_summary":[{"value":"\u003Cp\u003E\u003Cstrong\u003EFluorescent and Transparent Materials and Thin Film Coatings for Temperature Sensing Applications\u003C\/strong\u003E\u003C\/p\u003E","format":"limited_html"}],"field_summary_sentence":[{"value":"Fluorescent and Transparent Materials and Thin Film Coatings for Temperature Sensing Applications"}],"uid":"27707","created_gmt":"2024-10-31 16:09:11","changed_gmt":"2024-10-31 16:10:27","author":"Tatianna Richardson","boilerplate_text":"","field_publication":"","field_article_url":"","field_event_time":{"event_time_start":"2024-11-13T15:00:19-05:00","event_time_end":"2024-11-13T17:00:00-05:00","event_time_end_last":"2024-11-13T17:00:00-05:00","gmt_time_start":"2024-11-13 20:00:19","gmt_time_end":"2024-11-13 22:00:00","gmt_time_end_last":"2024-11-13 22:00:00","rrule":null,"timezone":"America\/New_York"},"location":"Love Building Room 229","extras":[],"groups":[{"id":"221981","name":"Graduate Studies"}],"categories":[],"keywords":[{"id":"102851","name":"Phd proposal"}],"core_research_areas":[],"news_room_topics":[],"event_categories":[{"id":"1788","name":"Other\/Miscellaneous"}],"invited_audience":[{"id":"78771","name":"Public"}],"affiliations":[],"classification":[],"areas_of_expertise":[],"news_and_recent_appearances":[],"phone":[],"contact":[],"email":[],"slides":[],"orientation":[],"userdata":""}}}