Electron Emission from the Flatland Universal Formulation of Field and Thermionic Emission for 2D Materials

摘要

We develop generalized models of electron emission from 2D materials in this work. Our models reveal intriguing emission behaviors such as the absence of space-charge-limited current, exceedingly low onset temperature for Nottingham cooling effect, universal intrinsic emission saturation effect in 1D and 2D nanomaterials, and a novel scaling universality in the thermionic carrier transport across solid-state Schottky interface. Our models provide a theoretical basis for the understanding of electron emission physics in the exotic Flatland of 2D materials.