Title :
Piezoresistive resonant cantilever self-assembled with specific-group-modified CNTs for detection of trace-level VOC vapors
Author :
Xu, Pengcheng ; Yu, Haitao ; Li, Xinxin
Author_Institution :
State Key Lab. of Transducer Technol., Chinese Acad. of Sci., Shanghai, China
Abstract :
A resonant micro-cantilever chemical sensor with integrated piezoresistive self-sensing function is presented. On the micro-cantilever surface, multi-wall carbon nanotubes (CNTs) are immobilized and modified with specific sensing groups. Owing to the high specific-surface-area of MWCNTs and high-effective sensitive groups, the sensor has been used to detect sub-ppb trace-level trinitrotoluene (TNT) vapor.
Keywords :
cantilevers; carbon nanotubes; chemical sensors; microsensors; organic compounds; piezoresistive devices; C; VOC vapor; integrated piezoresistive self-sensing function; microcantilever surface; multiwall carbon nanotube; resonant microcantilever chemical sensor; subppb trace-level trinitrotoluene vapor detection;
Conference_Titel :
Sensors, 2010 IEEE
Conference_Location :
Kona, HI
Print_ISBN :
978-1-4244-8170-5
Electronic_ISBN :
1930-0395
DOI :
10.1109/ICSENS.2010.5689958
