[12p-D511-1~13] 【CS.6】 Code-sharing Session of 8.3 & 9.2 & 13.6

▲ [12p-D511-1] On The Prospects of Colloidal Quantum Dot Assemblies for High-Performance Supercapacitor Electrodes

Ricky Dwi Septianto^1,2, Liming Liu⁴, Ferry Iskandar³, Nobuhiro Matsushita², Yoshihiro Iwasa^1,4, 〇Satria Zulkarnaen Bisri^1,2 (1.RIKEN-CEMS, 2.Tokyo Inst. of Tech., 3.Bandung Inst. Tech., 4.Univ. Tokyo)

Keywords:colloidal quantum dots, electric-double-layer supercapacitors, mesoscopic assemblies

High energy density, high power density, long cycling life as well as cost and environmental safety are the key parameters to be a concern in the development of energy storage devices. Supercapacitor lies between the capacitor and batteries, providing higher energy density than conventional capacitors, higher power density than batteries and long cycling-life. The use of nanomaterials is one of the most promising ways to develop superior energy storage device. The large surface area-to-volume ratio of quantum dot (QD) assemblies will enable us to obtain significantly large capacitance in EDLCs. We demonstrate high areal capacitance in the electric-double-layer supercapacitor of very thin (<100 nm) QD assembly thin-films. Formations of mesoscopic assemblies of QDs and the implications towards charge carrier accumulation as well as the potential exploitations of quantum capacitance for supercapacitors will be discussed.