Surface Defect Engineeringļ¼šGigantic Enhancement in Detection Ability of Nanosensor by Increasing Defect Amount
Yu-Ting Lin1*, Lung-Pang Feng1, Chien-Ming Chang2, Ke Teng3, Chun-Yen Lai4, Ping-Hung Yeh1
1Physics, Tamkang University, New Taipei City, Taiwan
2Institute of EO Engineering, National Chiao Tung University, Hsinchu City, Taiwan
3Institute of Material Science & Engineering, National Central University, Taoyuan City, Taiwan
4Institute of Material Science & Engineering, National Chiao Tung University, Hsinchu City, Taiwan
* presenting author:Yu-Ting Lin, email:yuting821031@gmail.com
The polycrystalline SnO2 nanofibers (p- SnO2 NFs) can be a potential candidate for broadband light and gas detection; p-SnO2 NFs has numerous defect states on the surface and grain boundary which is fabricated by electron-spinning.
Furthermore, the mechanism and sensing ability of the p-SnO2 NFs can be invested through CO and NO alternating at the room temperature. From those results of this research work, the mechanism of the broadband light and the room temperature gas molecules detection can be clarified through the surface defect engineering; those results also inspired us for multiple nano-device design.


Keywords: polycrystalline SnO2 nanofibers, surface defect, grain boundary, broadband light, the room temperature gas molecules detection