Bipolar electrochem graphene microsupercaps

Iman Khakpour; Anis Allagui; Xian Pan; Yunhe Zhao; Chunlei Wang

doi:10.1117/12.3018212

7 June 2024 Bipolar electrochem graphene microsupercaps

Iman Khakpour, Anis Allagui, Xian Pan, Yunhe Zhao, Chunlei Wang

Proceedings Volume 13027, Energy Harvesting and Storage: Materials, Devices, and Applications XIV; 1302704 (2024) https://doi.org/10.1117/12.3018212
Event: SPIE Defense + Commercial Sensing, 2024, National Harbor, Maryland, United States

Abstract

This study introduces a successful modification of the bipolar electrochemistry (BPE) method to efficiently produce and deposit high-quality reduced graphene oxide onto a conductive substrate. This innovative approach integrates material production and device fabrication into a single-step process that is straightforward, controllable, cost-efficient, and environmentally friendly. Microstructural analysis of the deposited material reveals the formation of oriented graphene sheets on the substrate. For micro-supercapacitor fabrication, interdigitated gold microelectrode arrays are generated through regular photolithography and subsequently employed as the conductive substrate in the BPE process. The electrochemical assessment of the fabricated device through cyclic voltammetry and galvanostatic charge/discharge verifies its outstanding specific areal capacitance. Notably, electrochemical impedance spectroscopy unveils exceptional high-frequency responses, promising potential applications in AC/DC filter systems. A comprehensive presentation of the detailed results will be delivered at the upcoming conference.

Conference Presentation

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Iman Khakpour, Anis Allagui, Xian Pan, Yunhe Zhao, and Chunlei Wang "Bipolar electrochem graphene microsupercaps", Proc. SPIE 13027, Energy Harvesting and Storage: Materials, Devices, and Applications XIV, 1302704 (7 June 2024); https://doi.org/10.1117/12.3018212

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