報告摘要：
Conducting polymers were discovered in 1970s. Recent progress in conducting polymers demonstrated their important applications, such as the next-generation transparent electrode and thermoelectric materials. Optoelectronic devices require at least one electrode to be transparent. Indium tin oxide (ITO) is traditionally used as the transparent electrode of optoelectronic devices. But ITO has problems of scarce indium on earth and poor mechanical flexibility. Conducting polymers, carbon nanotubes, graphene and metal wire grids have been proposed to be the transparent electrode materials. Among them, poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) is promising to be the next-generation transparent electrode material due to its solution processability, low cost and high transparency in visible range. However, the as-prepared PEDOT:PSS film obtained from PEDOT:PSS aqueous solution usually has conductivity below 1 S cm-1, remarkably lower than ITO. Here, I will present several novel methods to significantly enhance the conductivity of PEDOT:PSS. The conductivity can be enhanced to be more than 3000 S cm-1, which is higher than that of ITO on plastic and comparable to ITO on glass. I will also present some of our recent works in developing polymers with high thermoelectric properties. Thermoelectric polymers can be used for heat harvesting and cooling.
報告人簡介：
歐陽建勇 教授，于清華大學化學系、中國科學院化學所和日本分子科學研究所獲得學士、碩士和博士學位。然后在日本北陸先端科學技術大學院大學作助理教授和美國加州大學洛杉磯分校作博士后。2006年加入新加坡國立大學材料與科學工程學院，研究方向為有機電子、存儲器件、納米材料等方面的研究，在Nature Materials、Nature Nanotechnology、Nature Communications、Advanced Materials、Nano Letters等學術刊物上發(fā)表論文170余篇。多篇研究成果被MIT Technology Reviews、world journal、azonano.com、Nanotechweb、Journal of Materials Chemistry等報道或評為年度亮點文章。
他的主要研究成果包括發(fā)明了世界上第一個高分子/納米顆粒存儲器和多次刷新可加工導電高分子電導和熱電性能的世界記錄。獲得IUPAC的Distinguished Award for Novel Materials and Their Synthesis, NUS Young Investigator Award, 北京科學技術獎一等獎, 日中科學技術交流協(xié)會天田科學技術獎勵獎 和中國科學院院長獎學金特別獎。
