TY - JOUR
T1 - Gas sensors based on doped-CNT/SnO2 composites for NO2 detection at room temperature
AU - Leghrib, R.
AU - Felten, A.
AU - Pireaux, J.J.
AU - Llobet, E.
PY - 2011/11/30
Y1 - 2011/11/30
N2 - For the first time nitrogen or boron doped carbon nanotubes were added into a SnO matrix to develop a new hybrid CNTs/SnO gas sensors. The hybrid sensor is utilised to detect low ppb concentrations of NO in air, by measuring resistance changes of thin CNTs/SnO films. The tests are performed at room temperature. For comparison, pure SnO and N or B-substituted CNT sensors are also examined. Comparative gas sensing results reveal that the CNTs/SnO hybrid sensors exhibit much higher response towards NO , at least by a factor of 10, and good baseline recovery properties at room temperature than the blank SnO and the N or B-substituted CNT sensors. This finding shows that doping SnO with low quantity of CNTs doped with heteroatoms can dramatically improve sensitivity.
AB - For the first time nitrogen or boron doped carbon nanotubes were added into a SnO matrix to develop a new hybrid CNTs/SnO gas sensors. The hybrid sensor is utilised to detect low ppb concentrations of NO in air, by measuring resistance changes of thin CNTs/SnO films. The tests are performed at room temperature. For comparison, pure SnO and N or B-substituted CNT sensors are also examined. Comparative gas sensing results reveal that the CNTs/SnO hybrid sensors exhibit much higher response towards NO , at least by a factor of 10, and good baseline recovery properties at room temperature than the blank SnO and the N or B-substituted CNT sensors. This finding shows that doping SnO with low quantity of CNTs doped with heteroatoms can dramatically improve sensitivity.
UR - http://www.scopus.com/inward/record.url?scp=81855194408&partnerID=8YFLogxK
U2 - 10.1016/j.tsf.2011.04.186
DO - 10.1016/j.tsf.2011.04.186
M3 - Article
AN - SCOPUS:81855194408
SN - 0040-6090
VL - 520
SP - 966
EP - 970
JO - Thin Solid Films
JF - Thin Solid Films
IS - 3
ER -