Abstract Based on a novel hierarchical porous reduced-graphene-oxide (RGO) film, all-solid-state flexible micro-supercapacitors (MSCs) with the high performances are fabricated through a one-step laser-carving approach. The macro/mesoporous RGO film, which is desirable for the ion transport and diffusion to be used as the electrode, was prepared from graphene oxide (GO) hydrogel by blade-casting and chemical reduction. The porous RGO film after mechanical compression was patterned to give interdigitated electrodes by irradiation with a picosecond laser. The results showed that the as-prepared in-plane MSCs exhibit a high areal specific capacitance of 37.95 mF cm −2 at a current density of 0.6 mA cm −2 , and 36.38 mF cm −2 at a scan rate of 10 mV s −1 , both of which are higher than most of the reported values for all-solid-state MSCs based on carbon materials. Meanwhile, the MSCs possess superior rate capability, good mechanical stability, excellent flexibility and long cycle life. For applications, the MSCs can be easily connected in series, parallel, or combined series and parallel to output high voltage and energy.

中文翻译：

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分层多孔石墨烯薄膜：激光雕刻制造高比电容柔性微型超级电容器的理想材料

摘要 基于新型分层多孔还原氧化石墨烯 (RGO) 薄膜，通过一步激光雕刻方法制备了高性能的全固态柔性微超级电容器 (MSC)。大/中孔 RGO 薄膜是用于离子传输和扩散的理想电极，它是由氧化石墨烯 (GO) 水凝胶通过刀片浇铸和化学还原制备的。机械压缩后的多孔 RGO 薄膜被图案化以通过皮秒激光照射得到交叉电极。结果表明，所制备的面内MSC在0.6 mA cm -2 的电流密度下表现出37.95 mF cm -2 的高面积比电容，在10 mV s - 的扫描速率下表现出36.38 mF cm -2 的高面积比电容。 1、这两者都高于基于碳材料的全固态 MSC 的大多数报告值。同时，MSCs具有优异的倍率性能、良好的机械稳定性、优异的柔韧性和长循环寿命。对于应用，MSC 可以轻松串联、并联或串联和并联组合以输出高电压和能量。