Rapid and scalable production of high-quality phosphorene by plasma-liquid technology

Scalable synthesis of few-layered phosphorene typically relies on liquid ultrasonic/shear exfoliation but this technique suffers from drawbacks such as the long processing time, small sheet size, and poor quality. Herein, a simple and efficient plasma-liquid technique for rapid (∼5 minutes) and scalable production of few-layered high-quality phosphorene has been described. The plasma-exfoliated phosphorene has a tunable thickness less than 10 nanometers and a large size over a micrometer, enabling the fabrication of a macroscopic photodetection device with good photo-response. This plasma-exfoliation method has large potential in the development of phosphorene-related technologies as well as mass production of two-dimensional materials.