Non-graphene two-dimensional nanosheets for temperature sensing based on microfiber interferometric platform: Performance analysis

Materials belongs to the family of two-dimensional materials have attracted great scientific attention inspired by the success of graphene. Now, the scientists have been discovered new monolayer materials by combining a variety of elements, such as molybdenum with sulfur and boron with nitrogen. Owing the unique properties, with ultrathin thickness, devices based on these materials exhibit novel behavior. Here we have synthesized these materials via various chemical routes and their structural, optical and morphological characterizations have been studied. Additionally, the temperature sensitive response of these materials is done by coating of these 2D materials (MoS ₂ , Graphene Oxide, hBN) via dip coating method on the microfiber probe fabricated by flame and brush technique. These probes are characterized by wavelength interrogation method within in temperature range of 40–160 °C. The MoS ₂ coated sensing probe shows temperature sensitivity as high as 527 pm/°C. Depending upon the applications the performance of the devices can be tailored and can be used for high temperature applications. The sensing probes possess the advantages of low cost, easy fabrication process, laymen application, high temperature applicability, immunity of EM interference.