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论文类型：期刊论文
发表时间：2009-08-01
发表刊物：CHINESE PHYSICS LETTERS
收录刊物：SCIE、ISTIC、Scopus
卷号：26
期号：8
ISSN号：0256-307X
摘要：Carbon nanotubes (CNTs) are potential strain sensors due to their excellent mechanical and spectral properties. A new theoretical model of a CNT strain sensor is obtained by applying the polarized Raman properties of CNTs, which calculates the synthetic contributions of Raman spectra from the CNTs in random directions. By using this theoretical model, the analytic relationship between planar strain components and the Raman shift increment of uniformly dispersed CNTs is obtained, which is applicable for accurately characterizing the strain in random directions on the surface of a measured microsystem.