The boom in ultrathin electronic devices and the growing need for humanization greatly facilitated the development of wearable fexible microdevices.But the technology to deposit electrode material on fexible substrate...The boom in ultrathin electronic devices and the growing need for humanization greatly facilitated the development of wearable fexible microdevices.But the technology to deposit electrode material on fexible substrate is still in its infancy.Herein,the fexible symmetric micro-supercapacitors made of carbon nanotubes(CNTs)on commercial printing paper as electrode materials were fabricated by combining tetrahedral preparator auxiliary coating method and laser-cutting interdigital configuration technique on a large scale.The electrochemical performance of the obtained micro-supercapacitors can be controlled and tuned by simple choosing different models of tetrahedral preparatory to obtain CNTs film of different thicknesses.As expected,the micro-supercapacitor based on CNTs film can deliver an areal capacitance up to 4.56 m F/cm^(2) at current of 0.02 m A.Even if,micro-supercapacitor undergoes continuous 10000 cycles,the performance of device can still remain nearly 100%.The as-demonstrated tetrahedral preparator auxiliary coating method and laser-cutting interdigital configuration technique provide new perspective for preparing microelectronics in an economical way.The paper electrode appended by CNTs achieves steerable areal capacitance,showing broad application prospect in fabricating asymmetric micro-supercapacitor with fexible planar configurations in the future.展开更多
基金supported by the National Natural Science Foundation of China(No.51701002,No.51871001,No.51672001)。
文摘The boom in ultrathin electronic devices and the growing need for humanization greatly facilitated the development of wearable fexible microdevices.But the technology to deposit electrode material on fexible substrate is still in its infancy.Herein,the fexible symmetric micro-supercapacitors made of carbon nanotubes(CNTs)on commercial printing paper as electrode materials were fabricated by combining tetrahedral preparator auxiliary coating method and laser-cutting interdigital configuration technique on a large scale.The electrochemical performance of the obtained micro-supercapacitors can be controlled and tuned by simple choosing different models of tetrahedral preparatory to obtain CNTs film of different thicknesses.As expected,the micro-supercapacitor based on CNTs film can deliver an areal capacitance up to 4.56 m F/cm^(2) at current of 0.02 m A.Even if,micro-supercapacitor undergoes continuous 10000 cycles,the performance of device can still remain nearly 100%.The as-demonstrated tetrahedral preparator auxiliary coating method and laser-cutting interdigital configuration technique provide new perspective for preparing microelectronics in an economical way.The paper electrode appended by CNTs achieves steerable areal capacitance,showing broad application prospect in fabricating asymmetric micro-supercapacitor with fexible planar configurations in the future.
