| Autor: |
Singh, Rahul Pratap, Tiwari, Prabhat Ranjan, Bharati, Keval, Bhardwaj, Bala, Singh, Kuwar Ankur, Yadav, B. C., Kumar, Santosh |
| Předmět: |
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| Zdroj: |
Journal of Solid State Electrochemistry; Jul2024, Vol. 28 Issue 7, p2385-2396, 12p |
| Abstrakt: |
Modern applications of humidity sensors include respiratory analysis, noncontact sensing, electronic skin, artificial intelligence (AI), and the Internet of Things (IoT). In this study, cobalt (Co)-doped cadmium sulphide (CdS) nanomaterials have been synthesized by the hydrothermal method. The synthesized nanomaterials have been characterized by powder X-ray diffraction (PXRD), Fourier-transform infrared (FTIR) spectroscopy, energy-dispersive X-ray spectroscopy (EDX), and field emission scanning electron microscopy (FESEM), and Brunauer-Emmett-Teller (BET). The PXRD analysis reveals that the crystallite size and lattice parameters decrease up to 10 at% and then slightly increase with the concentration of cobalt. FESEM imaging reveals the morphology of the synthesized nanomaterials. The EDX spectra show the presence of Cd, S, and Co elements. BET analysis suggests that nanomaterials have pores of 5.77 to 5.99 nm and a large surface area of 14.60 to 28.66 m2/g. FTIR spectroscopy indicates the presence of different functional groups. The synthesized Co-doped CdS nanomaterials were explored for the first time to design a thin film humidity sensor, and different humidity sensing parameters were evaluated. The developed humidity sensor has a response time of 11.86 s and a recovery time of 16.31 s, good repeatability, and a negligible ageing effect. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
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