{"624338":{"#nid":"624338","#data":{"type":"event","title":"Master\u0027s Thesis Defense by Matthew S. Rager","body":[{"value":"\u003Cp\u003EMASTER\u0026rsquo;S THESIS DEFENSE\u003Cbr \/\u003E\r\n\u003Cbr \/\u003E\r\nby\u003C\/p\u003E\r\n\r\n\u003Cp\u003E\u003Cstrong\u003EMatthew S. Rager\u003C\/strong\u003E\u003C\/p\u003E\r\n\r\n\u003Cp\u003E\u003Cstrong\u003ETitle: Moving Towards Stable Metal Halide Perovskite Solar Cells for use in Low-Earth Orbit\u003C\/strong\u003E\u003C\/p\u003E\r\n\r\n\u003Cp\u003EThursday, August 15, 2019\u003C\/p\u003E\r\n\r\n\u003Cp\u003E3:00 PM\u003Cbr \/\u003E\r\nin MoSE 1226\u003C\/p\u003E\r\n\r\n\u003Cp\u003ECommittee Members:\u003C\/p\u003E\r\n\r\n\u003Cp\u003EProf. Zhiqun Lin,\u0026nbsp;Advisor, MSE\u003C\/p\u003E\r\n\r\n\u003Cp\u003EProf. Zhitao Kang, Co-advisor, GTRI\u003C\/p\u003E\r\n\r\n\u003Cp\u003EProf. Jud Ready, Co-advisor, MSE\/GTRI\u003C\/p\u003E\r\n\r\n\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E\r\n\r\n\u003Cp\u003E\u003Cstrong\u003EAbstract:\u003C\/strong\u003E\u003C\/p\u003E\r\n\r\n\u003Cp\u003EPerovskite solar cells have recently emerged as a new leader in the third-generation of photovoltaics. Additionally, this new technology has the potential for application in several areas, including aerospace. The light-absorbing material in perovskite solar cells is an organometal halide compound with the perovskite structure (ABX\u003Csub\u003E3\u003C\/sub\u003E) where various atoms can be combined and interchanged to tune the optoelectronic properties. Typically, the A site is filled by organic, small- molecule cations (e.g. methylammonium and formamdinium) and\/or inorganic atoms (e.g. Cs or Rb), the B site is filled by metal atoms (e.g. Pb\u003Csup\u003E2+\u003C\/sup\u003E or Sn\u003Csup\u003E2+\u003C\/sup\u003E), and halide anions (e.g. I\u003Csup\u003E-\u003C\/sup\u003E and Br\u003Csup\u003E+\u003C\/sup\u003E) fill the X site. In this study, I fabricated organic-inorganic (MAPbI\u003Csub\u003E3\u003C\/sub\u003E and Cs\u003Csub\u003E0.05\u003C\/sub\u003E(MA\u003Csub\u003E0.17\u003C\/sub\u003EFA\u003Csub\u003E0.83\u003C\/sub\u003E)Pb(I\u003Csub\u003E0.83\u003C\/sub\u003EBr\u003Csub\u003E0.17\u003C\/sub\u003E)\u003Csub\u003E3\u003C\/sub\u003E and all-inorganic (CsPbBr\u003Csub\u003E3\u003C\/sub\u003E) perovskite solar cells with to improve the efficiency and stability with the goal of studying operation in low-Earth orbit environment. The harsh environment of space requires materials with good thermal stability due to large variations in temperature. The organic-inorganic solar cells are more efficient than all-inorganic, but the organic cation places limitations on the thermal stability of the material. Thus, all-inorganic perovskite solar cells (e.g. CsPbBr\u003Csub\u003E3\u003C\/sub\u003E) were fabricated and studied as the best candidates to survive the extreme conditions in low-Earth orbit.\u003C\/p\u003E\r\n","summary":null,"format":"limited_html"}],"field_subtitle":"","field_summary":"","field_summary_sentence":[{"value":"Moving Towards Stable Metal Halide Perovskite Solar Cells for use in Low-Earth Orbit"}],"uid":"27690","created_gmt":"2019-08-12 00:24:59","changed_gmt":"2019-08-12 15:39:02","author":"Jacquelyn Strickland","boilerplate_text":"","field_publication":"","field_article_url":"","field_event_time":{"event_time_start":"2019-08-15T16:00:00-04:00","event_time_end":"2019-08-15T18:00:00-04:00","event_time_end_last":"2019-08-15T18:00:00-04:00","gmt_time_start":"2019-08-15 20:00:00","gmt_time_end":"2019-08-15 22:00:00","gmt_time_end_last":"2019-08-15 22:00:00","rrule":null,"timezone":"America\/New_York"},"extras":[],"groups":[{"id":"221981","name":"Graduate Studies"}],"categories":[],"keywords":[{"id":"111531","name":"ms defense"}],"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":""}}}