TY - JOUR
T1 - Highly sensitive hydrogen gas sensor based on a MoS2-Pt nanoparticle composite
AU - Gottam, Sandeep Reddy
AU - Tsai, Chi Ting
AU - Wang, Li Wen
AU - Wang, Chen Tao
AU - Lin, Chun Cheng
AU - Chu, Sheng Yuan
N1 - Funding Information:
This research was, in part, supported by the Ministry of Science and Technology, Taiwan, R.O.C., Aim for the Top University Project for National Cheng Kung University. The authors gratefully acknowledge the financial support provided by the Ministry of Science and Technology, Taiwan (grants MOST 106-2221-E-006 -226).
PY - 2020/3/15
Y1 - 2020/3/15
N2 - A highly sensitive hydrogen gas sensor composed of an MoS2-Pt nanoparticle thin film as the active layer is introduced. The sensor achieved ultra-fast response and recovery rates of 4 s and 19 s, respectively, for 100 ppm of H2. The MoS2-Pt composite film exhibits a high sensor response (R1/R2) of 10 when exposed to 100 ppm of H2 gas, which outperforms the existing metal sulfide- based sensors. The stability of the device over a period of 70 days and the selectivity of the device is outstanding. A plausible mechanism for the MoS2-Pt based H2 gas sensor is discussed. Furthermore, the sensitivity, response and recovery rates for various concentrations of H2 gas are studied. The sensor response is exceptionally promising. This sensor with metal sulfide-platinum composite active layers can be applied in the sensor field to amplify the sensing performance.
AB - A highly sensitive hydrogen gas sensor composed of an MoS2-Pt nanoparticle thin film as the active layer is introduced. The sensor achieved ultra-fast response and recovery rates of 4 s and 19 s, respectively, for 100 ppm of H2. The MoS2-Pt composite film exhibits a high sensor response (R1/R2) of 10 when exposed to 100 ppm of H2 gas, which outperforms the existing metal sulfide- based sensors. The stability of the device over a period of 70 days and the selectivity of the device is outstanding. A plausible mechanism for the MoS2-Pt based H2 gas sensor is discussed. Furthermore, the sensitivity, response and recovery rates for various concentrations of H2 gas are studied. The sensor response is exceptionally promising. This sensor with metal sulfide-platinum composite active layers can be applied in the sensor field to amplify the sensing performance.
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U2 - 10.1016/j.apsusc.2019.144981
DO - 10.1016/j.apsusc.2019.144981
M3 - Article
AN - SCOPUS:85076344381
VL - 506
JO - Applied Surface Science
JF - Applied Surface Science
SN - 0169-4332
M1 - 144981
ER -