Recent Progress on Research of Contact Resistance of Carbon Nanotubes

This paper reviews the recent progress on the research of contact resistance of carbon nanotubes (CNTs), including the contact resistance between CNTs and electrodes/metals and that between CNTs. In particular, the current research advances in improving CNT contact resistance are presented. The challenges in improving CNT contact resistance are also addressed from a practical point of view. A thorough understanding of the electrical contact properties of CNTs helps to explore new methods to improve their contact resistance for full application of this unique group of materials.