In-plane micro-supercapacitor using polymer nanosheet assembly as a weak acid solid electrolyte

Abstract

In-plane micro-supercapacitors, in which the electrodes are arranged on the same plane have attracted much attention because of their light weight, simple device structure, etc. In this paper, micro-supercapacitors were fabricated by using polymer nanosheet multilayer film as a solid electrolyte. The micro-supercapacitors were fabricated by sequential deposition poly(N-dodecyl acrylamide-co-acrylic acid) monolayer onto a solid substrate with interdigitated gold electrodes. The capacitor characteristics were investigated by cyclic voltammetry under saturated humidity condition. It was revealed that the micro-supercapacitor showed a capacitance of 33 µF/cm².

Keywords:

• Langmuir-Blodgett film
• proton conductivity
• capacitor

Additional information

Funding

This work was supported by KAKENHI (No. 18H02026) the Japan Society for the Promotion of Science (JSPS), the Murata Science Foundation and the Research Program "Dynamic Alliance for Open Innovation Bridging Human, Environment and Materials" within the "Network Joint Research Center for Materials and Devices."