Abstract

Reliable ohmic contacts were established in order to study the strain sensitivity of nanowires and nanobelts. Significant conductance increases of up to 113% were observed on bending individual ZnO nanowires or CdS nanobelts. This bending strain-induced conductance enhancement was confirmed by a variety of bending measurements, such as using different manipulating tips (silicon, glass or tungsten) to bend the nanowires or nanobelts, and is explained by bending-induced effective tensile strain based on the principle of the piezoresistance effect.

https://static-content.springer.com/image/art%3A10.1007%2Fs12274-009-9053-4/MediaObjects/12274_2009_9053_Fig1_HTML.jpg

Keywords

ZnO nanowires bending strain piezoresistance conductance enhancement

Copyright information

© Tsinghua University Press and Springer Berlin Heidelberg 2009