Harith Ahmad, Maryam Jasmine Mohd Makhfuz, Norazriena Yusoff, Rozalina Zakaria
The performance of the surface plasmon resonance (SPR) sensors using gold (Au)-coated arc-shaped fiber and titanium carbide (Ti2C) MXene deposited on the Au-coated arc-shaped fiber was investigated using different concentrations of lead ions (Pb2+). The sensitivity of the Ti2C deposited Au-coated arc-shaped fiber SPR sensor was 14.81 nm/M, about 1.3 times better than that of Au coating alone. The Ti2C deposited Au-coated arc-shaped fiber SPR sensor's performance has a detection limit (LOD) of 0.241 M, detection accuracy (DA) of 6.58 × 10-3 nm−1, the figure of merit (FOM) of 0.097 M−1, and a sensor resolution of 0.101 M. The large surface area of MXene enhances surface contact, and the formation of functional groups (–OH, =O, -F) on the MXene surfaces promotes hydrophilic properties, facilitating the trapping of water molecules. This work provides a foundation for experimental exploration into integrating other MXene materials with optical fiber SPR sensing devices. © 2024
Photonics Research Centre, Universiti Malaya, Kuala Lumpur, 50603, Malaysia; Department of Physics, Faculty of Science, Universiti Malaya, Kuala Lumpur, 50603, Malaysia; Universiti Kuala Lumpur British Malaysian Institute (UniKL BMI), Batu 8, Jln Sungai Pusu, Selangor, 53100, Malaysia; Department of Physics, Faculty of Mathematics and Natural Sciences, Universitas Negeri Malang, Jalan Semarang 5, Malang, 65145, Indonesia
