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Carbon dioxide gas sensor based on self-assembled WGM microbottle resonator coated with polymethyl methacrylate

MOHD NOR ZAMANI BIN ABDUL AFRI1,2, MD ASHADI BIN MD JOHARI1,* , AMINAH BINTI AHMAD1, MOHD HAFIZ BIN JALI3, SULAIMAN WADI HARUN4, MOHAMAD HANIFF HARUN3

Affiliation

  1. Faculty of Electronic & Computer Technology and Engineering, Universiti Teknikal Malaysia Melaka, 76100 Melaka, Malaysia
  2. Department of Project, CTS Energy Resources, 75450 Melaka, Malaysia
  3. Faculty of Electrical Technology and Engineering, Universiti Teknikal Malaysia Melaka, 76100 Melaka, Malaysia
  4. Department of Electrical Engineering, Faculty of Engineering, University of Malaya, 50603 Kuala Lumpur, Malaysia

Abstract

In this study, researchers looked into how coating MBRs with polymethyl methacrylate (PMMA) affected their performance as a carbon dioxide gas sensor. Using a "soften-and-compress" technique, SMF28 produced the MBR shape, which was then coated in a PMMA solution to provide the three different conditions of single, double, and cascade. All forms of MBRs, even the most advanced cascade MBR-PMMA with a Q-factor of 7.47 x 105 , were distinguished by the presence of microfibre. Sensitivity, linearity, stability, and repeatability of a carbon dioxide gas sensor were evaluated using MBRPMMAs. Between 10% and 60% of carbon dioxide gas was consumed. Transmitted power analysis and wavelength shifting analysis were then compared to see which provided more accurate results. The results for Cascade MBR-PMMA were outstanding in every category. Here, the MBR with PMMA coating is arranged in a cascade, which may have an effect on the WGMs and therefore increase the MBR's adsorption capabilities as a sensor.

Keywords

Optical Microresonator, Microbottle Resonator, Carbon Dioxide Gas Sensor.

Citation

MOHD NOR ZAMANI BIN ABDUL AFRI, MD ASHADI BIN MD JOHARI, AMINAH BINTI AHMAD, MOHD HAFIZ BIN JALI, SULAIMAN WADI HARUN, MOHAMAD HANIFF HARUN, Carbon dioxide gas sensor based on self-assembled WGM microbottle resonator coated with polymethyl methacrylate, Optoelectronics and Advanced Materials - Rapid Communications, 18, 7-8, July-August 2024, pp.319-324 (2024).

Submitted at: Feb. 22, 2024

Accepted at: Aug. 1, 2024