Direct Semiconductor Laser Writing of Few‐Layer Graphene Polyhedra Networks for Flexible Solid‐State Supercapacitor,Advanced Electronic Materials

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Direct Semiconductor Laser Writing of Few‐Layer Graphene Polyhedra Networks for Flexible Solid‐State Supercapacitor
Advanced Electronic Materials ( IF 5.3 ) Pub Date : 2018-05-21 , DOI: 10.1002/aelm.201800092
Chunlin Liu _{1,

2} , Hongwei Liang ₁ , Dun Wu ₃ , Xiangyu Lu ₄ , Qiang Wang ₃

Affiliation

Here, a simple one‐step fabrication methodology is presented for continuous heteroatoms‐doped carbon polyhedra networks via direct semiconductor laser writing on polyimide sheets. It is found that these nanosized polyhedra are nonporous solids and comprised of few‐layer graphene. By the adoption of lithium containing polymer gel electrolyte, flexible solid‐state supercapacitors are designed and assembled in planar and interdigitated configuration with the irradiated plastic sheets as electrodes. When compared to their counterparts with the acid gel electrolyte, they exhibit high areal specific capacitance up to 34.7 mF cm⁻² (vs ≈8 mF cm⁻²) at the current density of 0.1 mA cm⁻². This substantial enhancement is considered to be due to the combination of Faradaic intercalation and non‐Faradaic absorption of the Li‐ions at the carbon polyhedra membrane electrodes. With the improvement of energy density, the complex of supercapacitor device is capable of lighting the liquid crystal display of a commercial hygrometer for ≈1 min.

中文翻译：

用于柔性固态超级电容器的几层石墨烯多面体网络的直接半导体激光写入

在此，通过在聚酰亚胺板上直接进行半导体激光刻写，提出了一种用于连续掺杂杂原子的碳多面体网络的简单一步制造方法。发现这些纳米级多面体是无孔固体，由几层石墨烯组成。通过采用含锂的聚合物凝胶电解质，可将柔性固态超级电容器设计为平面和叉状配置，并以辐照的塑料片作为电极进行组装。与使用酸性凝胶电解质的同类产品相比，它们在0.1 mA cm ^-2的电流密度下具有高达34.7 mF cm ^-2（vs≈8mF cm ^-2）的高面积比电容。。认为这种实质性的增强是由于碳多面体膜电极上的法拉第插层和锂离子的非法拉第吸收的结合。随着能量密度的提高，超级电容器装置的复合体能够使商用湿度计的液晶显示器点亮约1分钟。

更新日期：2018-05-21

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