Lee, Su Chan Patil, U. M. Kim, Sun Jun Ahn, Seokhoon Kang, Seok-Won Jun, Seong Chan 2024-01-20T04:01:39Z 2024-01-20T04:01:39Z 2021-09-03 2016-07 2046-2069 https://pubs.kist.re.kr/handle/201004/123933 In-plane micro supercapacitors (micro-SC) have attracted interest due to their high areal and volumetric capacitance that is dependent upon their electrode structure. This study proposes simply-fabricated micro-SCs based on cobalt hydroxide and electrochemically-reduced graphene oxide (erGO). The Au electron collector was prepared via photolithography, and Co(OH)(2) and erGO were deposited on the Au surface via electrodeposition. Using facile two-step fabrication method and cost-effective materials, the prepared micro-SCs exhibit good electrochemical performance in PVA-KOH-KI solid electrolyte. The in-plane interdigitated electrode maximizes the areal capacitance by increasing the facing area between the anode and cathode. The micro-SC presents good power density (100.38 mu W cm(-2)) and a wide potential window due to the electric double-layer properties of erGO and pseudocapacitive performance of Co(OH)(2). These fabricated micro-SCs are flexible and can be used in various wearable and small-scale energy storage devices. English ROYAL SOC CHEMISTRY HIGH-ENERGY-DENSITY HIGH-PERFORMANCE ALPHA-COBALT CARBON CONFIGURATION ALPHA-CO(OH)(2) FABRICATION REDUCTION STORAGE FILMS All-solid-state flexible asymmetric micro supercapacitors based on cobalt hydroxide and reduced graphene oxide electrodes Article 10.1039/c6ra06034j 1 RSC ADVANCES, v.6, no.50, pp.43844 - 43854 RSC ADVANCES 6 50 43844 43854 scie scopus 000376119000001 2-s2.0-84971290177 Chemistry, Multidisciplinary Chemistry Article HIGH-ENERGY-DENSITY HIGH-PERFORMANCE ALPHA-COBALT CARBON CONFIGURATION ALPHA-CO(OH)(2) FABRICATION REDUCTION STORAGE FILMS supercapacitor