CNT-PVP field electron source formed by thermo-mechanical pulling of carbon nanotubes

Abstract

The article presents a novel nanomaterial-based field electron source intended for use in MEMS (microelectromechanical system). The emitter structure consists of a composite of carbon nanotubes (CNTs) and cross-linked polyvinyl-pyrrolidone (PVP). Its production process is based on the thermo-mechanical extraction method. This source is characterized by a low threshold voltage, high current, high thermal resistance and the possibility of uninterrupted operation for many hours. Due to their ease of forming and high thermal resistance, CNT-PVP composites are perfect as electron sources for MEMS systems. Such emitters perfectly withstand the conditions of anodic bonding without compromising their emission properties after the process.