期刊
SENSORS AND ACTUATORS B-CHEMICAL
卷 275, 期 -, 页码 499-507出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.snb.2018.08.046
关键词
Molybdenum disulphide (MoS2); Nanowalls; Nanoworms (NWs); Heterojunction; Ammonia; Gas sensor
资金
- Defence Research and development Organization (DRDO), India under EPIPR 2018
- Ministry of Human Resource & Development (MHRD) India
In this work, the MoS2, CuO and n-MoS2/p-CuO heterojunction nanoworms thin films were fabricated on ITO coated glass substrate by DC magnetron sputtering method. The ammonia (NH3) gas sensing properties ofMoS(2)/ CuO nanoworms bilayer sensor towards low detection range (5-500 ppm) have been discussed in detail. The as prepared nanoworms based gas sensor reveals the fast response/recovery time (17 s/26 s), high sensing response (S.R similar to 47%) with remarkable reproducibility (15 cycles) during exposure to 100 ppm ammonia in the dry synthetic air at room temperature. Furthermore, the working principle documented to the outstanding performance of the proposed sensor towards ammonia gas was also studied in details.
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