Tailored Zn(1-x)TixAl2O4 Nanocomposite Particles via Sol-Gel Route for High-Performance Humidity Sensing
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arXiv
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| Format: | Preprint |
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2025
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| _version_ | 1866917157072273408 |
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| author | K, Ramalakshmi Dash, Sasmita Siragam, Srilali |
| author_facet | K, Ramalakshmi Dash, Sasmita Siragam, Srilali |
| contents | Humidity sensors play a vital role in industrial, healthcare, agricultural, and environmental applications; however, conventional sensors often suffer from issues like low sensitivity, slow response, and poor stability. This study investigates sol-gel synthesized Zn0.85Ti0.15Al2O4 nanocomposite ceramics for high-performance humidity sensing. X-ray Diffraction (XRD) analysis confirms a nanocrystalline structure, while the optical bandgap of 3.76 eV indicates the enhanced sensing potential. The sensor exhibits a significant decrease in resistance, from 500 MΩ (15% RH) to 90 MΩ(90% RH), with fast response (50 s) and recovery times (50 s). Low Hysteresis values (5.86% at 30% RH, 7.69% at 60% RH, and 4.28% at 90% RH) highlight high sensitivity, stability, and repeatability. These results indicate the potential of Zn0.85Ti0.15Al2O4as a promising material for next-generation resistive humidity sensors suitable for commercial and industrial deployment. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2512_17439 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Tailored Zn(1-x)TixAl2O4 Nanocomposite Particles via Sol-Gel Route for High-Performance Humidity Sensing K, Ramalakshmi Dash, Sasmita Siragam, Srilali Applied Physics Humidity sensors play a vital role in industrial, healthcare, agricultural, and environmental applications; however, conventional sensors often suffer from issues like low sensitivity, slow response, and poor stability. This study investigates sol-gel synthesized Zn0.85Ti0.15Al2O4 nanocomposite ceramics for high-performance humidity sensing. X-ray Diffraction (XRD) analysis confirms a nanocrystalline structure, while the optical bandgap of 3.76 eV indicates the enhanced sensing potential. The sensor exhibits a significant decrease in resistance, from 500 MΩ (15% RH) to 90 MΩ(90% RH), with fast response (50 s) and recovery times (50 s). Low Hysteresis values (5.86% at 30% RH, 7.69% at 60% RH, and 4.28% at 90% RH) highlight high sensitivity, stability, and repeatability. These results indicate the potential of Zn0.85Ti0.15Al2O4as a promising material for next-generation resistive humidity sensors suitable for commercial and industrial deployment. |
| title | Tailored Zn(1-x)TixAl2O4 Nanocomposite Particles via Sol-Gel Route for High-Performance Humidity Sensing |
| topic | Applied Physics |
| url | https://arxiv.org/abs/2512.17439 |