Title :
Carbon Nanotube Based NH3 Gas Sensor: Ab-Initio Study
Author :
Sushmita Dandeliya;Anurag Srivastava
Author_Institution :
Comput. Nanosci. &
Abstract :
The electronic and transport properties of carbon nanotube has been investigated in presence of ammonia gas molecule, using Density Functional Theory (DFT) based ab-initio approach. The model of CNT sensor has been build using zigzag (7, 0) CNT with a NH3 molecule adsorbed on its surface. The presence of NH3 molecule results in increase of CNT band gap. From the analysis of I-V curve, it is observed that the adsorption of NH3 leads to different voltage and current curve in comparison to its pristine state confirms the presence of NH3.
Keywords :
"Carbon nanotubes","Gas detectors","Adsorption","Electron tubes","Carbon","Electrodes"
Conference_Titel :
Nanoelectronic and Information Systems (iNIS), 2015 IEEE International Symposium on
DOI :
10.1109/iNIS.2015.54
