{"90171":{"#nid":"90171","#data":{"type":"event","title":"(10-0928) Prof. John Reynolds, University of Florida","body":[{"value":"\u003Cp\u003EProf. John Reynolds, University of Florida\n\u003C\/p\u003E\n\u003Cp\u003E\u00ce\u00a0-Conjugated Polymers: Pushing the Limits Using Chemistry\n\u003C\/p\u003E\n\u003Cp\u003ESpecial Seminar\n\u003C\/p\u003E\n\u003Cp\u003EConjugated polymers provide a unique encompassing set of structurally tunable optical, electronic transport, and redox properties that allows their present and potential use in a host of applications which span nearly metallic materials, field effect transistors, light emitting diodes, solar cells and photodetectors, chem\/bio-sensors, electrochromism, along with batteries and supercapacitors.  Each of these properties can be controlled by repeat unit, macromolecular, and solid-state structure which are all dependent on the chemical identity of each system.  In this presentation, we will explore how chemistry enables the creation of new polymers where a specific property is pushed towards its limit.  Dioxypyrrole-based polymers provide the most electron rich, and most easily oxidized, conjugated polymer family as desired for stable conductivity and long lived redox switching.\u003Csup\u003E1\u003C\/sup\u003E    The flexible synthetic chemistry of dioxythiophene-based polymers has allowed us to complete the color palette of vibrantly colored to transmissive switching electrochromes of any color, including black.\u003Csup\u003E2,3\u003C\/sup\u003E  Two band absorption induced by the incorporation of a donor-acceptor-donor triad in the polymer chain induces long wavelength light collection well into the near infrared for photovoltaic devices,\u003Csup\u003E4\u003C\/sup\u003E and even into the mid infrared as desired for photodetectors.\u003Csup\u003E5\u003C\/sup\u003E Accessing highly solution processble conjugated polymers allows us to spray- and print-process for a response or interaction over large-areas and on flexible substrates.  These examples serve to demonstrate the approach the chemist uses in conjugated polymer research, and provides insight for making great strides in the future.\n\u003C\/p\u003E\n\u003Cp\u003E\u003CSUP\u003E1\u003C\/sup\u003EWalczak, R. M.; Reynolds, J. R.  Adv. Mater. 2006, 18, 1121-1131.  \u00e2\u0080\u009cPoly(3,4-alkylenedioxypyrroles): The PXDOPs as Versatile yet Underutilized Electro-active and Conducting Polymers\u00e2\u0080\u009d\u003Cbr \/\u003E\n\u003CSUP\u003E2\u003C\/sup\u003EBeaujuge, P.M.; Reynolds, J.R.  Chem. Reviews, Special Edition \u00e2\u0080\u0022 Organic Electronics  2010, 110, 268-320.  \u00e2\u0080\u009cColor Control in \u00ce\u00a0-Conjugated Organic Polymers for Use in Electrochromic Devices\u00e2\u0080\u009d\u003Cbr \/\u003E\n\u003CSUP\u003E3\u003C\/sup\u003EBeaujuge, P.; Ellinger, S.; Reynolds, J.R. Nature Materials, 2008, 7, 795-799.  \u00e2\u0080\u009cThe Donor-Acceptor Approach Allows a Black to Transmissive Switching Polymer Electrochrome\u00e2\u0080\u009d\u003Cbr \/\u003E\n\u003CSUP\u003E4\u003C\/sup\u003EBeaujuge, P.M.; Amb, C.M.; Reynolds, J.R.  Acc. Chem. Res., ASAP August 20, 2010 DOI: 10.1021\/ar100043u  \u00e2\u0080\u009cSpectral Engineering in \u00ce\u00a0-Conjugated Polymers with Intramolecular Donor-Acceptor Interactions\u00e2\u0080\u009d\u003Cbr \/\u003E\n\u003CSUP\u003E5\u003C\/sup\u003ESteckler, T.T., Zhang, X., Hwang, J., Honeyager, R., Ohira, S., Zhang, X-H., Grant, A., Ellinger, S., Odom, S.A., Seat, D., Tanner, D.B., Rinzler, A.G., Barlow, S., Bredas, J-L., Kippelen, B., Marder, S.R., Reynolds, J.R. J. Am. Chem. Soc. 2009,131, 2824-2826.  \u00e2\u0080\u009cA Spray Processable, Low Bandgap, and Ambipolar Donor-Acceptor Conjugated Polymer\u00e2\u0080\u009d\n\u003C\/p\u003E\n\u003Cp\u003EFor more information contact \u003Ca href=\u0022mailto:seth.marder@chemistry.gatech.edu\u0022\u003EProf. Seth Marder\u003C\/a\u003E (404-385-5-6048).\u003C\/p\u003E","summary":null,"format":"limited_html"}],"field_subtitle":"","field_summary":[{"value":"Prof. John Reynolds, University of Florida\n\n\u00ce\u00a0-Conjugated Polymers: Pushing the Limits Using Chemistry\n\nSpecial Seminar","format":"limited_html"}],"field_summary_sentence":[{"value":"Prof. John Reynolds, University of Florida"}],"uid":"27275","created_gmt":"2010-09-15 00:00:00","changed_gmt":"2016-10-08 01:47:05","author":"Shirley Tomes","boilerplate_text":"","field_publication":"","field_article_url":"","field_event_time":{"event_time_start":"2010-09-28T17:00:00-04:00","event_time_end":"2010-09-28T18:00:00-04:00","event_time_end_last":"2010-09-28T18:00:00-04:00","gmt_time_start":"2010-09-28 21:00:00","gmt_time_end":"2010-09-28 22:00:00","gmt_time_end_last":"2010-09-28 22:00:00","rrule":null,"timezone":"America\/New_York"},"extras":[],"related_links":[{"url":"http:\/\/www.chem.ufl.edu\/research\/facultypage.shtml?photo=reynolds","title":"Prof. John Reynolds, University of Florida"}],"groups":[{"id":"85951","name":"School of Chemistry and Biochemistry"}],"categories":[],"keywords":[{"id":"1809","name":"physical chemistry"}],"core_research_areas":[],"news_room_topics":[],"event_categories":[{"id":"1795","name":"Seminar\/Lecture\/Colloquium"}],"invited_audience":[],"affiliations":[],"classification":[],"areas_of_expertise":[],"news_and_recent_appearances":[],"phone":[],"contact":[{"value":"\u003Cstrong\u003EShirley Tomes\u003C\/strong\u003E\u003Cbr \/\u003EChemistry \u0026amp; Biochemistry\u003Cbr \/\u003E\u003Ca href=\u0022http:\/\/www.gatech.edu\/contact\/index.html?id=st81\u0022\u003EContact Shirley Tomes\u003C\/a\u003E\u003Cbr \/\u003E\u003Cstrong\u003E404-894-0591\u003C\/strong\u003E","format":"limited_html"}],"email":[],"slides":[],"orientation":[],"userdata":""}}}