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  2. Volume 3, Issue 1
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Online ISSN: 2788-6867

Volume3, Issue1

Room Temperature 2-Fold Morphology Porous Silicon Impedance Matching Pesticide Sensor

    Rasha B. Rashid Alwan M. Alwan Mohammed S. Mohammed

Journal of Applied Sciences and Nanotechnology, 2023, Volume 3, Issue 1, Pages 51-64
10.53293/jasn.2022.4841.1153

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Abstract

In this work, an investigation was conducted to study the effect of electrodes’ configuration of the double morphology macPSi on the performance of electrically matched impedance pesticides sensors. The purpose was to develop an efficient electrical sensor for the quantitative detection process of (Chlorpyrifos) pesticide in organic solvents. The effect of electrodes configuration of the front, front-back, and back coplanar electrodes on macPSi as based substrate was tested to select an optimum sensor metallization pathway.  The based efficient macPSi layer was fabricated using elevated laser irradiation power density at different periods. Morphological, optical, and electrical properties of the sensors were investigated using field emission scanning electron microscope (FE-SEM), X-ray diffraction (XRD), photoluminescence (PL) spectroscopy, and R-L-C measurement. The sensing method depended on measuring the resonance frequency shift as the organic solvent was exposed to the sensor’s surface. The sensor’s performance at various configurations and concentrations ppm was inspected at room temperature. The current findings revealed extremely low instabilities (less than 0.017 %), higher sensitivity, and a detection limit of 0.004ppm for top coplanar electrode configuration. The fabricated sensor is simple and low-cost for excellent quantitative pesticide detection.
Keywords:
    Impedance matching Chemical sensors Doubles morphologies Porous silicon Pesticide
Main Subjects:
  • Laser Science and Technology
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(2023). Room Temperature 2-Fold Morphology Porous Silicon Impedance Matching Pesticide Sensor. Journal of Applied Sciences and Nanotechnology, 3(1), 51-64. doi: 10.53293/jasn.2022.4841.1153
Rasha B. Rashid; Alwan M. Alwan; Mohammed S. Mohammed. "Room Temperature 2-Fold Morphology Porous Silicon Impedance Matching Pesticide Sensor". Journal of Applied Sciences and Nanotechnology, 3, 1, 2023, 51-64. doi: 10.53293/jasn.2022.4841.1153
(2023). 'Room Temperature 2-Fold Morphology Porous Silicon Impedance Matching Pesticide Sensor', Journal of Applied Sciences and Nanotechnology, 3(1), pp. 51-64. doi: 10.53293/jasn.2022.4841.1153
Room Temperature 2-Fold Morphology Porous Silicon Impedance Matching Pesticide Sensor. Journal of Applied Sciences and Nanotechnology, 2023; 3(1): 51-64. doi: 10.53293/jasn.2022.4841.1153
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Journal Information

Publisher: University of Technology - IRAQ

Email:  jasn@uotechnology.edu.iq

Editor-in-chief: Prof. Dr. Adawiya J. Haider

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Applied Sciences and Nanotechnology (JASN)

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