[20p-PA3-1~42] 12.3 Functional Materials and Novel Devices

[20p-PA3-42] The Honeycomb Films Composed of Hybrid α-MnO₂ Nanoparticles for Capacitor Electrodes.

〇Ryuji Kanda¹, Masaaki Yokoyama², Yuji Hirai¹, Tsukasa Yoshida¹, Hiroya Abe^3,4, Hiroshi Yabu⁴, Akito Masuhara^1,5 (1.Grad. Sch. of Sci. Eng., Yamagata Univ., 2.Fac. Eng., Yamagata Univ., 3.FRIS, Tohoku Univ., 4.WPI-AIMR, Tohoku Univ., 5.ROEL, Yamagata Univ.)

Keywords:capacitor, manganese dioxide, Honeycomb films

Capacitors have attracted attention as next-generation storage devices because they have high-speed charge and discharge as well as excellent cycle characteristics. However, capacitors still have big issues such as low storage capacity. In this study, we fabricated a honeycomb film with electrochemically effective surface area using hybridized α-MnO₂ nanoparticles composed of polydopamine, which is capable of surface modification to various substances such as nanoparticles. By using a honeycomb film, we improved the performance of capacitor electrodes.