Kim, Daeil Keum, Kayeon Lee, Geumbee Kim, Doyeon Lee, Sang-Soo Ha, Jeong Sook 2024-01-20T01:33:22Z 2024-01-20T01:33:22Z 2021-09-01 2017-05 2211-2855 https://pubs.kist.re.kr/handle/201004/122806 Wire-type devices that can be integrated onto fabrics are being actively studied to meet the demands for various wearable systems. In this study, we report the fabrication of wire-type supercapacitors (WSCs) integrated with wire-type UV/NO2 sensors on textiles. The WSC consists of braided carbon fiber electrodes coated with multi-walled carbon nanotubes (MWNT)/V2O5 nanowires(NWs), a cellulose-based separator, and an ionic-liquid-based electrolyte of [EMIM][TFSI]/LiCl/Al2O3 nanoparticles. This fabricated WSC exhibited good performance with an extended potential window of 1.5 V and areal capacitance of 10.6 mF/cm(2) at 0.5 mA/cm(2). Very stable electrochemical performance of the WSC was also observed under mechanical deformations of bending, knotting, and folding. In addition, stable WSC performance in water was demonstrated by encapsulation with a thermally-shrinkable tube. Furthermore, mu-light-emitting diodes and wire-type NO2 gas and UV sensors were operated by the integrated multiple WSCs on a textile: The MWNT-coated wool wire detected NO2 gas reproducibly by increase of the current. Using spiropyran and ZnO NWs, changes in both color and photocurrent were detected upon UV irradiation. This work demonstrates the great potential of our WSC for use in wearable textile sensor systems as an efficient energy storage device. English ELSEVIER SCIENCE BV HIGH-ENERGY DENSITY STATE YARN SUPERCAPACITORS ALL-SOLID-STATE HIGH-PERFORMANCE SHAPED SUPERCAPACITORS GRAPHENE FIBERS CARBON OXIDE ELECTRODES PRISTINE Flexible, water-proof, wire-type supercapacitors integrated with wire-type UV/NO2 sensors on textiles Article 10.1016/j.nanoen.2017.03.044 1 NANO ENERGY, v.35, pp.199 - 206 NANO ENERGY 35 199 206 scie scopus 000400647900023 2-s2.0-85016292246 Chemistry, Physical Nanoscience & Nanotechnology Materials Science, Multidisciplinary Physics, Applied Chemistry Science & Technology - Other Topics Materials Science Physics Article HIGH-ENERGY DENSITY STATE YARN SUPERCAPACITORS ALL-SOLID-STATE HIGH-PERFORMANCE SHAPED SUPERCAPACITORS GRAPHENE FIBERS CARBON OXIDE ELECTRODES PRISTINE Wire-type supercapacitor Integrated power supply Wire-type UV/NO2 sensor Electronic textile