TY - JOUR
T1 - Photo-Rechargeable Asymmetric Supercapacitors Exceeding Light-to-Charge Storage Efficiency over 21% under Indoor Light
AU - Aftabuzzaman, Md
AU - Masud,
AU - Zhou, Haoran
AU - Kim, Hyung Mun
AU - Kang, Yongku
AU - Kim, Hwan Kyu
N1 - Publisher Copyright:
© 2023 Wiley-VCH GmbH.
PY - 2024/1/25
Y1 - 2024/1/25
N2 - Photo-rechargeable energy storage devices are appealing for substantial research attention because of their possible applications in the Internet of Things (IoT) and low-powered miniaturized portable electronics. However, due to the incompatibility of the photovoltaics and energy storage systems (ESSs), the overall light-to-storage efficiency is limited under indoor light conditions. Herein, a porous carbon scaffold MnO-Mn3O4/C microsphere-based monolithic dye-sensitized photo-rechargeable asymmetric supercapacitor (DSPC) is fabricated. The integrated DSPC has a high areal specific capacitance of 281.9 mF cm−2 at the discharge rate of 0.01 mA cm−2. The light-to-electrical conversion efficiency of the DSSC is 27.6% under the 1000 lux compact fluorescent lamp (CFL). The DSPC shows an outstanding light-to-charge storage efficiency of 21.6%, which is higher than that reported ever. Furthermore, the fabricated polymer gel electrolyte-based quasi-solid state (QSS) DSPC shows similar overall conversion efficiency with superior cycling capability. This work shows a convenient fabrication process for a wireless power pack of interest with outstanding performance.
AB - Photo-rechargeable energy storage devices are appealing for substantial research attention because of their possible applications in the Internet of Things (IoT) and low-powered miniaturized portable electronics. However, due to the incompatibility of the photovoltaics and energy storage systems (ESSs), the overall light-to-storage efficiency is limited under indoor light conditions. Herein, a porous carbon scaffold MnO-Mn3O4/C microsphere-based monolithic dye-sensitized photo-rechargeable asymmetric supercapacitor (DSPC) is fabricated. The integrated DSPC has a high areal specific capacitance of 281.9 mF cm−2 at the discharge rate of 0.01 mA cm−2. The light-to-electrical conversion efficiency of the DSSC is 27.6% under the 1000 lux compact fluorescent lamp (CFL). The DSPC shows an outstanding light-to-charge storage efficiency of 21.6%, which is higher than that reported ever. Furthermore, the fabricated polymer gel electrolyte-based quasi-solid state (QSS) DSPC shows similar overall conversion efficiency with superior cycling capability. This work shows a convenient fabrication process for a wireless power pack of interest with outstanding performance.
KW - areal specific capacitance
KW - asymmetric supercapacitors
KW - dye-sensitized solar cell
KW - light-to-charge storage efficiency
KW - light-to-electrical conversion efficiency
KW - photo-rechargeable energy storage devices
UR - http://www.scopus.com/inward/record.url?scp=85173455156&partnerID=8YFLogxK
U2 - 10.1002/smll.202302826
DO - 10.1002/smll.202302826
M3 - Article
C2 - 37794620
AN - SCOPUS:85173455156
SN - 1613-6810
VL - 20
JO - Small
JF - Small
IS - 4
M1 - 2302826
ER -