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[ACS Nano] Hydrophilic/Hydrophobic Interphase-Mediated Bubble-like Stretchable Janus Ultrathin Films toward Self-Adaptive and Pneumatic Multifunctional Electronics
作者:Peng Xiao, Y Liang, J He, L Zhang,* S Wang,JC Gu, JW Zhang, YJ Huang, SW Kuo and Tao Chen*
关键字:Janus film, CNTs thin film, PDMS, flexible sensor
论文来源:期刊
具体来源:ACS Nano, 2019, 3, 4368?4378
发表时间:2019年

As promising candidates for intelligent biomimetic applications similar to living organisms, smart soft materials, have aroused extensive interests due to their extraordinarily designable structures and functionality. Herein, a bubble-like elastomer-based electronic skin that can be pneumatically actuated is achieved through hydrophilic/hydrophobic interphase mediated asymmetric functionalization. The asymmetric and controllable introduction of elastic polydimethylsiloxane (PDMS) into the carbon nanotubes (CNTs) film at air/water interface can endow the Janus ultrathin film with tunable conductivity, self-adhesivity, self-adaptivity and even self-sealed properties. As a result, the Janus films can be employed as multifunctional electronics, including self-adhesive strain sensing/thermal managing devices and even non-contact mechanical sensors as artificial eardrum for tiny air pressure detection. Significantly, these excellent features can further enable the integration of actuating and sensing functions. As a proof of concept, the Janus film can serve as a self-supported one to simultaneously imitate the controllable contracting/expanding behaviors of the vocal sac of frog and monitor the real-time current change in this process, demonstrating significant potentials in smart bionic applications.