Title :
Gas sensitivities of solvent-functionalized CNTs to volatile organic compounds
Author :
Sun, Ping ; Jiang, Yadong ; Xie, Guangzhong ; Yu, Junsheng ; Li, Xian ; Hu, Jia
Author_Institution :
Sch. of Optoelectron. Inf., Univ. of Electron. Sci. & Technol. of China (UESTC), Chengdu, China
Abstract :
In this paper, solvent-functionalized CNTs are coated on mass-sensitive quartz crystal microbalance (QCM) devices to study their gas-sensing properties for volatile organic compounds (VOCs) at room temperature. The results indicate that different solvent-functionalized CNTs under the same conditions have the dissimilar response and similar VOCs to the polarity of the solvent show better gas-sensing properties such as high sensitivity, good repeatability and reversibility. This has a certain significance to improve the selectivity of CNT based sensors.
Keywords :
carbon nanotubes; gas sensors; nanotube devices; organic compounds; CNT based sensor selectivity; gas sensitivities; mass-sensitive quartz crystal microbalance devices; room temperature gas-sensing; solvent-functionalized carbon nanotube; temperature 293 K to 298 K; volatile organic compounds; Atmosphere; Carbon nanotubes; Chemical sensors; Chemical transducers; Frequency measurement; Gas detectors; Semiconductivity; Solvents; Temperature sensors; Volatile organic compounds; Solvent-functionalized; carbon nanotube (CNT); gas sensor;
Conference_Titel :
Apperceiving Computing and Intelligence Analysis, 2009. ICACIA 2009. International Conference on
Conference_Location :
Chengdu
Print_ISBN :
978-1-4244-5204-0
Electronic_ISBN :
978-1-4244-5206-4
DOI :
10.1109/ICACIA.2009.5361128
