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.

 

学历背景

1991:  清华大学化学系，获理学学士学位

1995:  中国科学院感光所（现为理化所）获理学博士学位