Universal Scaling Laws for 2D Schottky Diodes

Photodetectors, electrical switches, solar cells, and other devices based on 2D materials rely on Schottky diodes, which are metal-semiconductor junctions that force electrical current to flow in one direction. To design, model, and optimize these 2D devices, researchers need to know the mathematical relationships, or scaling laws, between the device’s transport properties and temperature. But not having found such laws for 2D Schottky diodes, many researchers have applied 3D scaling laws inappropriately. Now, Yee Sin Ang and colleagues at the Singapore University of Technology and Design have identified universal scaling laws for different configurations of Schottky diodes based on 2D materials.