{"592239":{"#nid":"592239","#data":{"type":"event","title":"Semiconductor Nanowires for Optoelectronic and Energy Applications","body":[{"value":"\u003Cp\u003E\u003Cstrong\u003EAbstract:\u003C\/strong\u003E\u003Cbr \/\u003E\r\nThe excitement of nanowire research is due to the unique electronic and optical properties of these nanostructures. Both axial and radial heterostructure nanowires have been proposed as nano-building blocks for next-generation devices, which are expected to revolutionise our technological world.\u003C\/p\u003E\r\n\r\n\u003Cp\u003EThe unique properties stem from their large surface area-to-volume ratio, very high aspect ratio, and carrier and photon confinement in two dimensions.\u003C\/p\u003E\r\n\r\n\u003Cp\u003EThese nanowires are usually grown by the so-called vapor-liquid-solid mechanism, which relies on a metal nanoparticle to catalyze and seed the growth. An alternative technique to grow the nanowires is by selective area growth technique, where a dielectric mask is first patterned on the substrate prior to growth.\u003C\/p\u003E\r\n\r\n\u003Cp\u003EIn this talk, Hoe Tan\u0026nbsp;will present an overview of compound semiconductor nanowire research activities at The Australian National University. The optical and structural properties of binary and ternary III-V nanowires including GaAs, InGaAs, InP, and GaAsSb nanowires grown by metal-organic vapor-phase epitaxy will be presented. Various issues such as tapering of the nanowires, compositional non-uniformity along nanowires, crystal structure, carrier lifetime, and polarization effect will be discussed.\u003C\/p\u003E\r\n\r\n\u003Cp\u003ETan will also present his group\u0026#39;s results of III-V nanowires grown on Si substrates, which are of great interests for the integration of nano-optoelectronic devices on Si platforms. Their results of enhancing the quantum efficiency of nanowires by using plasmonics are promising to improve the performance of nanowire devices.\u003C\/p\u003E\r\n\r\n\u003Cp\u003EFinally, the results from nanowire lasers, photodetectors, solar cells, and photoelectrodes for water splitting will be presented.\u003C\/p\u003E\r\n\r\n\u003Cp\u003E\u003Cstrong\u003EAbout the Speaker:\u003C\/strong\u003E\u003Cbr \/\u003E\r\nHoe Tan heads\u0026nbsp;the Department of Electronic Materials Engineering at the Research School of Physics and Engineering, The Australian National University.\u003C\/p\u003E\r\n\r\n\u003Cp\u003EHe received his B.E. (Hons) in Electrical Engineering from the University of Melbourne in 1992, after which he worked with Osram in Malaysia as a quality assurance engineer. In 1997, he was awarded the PhD degree from The Australian National University for his dissertation on \u0026quot;Ion beam effects in GaAs-AlGaAs materials and devices.\u0026quot;\u0026nbsp;\u003C\/p\u003E\r\n\r\n\u003Cp\u003EHe has been the past recipient of the Australian Research Council Postdoctoral, QEII, and Future Fellowships. He has published\/co-published over 350 journal papers, including four book chapters. He is also a co-inventor in four\u0026nbsp;US patents related to laser diodes and infrared photodetectors.\u003C\/p\u003E\r\n\r\n\u003Cp\u003EHis research interests include epitaxial growth of low-dimensional compound semiconductors, nanostructured optoelectronic devices and ion-implantation processing of compound semiconductors for optoelectronic device applications.\u003C\/p\u003E\r\n\r\n\u003Cp\u003ETan is a Senior Member of the IEEE.\u003C\/p\u003E\r\n","summary":null,"format":"limited_html"}],"field_subtitle":"","field_summary":[{"value":"\u003Cp\u003ESemiconductor nanowires for optoelectronic and energy applications.\u003C\/p\u003E\r\n","format":"limited_html"}],"field_summary_sentence":[{"value":"A seminar by Hoe Tan, Australian National University, for the Joint OPA-IPS Invited Speaker Series at Georgia Tech"}],"uid":"30678","created_gmt":"2017-05-30 20:22:14","changed_gmt":"2017-05-30 22:16:14","author":"A. Maureen Rouhi","boilerplate_text":"","field_publication":"","field_article_url":"","field_event_time":{"event_time_start":"2017-06-07T13:00:00-04:00","event_time_end":"2017-06-07T14:30:00-04:00","event_time_end_last":"2017-06-07T14:30:00-04:00","gmt_time_start":"2017-06-07 17:00:00","gmt_time_end":"2017-06-07 18:30:00","gmt_time_end_last":"2017-06-07 18:30:00","rrule":null,"timezone":"America\/New_York"},"extras":["free_food"],"hg_media":{"592241":{"id":"592241","type":"image","title":"Hoe Tan, Australian National University","body":null,"created":"1496182266","gmt_created":"2017-05-30 22:11:06","changed":"1496182266","gmt_changed":"2017-05-30 22:11:06","alt":"","file":{"fid":"225698","name":"Hoe Tan.jpg","image_path":"\/sites\/default\/files\/images\/Hoe%20Tan.jpg","image_full_path":"http:\/\/www.tlwarc.hg.gatech.edu\/\/sites\/default\/files\/images\/Hoe%20Tan.jpg","mime":"image\/jpeg","size":130749,"path_740":"http:\/\/www.tlwarc.hg.gatech.edu\/sites\/default\/files\/styles\/740xx_scale\/public\/images\/Hoe%20Tan.jpg?itok=WvunbVJ6"}}},"media_ids":["592241"],"groups":[{"id":"1278","name":"College of Sciences"},{"id":"85951","name":"School of Chemistry and Biochemistry"},{"id":"126011","name":"School of Physics"},{"id":"1255","name":"School of Electrical and Computer Engineering"}],"categories":[],"keywords":[],"core_research_areas":[],"news_room_topics":[],"event_categories":[{"id":"1795","name":"Seminar\/Lecture\/Colloquium"}],"invited_audience":[{"id":"78761","name":"Faculty\/Staff"},{"id":"78771","name":"Public"},{"id":"174045","name":"Graduate students"},{"id":"78751","name":"Undergraduate students"}],"affiliations":[],"classification":[],"areas_of_expertise":[],"news_and_recent_appearances":[],"phone":[],"contact":[{"value":"\u003Cp\u003ETianren Fan\u0026nbsp;\u003Cbr \/\u003E\r\n\u003Ca href=\u0022mailto:tianren.fan@gatech.edu\u0022\u003Etianren.fan@gatech.edu\u003C\/a\u003E\u003C\/p\u003E\r\n\r\n\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E\r\n","format":"limited_html"}],"email":[],"slides":[],"orientation":[],"userdata":""}}}