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Updated: Feb 2, 2026

Elaborate Control of Inkjet Printer for Fabrication of Chip-based Supercapacitors
Published on: November 30, 2021
High-Performance Solid-State Supercapacitors Fabricated by Pencil Drawing and Polypyrrole Depositing on Paper
Jiayou Tao1,2, Wenzhen Ma1, Nishuang Liu1
11Wuhan National Laboratory for Optoelectronics (WNLO) & School of Physics, Center for Nanoscale Characterization & Devices (CNCD), Huazhong University of Science and Technology, Wuhan, 430074 People's Republic of China.
Abstract:
A solid-state powerful supercapacitor (SC) is fabricated with a substrate of Xerox paper. Its current collector based on a foldable electronic circuit is developed by simply pencil drawing. Thin graphite sheets on paper provide effective channels for electron transmission with a low resistance of 95 Ω sq-1. The conductive organic material of polypyrrole coated on thin graphite sheets acts as the electrode material of the device. The as-fabricated SC exhibits a high specific capacitance of 52.9 F cm-3 at a scan rate of 1 mV s-1. An energy storage unit fabricated by three full-charged series SCs can drive a commercial light-emitting diode robustly. This work demonstrated a simple, versatile and cost-effective method for paper-based devices.
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