Detection of Basal Cancer Cells using Photodetector Based on a Novel Surface Plasmon Resonance Nanostructure Employing Perovskite Layer with an Ultra High Sensitivity

Today, basal cancer cells is one of the most frequent diseases on the planet, which is global concern for human health. In order to maximize the success of treatment, early detection is a vital prerequisite. So, a rapid and sensitive detection of cancerous basal cells is a necessary topic. In this paper, a photodetector based on SPR nanostructure consisting prism (N-FK51A), silver (Ag), hybrid organic–inorganic halide perovskites (MAPbX3 ≡ CH3NH3PbY3, with M = CH3, A = NH3 and Y = Br), and graphene layers is suggested theoretically for the detection of cancerous basal cells. It is demonstrated that the proposed photodetector with perovskite has a superior efficiency than the conventional without perovskite. Silver, perovskite, and graphene layers of suggested SPR nanostructure have been optimized to achieve the highest efficiency. The highest reached sensitivity is 298.5 deg/RIU with the optimal thicknesses of Ag (60 nm), MAPbBr 3 (3 nm), and the optimal number of graphene layers is equal to three layers. This sensitivity is ultra-high value compared to latest work that utilizes SPR configuration. As a result, the proposed SPR photodetector nominates as a strong candidate for use in several areas of biosensing applications.