报告题目：Next-Generation Transparent Electrode Materials
报告人：欧阳建勇
地点：907#楼1445室
时间：2014年10月15日（星期二） 下午15:30
摘要
Optoelectronic devices require at least one electrode to be transparent. Indiun 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 electode 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.
报告人简介
欧阳建勇分别在日本分子科学研究所, 中国科学院化学所和清华大学化学系获得博士,硕士和学士学位. 在日本北陆先端科学技术大学院大学当了几个月助手(相当于美国的Assistant Professor)后, 他去美国加州大学洛杉矶分校作博士后.在2006年加入新加坡国立大学.
