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Evaluating Different $TiO_{2}$ Nanoflower-Based Composites for Humidity Detection
| Content Provider | MDPI |
|---|---|
| Author | Zahidi, Musa Mohamed Mamat, Mohamad Hafiz Malek, Mohd Firdaus Yaakob, Muhamad Kamil Ahmad, Mohd Khairul Bakar, Suriani Abu Mohamed, Azmi Subki, A. Shamsul Rahimi A. Mahmood, Mohamad Rusop |
| Copyright Year | 2022 |
| Description | Unique three-dimensional (3D) titanium dioxide $(TiO_{2}$) nanoflowers (TFNA) have shown great potential for humidity sensing applications, due to their large surface area-to-volume ratio and high hydrophilicity. The formation of a composite with other materials could further enhance the performance of this material. In this work, the effect of different types of composites on the performance of a TNFA-based humidity sensor was examined. NiO, ZnO, rGO, and PVDF have been explored as possible composite pairing candidates with $TiO_{2}$ nanoflowers, which were prepared via a modified solution immersion method. The properties of the composites were examined using field emission electron spectroscopy (FESEM), X-ray diffractometry (XRD), transmission electron microscopy (TEM), X-ray photoelectron spectroscopy (XPS), current-voltage (I-V) analysis, Hall effect measurement, and contact angle measurement. The performance of the humidity sensor was assessed using a humidity sensor measurement system inside a humidity-controlled chamber. Based on the result, the combination of $TiO_{2}$ with rGO produced the highest sensor response at 39,590%. The achievement is attributed to the increase in the electrical conductivity, hydrophilicity, and specific surface area of the composite. |
| Starting Page | 5794 |
| e-ISSN | 14248220 |
| DOI | 10.3390/s22155794 |
| Journal | Sensors |
| Issue Number | 15 |
| Volume Number | 22 |
| Language | English |
| Publisher | MDPI |
| Publisher Date | 2022-08-03 |
| Access Restriction | Open |
| Subject Keyword | Sensors Tio2 Nanoflower Solution Immersion Method Composite Humidity Sensor |
| Content Type | Text |
| Resource Type | Article |