报告人：臧冷 教授

美国犹他大学USTAR特聘教授、化学系(兼)及材料科学与工程系教授(终身)

犹他纳米研究院界面科学中心主任

Vaporsens Inc.，创建人，CSO

报告题目：1D Optoelectronics of Organic Nanofibers and Inspired Sensor Applications

报告时间：11月9日（周一）上午10：00

报告地点：ylzzcom永利总站线路检测211

主办单位：化学ylzzcom永利总站线路检测、科技处

报告摘要：

  Organic nanofibers fabricated from pi-conjugated, electronic active molecules possess one-dimensional (1D) confined optical and electronic properties along the long-axis, including the long-range exciton diffusion and expedient charge transport. The former enables amplified fluorescence quenching sensing, while the latter is conducive to chemiresistor sensing. When deposited on a substrate the intertwined nanofibers form a porous super net structure with large surface area that enhances capturing analyte molecules from the air through molecular diffusion and surface adsorption. Combination of these features makes organic nanofibers unique materials for development into optoelectronic sensors with high sensitivity and fast response. To be presented in this talk includes our recent progress in the fabrication of high quality nanofibers from various building block molecules and the applications in trace vapor detection of explosives, toxic industry chemicals, drugs, and other chemical threats.