GO: Ag Composites Materials for Dynamic Humidity Sensing Applications

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Authors

  • Selel Jain
     Department of Chemical Engineering, Siddaganga Institute of Technology, Tumkur, Karnataka 572103 ,IN
  • Shridhar Mundinamani
     Department of Physics, Siddaganga Institute of Technology Tumkur, Karnataka 572013 ,IN
  • Murthy Shekhar S
     Department of Chemical Engineering, Siddaganga Institute of Technology, Tumkur, Karnataka 572103 ,IN

DOI:

https://doi.org/10.18311/jmmf/2022/32001

Keywords:

Graphene oxide, silver crystallite, composites, Scherrer formula, Rietveld refinement, Inter-Digitated Electrodes(IDE), humidity sensor

Abstract

Silver crystallite-graphene oxide (Ag-Nps/GO) composites are widely used for various applications and are an attractive material for next-generation nano-electronic devices, and we demonstrate their use in humidity sensors. Silver crystallite (Ag-Nps) is prepared through a single step by reduction method at room temperature. The resulting crystallite is a pure phase as confirmed through X-ray diffraction (XRD) without any traces of oxides or secondary impurities. The crystallite size is around 1 μm. These crystallites are blended with synthesized graphene oxide in a different weight ratio to make the composite. Various characterization techniques like scanning electron microscopy (SEM), UV spectroscopy, and XRD are used to understand structures and surface morphology. The composite is dropped on Al printed sensor (IDE). The humidity is varied from 5% to 55%, the conductivity decreases with an increase in humidity. The sensor has a fast response/recovery time reproducible. In conclusion, the present work describes a low-cost, novel strategy for synthesizing humidity sensor applications. The sensors can be used in applications like biomedical, food processing, agriculture, pharmaceutical, and microelectronics.

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Published

2022-12-08

How to Cite

Jain, S., Mundinamani, S., & Shekhar S, M. (2022). GO: Ag Composites Materials for Dynamic Humidity Sensing Applications. Journal of Mines, Metals and Fuels, 70(8A), 376–380. https://doi.org/10.18311/jmmf/2022/32001

Issue

Volume 70, Issue 8A, August 2022

Section

Articles

License

Creative Commons License

This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.

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