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</o:shapelayout></xml><![endif]--></head><body lang=PT link="#0563C1" vlink="#954F72"><div class=WordSection1><p class=MsoNormal><span style='mso-fareast-language:PT'><img width=230 height=132 id="Imagem_x0020_2" src="cid:image001.png@01D8C9E1.A3AEDC00"></span><b><span style='font-size:12.0pt;font-family:"Times New Roman",serif'><o:p></o:p></span></b></p><p class=MsoNormal align=center style='text-align:center'><b><span style='font-size:12.0pt;font-family:"Times New Roman",serif'>Convite para palestra sobre transístores orgânicos<o:p></o:p></span></b></p><p class=MsoNormal align=center style='text-align:center'><b><span style='font-size:12.0pt;font-family:"Times New Roman",serif'> 2º Feira, dia 19 de setembro, pelas 12h<o:p></o:p></span></b></p><p class=MsoNormal align=center style='text-align:center'><b><span style='font-size:12.0pt;font-family:"Times New Roman",serif'>Sala de Seminários <o:p></o:p></span></b></p><p class=MsoNormal align=center style='text-align:center'><b><span style='font-size:12.0pt;font-family:"Times New Roman",serif'>(junto à antiga biblioteca do DEEC)<o:p></o:p></span></b></p><p class=MsoNormal align=center style='text-align:center'><b><span style='font-size:12.0pt;font-family:"Times New Roman",serif'><o:p> </o:p></span></b></p><p class=MsoNormal style='text-align:justify'><span style='font-size:12.0pt;font-family:"Times New Roman",serif'>Na 2º feira, dia 19 de setembro, o Prof. Fabio Biscarini visitará o DEEC e o Instituto de Telecomunicações (IT) e dará um breve seminário sobre transístores orgânicos na sala de seminários junto à antiga biblioteca do DEEC às 12h.<o:p></o:p></span></p><p style='margin:0cm;margin-bottom:.0001pt;text-align:justify;background:white'>O Prof. Biscarini é Professor na Universidade de Modena and Reggio Emilia (UNIMORE), em Itália, e coordenador do grupo de <span class=x-el>Organic Neuroelectronics do Center for Translational Neurophysiology-Instituto Italiano di Tecnologia in Ferrara.</span><span class=x-el><span lang=EN-GB><o:p></o:p></span></span></p><p style='margin:0cm;margin-bottom:.0001pt;text-align:justify;background:white'><span class=x-el>O Prof. Bicarini tem um extenso trabalho em dispositivos eletrónicos implantáveis para interfaces homem-máquina, dispositivos neuromórficos e biossensores. É inventor de 19 patentes e fundou 3 start-ups. Todos serão bem-vindos.</span><span lang=EN-GB><o:p></o:p></span></p><p class=MsoNormal align=center style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;text-align:center;background:white'><span style='mso-fareast-language:PT'><img width=267 height=267 id="Imagem_x0020_1" src="cid:image002.jpg@01D8C9E1.A3AEDC00"></span><b><span lang=EN-US style='font-size:16.0pt;font-family:"Segoe UI",sans-serif;color:black;mso-fareast-language:EN-GB'><o:p></o:p></span></b></p><p class=MsoNormal align=center style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;text-align:center;background:white'><span class=x-el><b><span style='font-size:12.0pt;font-family:"Times New Roman",serif'>Prof. Fabio Biscarini<o:p></o:p></span></b></span></p><p class=MsoNormal align=center style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;text-align:center;background:white'><span class=x-el><span style='font-size:12.0pt;font-family:"Times New Roman",serif;mso-fareast-language:EN-GB'>Oscillating Wetting/Dewetting Transitions in Nanoscale Thin Film Growth Enhance Charge Transport in Organic Thin Film Transistors<o:p></o:p></span></span></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;text-align:justify;background:white'><span class=x-el><span style='font-size:12.0pt;font-family:"Times New Roman",serif;mso-fareast-language:EN-GB'>We discovered a growth mode of pentacene thin films deposited by high vacuum sublimation where the morphology vs thickness h “rings” back and forth between rough 3D films with pyramid islands and smooth 2D films with ziqqurat islands. The roughness s vs h exhibits seamless coherent oscillations whose amplitude and wavelength increase as integer multiples of 1.5 ML thickness. The quantized oscillations are reconducted to dynamic wetting/dewetting transitions involving the upper layers of pentacene film. Importantly, the transconductance of organic field effect transistors, either in solid state or electrolyte-gated, exhibits anti-phase oscillations with one-decade swing. Charge mobilities in the wetting regime exceed ten cm2/Vs, viz. the highest values reported for thin film pentacene transistors and comparable to the mobility of pentacene single crystals. This growth mode overcomes the limitations of charge transport imposed by the roughening transition, a universal feature of high vacuum growth to date.<o:p></o:p></span></span></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><span style='font-size:9.0pt;mso-fareast-language:PT'>Cumprimentos,<o:p></o:p></span></p><p class=MsoNormal><span style='mso-fareast-language:PT'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:9.0pt;mso-fareast-language:PT'>Lara Costa<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:9.0pt;mso-fareast-language:PT'>Gestora de Ciência<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:9.0pt;mso-fareast-language:PT'>Instituto de Sistemas e Robótica<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:9.0pt;mso-fareast-language:PT'>Departamento de Engenharia Eletrotécnica e de Computadores<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:9.0pt;mso-fareast-language:PT'>Pólo II, Universidade de Coimbra<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:9.0pt;mso-fareast-language:PT'>3030-790 Coimbra<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:9.0pt;mso-fareast-language:PT'>Tel: 239 796 217 (Ext: 421113)<o:p></o:p></span></p><p class=MsoNormal><o:p> </o:p></p></div></body></html>