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Novel highly-sensitive heavy metals sensor-based 1D phononic crystal for NiCl2 detection

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Abstract

In this work, we introduced a one-dimensional defective phononic crystal as a novel heavy metal sensor based on the appearance of the resonance peaks inside the phononic band gap for detecting NiCl2 concentrations in water. Our designed 1D-DPhC heavy metal sensor has a defect layer filled with different concentrations of NiCl2 at room temperature. A novel sensitivity, quality factor, and figure of merit values have been observed based on the resonance peaks that appeared in the proposed sensor bandgap for NiCl2 concentrations. Also, for all NiCl2 concentrations, a relationship between sensitivity and resonance frequency was introduced. Our 1D-DPhC heavy metal sensor recorded the highest sensitivity value of 3.531 (kHz/(kg/m3)) for concentration of 1.046 mol/kg. On the other hand, the lowest sensitivity value of 1.043 (kHz/(kg/m3)) was introduced for the concentration of 0.2075 mol/kg. Moreover, the highest quality factor value of 5.977 \(\times {10}^{10}\) was observed for the concentration of 0.2075 mol/kg.

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Acknowledgements

The corresponding author would like to thank the Abdus Salam International Centre for Theoretical Physics (ICTP) Trieste TS, Italy for the building discussions and motivations and for the tremendous multidisciplinary talks and events around the world.

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Shrouk E. Zaki: Conceptualization, Methodology, Formal analysis, Investigation, Writing—Original Draft. Ahmed Mehaney: Supervision, Arafa H. Aly: Supervision.

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Correspondence to Shrouk E. Zaki.

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This article is part of the Topical Collection on Photonics: Current Challenges and Emerging Applications.

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Zaki, S.E., Mehaney, A. & Aly, A.H. Novel highly-sensitive heavy metals sensor-based 1D phononic crystal for NiCl2 detection. Opt Quant Electron 54, 811 (2022). https://doi.org/10.1007/s11082-022-04212-7

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  • DOI: https://doi.org/10.1007/s11082-022-04212-7

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