Electron Emission Study Based on One-Dimensional Zinc Oxide Nanowire Vacuum Tunnel Junction
Nano-vacuum tunneling junction is an important functional component.Its(quasi)ballistic transport mechanism enables it to have lower power consumption and a theoretical transmission speed of up to 3×108 m/s,making it an ideal choice for achieving high-performance electronic devices.The preparation of vacuum tunnel junctions using one-dimensional nanomaterials is of great significance in promoting device miniaturization and high integration.This article designs and prepares one-dimensional tunnel junctions using stable zinc oxide nanowires,and investigates their electron emission phenomena under electrostatic field and ultrafast laser excitation.Under the excitation of ultrafast laser,a sixth power high nonlinear emission current and photocurrent modulation have been achieved,which is expected to promote the development of one-dimensional ultrafast nano-vacuum electronic devices.
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