Modelling of piezoresistive response of carbon nanotube network based films under in-plane straining by percolation theory

作者:Miao, Y.; Yang, Q.; Chen, L.; Sammynaiken, R.; Zhang, W. J.*
来源:Applied Physics Letters, 2012, 101(6): 063120.
DOI:10.1063/1.4742893

摘要

Carbon nanotube (CNT) networks used for strain detection are one of the encouraging findings in the application of sensors. Recently, our group has discovered that in-plane strain sensors built from CNT films without surfactants exhibit a high piezoresistive response in CNT networks. In this paper, a study on modeling of piezoresistive response of CNT network based films without surfactants by percolation theory for in-plane strain detection is presented. In particular, within a conductive region, a model was built to predict piezoresistive response of CNT networks and the model predicted result shows an agreement with the experimental result.