| 초록 |
Recently, research on integrated self-charging power packs is attracting attention as the need for portable and sustainable energy sources and interest in miniaturization and multi-functionality of electronic components increases. In this work, we demonstrate a self-charging power system (SCPS) in which inverted organic solar cell (iOSC) and solid-state supercapacitor (SC) share a indium-tin-oxide (ITO) electrode. iOSC is assembled onto ITO-coated glass substrates and then SC is formed onto same ITO substrate, leading to share the ITO electrode. The energy harvested by iOSC is stored in the SC via the ITO electrode, enabling a stable and continuous energy supply without additional charging process. When the SC of the SCPS is charged by the iOSC under AM 1.5 G of illumination, the overall energy conversion-storage efficiency is ca. 2.27%. Hence, this power system could prove to be very useful for small, lightweight devices and fabrication of next generation power system. |
