Nanotech 2006 Vol. 1
Nanotech 2006 Vol. 1
Technical Proceedings of the 2006 NSTI Nanotechnology Conference and Trade Show, Volume 1

Carbon Nanotubes Chapter 2

Self-Welded Metal-Catalyzed Carbon Nanotube Piezoresistors with Very Large Longitudinal Piezoresistivity of ~ 4x10-8 Pa-1

Authors: M. Tabib-Azar, R. Wang and Y. Xie

Affilation: Case Western Reserve University, United States

Pages: 117 - 120

Keywords: nano-sensors, self-assembled scalable devices, NEMS

Abstract:
Self-welded multi-walled carbon nanotube (MWCNT) bridges, grown using low-pressure metal-catalyzed chemical vapor deposition technique between silicon posts, were used as tiny piezoresistors to monitor vibration and bending/deformation of silicon cantilever beams for the first time. The weld strength of CNTs measured using atomic force microscope was larger than 100 nN/CNT and their full-scale resistance change was larger than 105 .The effective longitudinal piezoresistivity of these CNTs was larger than 4x10-8 Pa-1 which is more than 10 times larger than that of 44 in silicon.

Self-Welded Metal-Catalyzed Carbon Nanotube Piezoresistors with Very Large Longitudinal Piezoresistivity of ~ 4x10-8 Pa-1

ISBN: 0-9767985-6-5
Pages: 871
Hardcopy: $119.95