Perovskite materials for sensing applications: Recent advances and challenges

Perovskite materials have attracted significant interest due to their distinctive electronic and optical properties, making them highly suitable for various electronic and optical devices. The exceptional hydration-dehydration, electronic transition, adsorption–desorption, phase transition, and ion intercalation-declaration suggest their high potential for sensor applications. Furthermore, their inherent tenability allows precise manipulation of their properties, making them an exceptional choice for sensing applications. In particular, perovskites demonstrate exceptional photodetection abilities characterized by high sensitivity and fast response times, rendering them ideal for the development of optical sensors for medical diagnostics and environmental monitoring. Additionally, they hold promise in gas sensing applications, detecting specific gases with high sensitivity and opening up a wide range of potential applications in industrial process control and environmental monitoring. Although perovskite materials have gained attention due to their unique properties, their stability in the presence of moisture or oxygen remains a significant challenge and is an active area of research. To keep researchers well-informed about the rapidly evolving field of materials science, this study provides a comprehensive evaluation of recent applications of perovskite materials-based sensors. Specifically, the focus is on chemiresistive gas sensors based on perovskite oxides and fluorescence/photoelectrochemical sensors based on halide perovskites. Through the evaluation of these advancements, researchers can gain valuable insights into the immense potential of perovskite materials for driving the development of innovative sensor technologies.