Related Experiment Video
Updated: Aug 7, 2026

Simultaneous Synthesis of Single-walled Carbon Nanotubes and Graphene in a Magnetically-enhanced Arc Plasma
Published on: February 2, 2012
CNT-PVP field electron source formed by thermo-mechanical pulling of carbon nanotubes
Paweł Urbański1, Piotr Szyszka1, Tomasz Grzebyk1
1Faculty of Electronics, Photonics and Microsystems, Wrocław University of Science and Technology, 11/17 Janiszewski St., 50-372 Wrocław, Poland.
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.
Related Concept Videos
Finding Electric Potential From Electric Field
Van de Graaff Generator
Van de Graaff uses both smooth and pointed surfaces, conductors, and insulators to generate large static charges and, hence, large voltages. A substantial excess charge can be deposited on the sphere because it moves...
Magnetic Fields
A magnetic field is defined by the force that a charged particle experiences...
Inductively Coupled Plasma Atomic Emission Spectroscopy: Principle
The ions and electrons produced interact with the fluctuating magnetic field created by a water-cooled...
Insensitive Nuclei Enhanced by Polarization Transfer (INEPT)
P-N junction

