A Novel Highly Sensitive Humidity Sensor Based on ZnO/SBA‐15 Hybrid Nanocomposite |
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| Authors: | Vijay K. Tomer Surender Duhan Ritu Malik Satya P. Nehra Sunita Devi |
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| Affiliation: | 1. Nanomaterials Research Laboratory, Department of Materials Science & Nanotechnology, D.C.R. University of Science & Technology, Murthal (Sonepat), Haryana, India;2. Department of Physics, D.C.R. University of Science & Technology, Murthal (Sonepat), Haryana, India;3. Center of Excellence for Energy and Environmental Studies, D.C.R. University of Science & Technology, Murthal (Sonepat), Haryana, India;4. Department of Chemistry, M.K.J.K.M, Rohtak, Haryana, India |
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| Abstract: | This work deals with the study of hydrothermally synthesized zinc oxide (ZnO) loaded mesoporous SBA‐15 hybrid nanocomposite for relative humidity sensing (RH) at room temperature. The sensor exhibits an excellent ~5 orders impedance change along with excellent linearity, quick response time (17 s), rapid recovery time (18 s), negligible hysteresis (1.2%), good repeatability, and stability (1.8%) in 11%–98% RH range. In addition, complex impedance spectra of the sensor at different RHs were analyzed to understand the humidity sensing mechanism. Our study can open a new way for realizing ZnO/SBA‐15 hybrid nanocomposite for fabrication of high‐performance RH sensors. |
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