High-gauge-factor stretchable strain sensors are developed by utilizing a new strategy of thickness-gradient films with high durability, and high uniaxial/isotropic stretchability based on the self-pinning effect of SWCNTs. The monitoring of detailed damping vibration modes driven by weak sound based on such sensors is demonstrated, making a solid step toward real applications.
Keywords: coffee ring effects; high gauge factor; stretchable strain sensors; thickness-gradient films.
© 2015 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.