Journal
MODERN PHYSICS LETTERS B
Volume 29, Issue 6-7, Pages -Publisher
WORLD SCIENTIFIC PUBL CO PTE LTD
DOI: 10.1142/S0217984915400461
Keywords
Conducting polythiophene; single-walled carbon nanotubes; dielectrophoretic technique; chemiresistive sensor; charge controlled potentiostatic deposition
Funding
- Department of Science and Technology (DST), New Delhi, India [DST/TSG/PT/2010/11-CG, SR/NM/NS-94/2009]
Ask authors/readers for more resources
In the present investigation, a chemiresistive sensor based on conducting polythiophene-modified single-walled carbon nanotubes (SWNTs) for NO2 detection has been reported. The SWNTs were aligned across 3 mu m gap between two gold microelectrodes on Si/SiO2 substrate. Alignment of SWNTs was carried out by using AC dielectrophoretic technique and it was confirmed by current-voltage (I-V) measurement. Aligned SWNTs were modified by conducting polythiophene using charge controlled potentiostatic deposition and it was confirmed by field-effect transistor (FET) and electrochemical measurements. Polythiophene-modified SWNT devices were used for the NO2 detection in chemiresistive modality. This sensor exhibited very good linear response range from 10 ppb to 10 ppm.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available