{"686029":{"#nid":"686029","#data":{"type":"event","title":"Ph.D. Proposal Oral Exam - Hang Cui","body":[{"value":"\u003Cp\u003E\u003Cstrong\u003ETitle:\u0026nbsp; \u003C\/strong\u003E\u003Cem\u003ETheory, Simulation and Design of Bi-directional Piezo-acoustic Wurtzite III-Nitride Transistors\u003C\/em\u003E\u003C\/p\u003E\u003Cp\u003E\u003Cstrong\u003ECommittee:\u003C\/strong\u003E\u003C\/p\u003E\u003Cp\u003EDr. Yoder, Advisor\u003C\/p\u003E\u003Cp\u003EDr. Graber, Chair\u003C\/p\u003E\u003Cp\u003EDr. Doolittle\u003C\/p\u003E","summary":"","format":"limited_html"}],"field_subtitle":"","field_summary":[{"value":"\u003Cp\u003EThe objective of the proposed research is to establish the theoretical foundation and computational framework for piezoelectric-controlled multi-channel conductivity modulation in scandium-containing wurtzite III-nitride heterostructures. This work enables the design of Piezo-Acoustic Transistors (PATs), which modulate current via stress-induced polarization contrast rather than electrically driven gates, offering intrinsic immunity to electromagnetic interference and reduced circuit complexity. A combined approach of density functional theory and TCAD simulations will predict material properties, carrier distributions, and transport under strain-modulated fields, targeting scalable devices capable of 10\u2013100 kV operation. Preliminary results demonstrate optimal heterostructure configurations for epitaxial growth, enhanced polarization modulation, and stress-driven channel formation with high on\/off ratios. Future efforts will expand modeling of device scalability, transient switching performance, and piezo-acoustic wave activation. This research aims to advance EMI-immune power switching technology for next-generation grid infrastructure.\u003C\/p\u003E","format":"limited_html"}],"field_summary_sentence":[{"value":"Theory, Simulation and Design of Bi-directional Piezo-acoustic Wurtzite III-Nitride Transistors"}],"uid":"28475","created_gmt":"2025-10-27 20:30:18","changed_gmt":"2025-11-10 13:03:35","author":"Daniela Staiculescu","boilerplate_text":"","field_publication":"","field_article_url":"","field_event_time":{"event_time_start":"2025-11-21T13:00:00-05:00","event_time_end":"2025-11-21T15:00:00-05:00","event_time_end_last":"2025-11-21T15:00:00-05:00","gmt_time_start":"2025-11-21 18:00:00","gmt_time_end":"2025-11-21 20:00:00","gmt_time_end_last":"2025-11-21 20:00:00","rrule":null,"timezone":"America\/New_York"},"location":"Room W218, Van Leer","extras":[],"groups":[{"id":"434371","name":"ECE Ph.D. Proposal Oral Exams"}],"categories":[],"keywords":[{"id":"102851","name":"Phd proposal"},{"id":"1808","name":"graduate students"}],"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":""}}}