Recent advances in 2D black phosphorus based materials for gas sensing applications

Abstract

Black phosphorous (BP), in the recent decade, has attracted the attention of researchers as a potential sensing material due to its exceptional physical and chemical properties. This review provides a concise report on the recent trends in gas sensing applications of two-dimensional black phosphorous (2D BP). The review begins with the important properties of BP and its synthesis using both top-down and bottom-up methods. Further, an overview of the significant achievements in the gas sensing of BP for reducing and oxidizing gases is presented with a focus on both theoretical and practical findings. Most of the studies on the gas sensing capabilities of BP are simulation-based due to the unstable nature of black phosphorous. Therefore, the review represents both the theoretical and fabrication aspects of the BP-based gas sensors. As the pristine BP suffers from some intrinsic lacks such as environmental instability and poor solubility, some tuning of the property is required to obtain a stable sensing device. Therefore, the last part of the review highlights some of the methods accepted for tuning the BP properties for a stable gas sensing device.