A monolithic silicon‐mesoporous carbon photosupercapacitor with high overall photoconversion efficiency
Abstract: Off-grid devices require autonomous power supply systems that can be achieved via coupling a solar cell with a supercapacitor in one integrated multifunctional device that is able to harvest energy from the environment, store, and release it on demand. Herein, a straight-forward approach is proposed to realize a monolithic photosupercapacitor rechargeable under illumination by integrating a silicon (Si) solar cell with an electrochemical double-layer capacitor (EDLC) based on mesoporous N-doped carbon nanospheres (MPNC) in a three-electrode configuration, i.e., via a shared electrode. The optimized porous structure of the MPNC-EDLC electrodes results in a high storage efficiency of 95% and a superior performance compared to an activated carbon based EDLC. When monolithically integrated with a highly compatible and technologically robust Si solar cell in a photosupercapacitor, fast charging up to 0.63 V (2.5 V for a module of four photosupercapacitors connected in series) in less than 5 s is attained even under weak illumination conditions, with an outstanding peak overall efficiency of 11.8%. These results show high potential toward the development of photorechargeable and decentralized power sources for deployed smart electronic devices
- Standort
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Deutsche Nationalbibliothek Frankfurt am Main
- Umfang
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Online-Ressource
- Sprache
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Englisch
- Anmerkungen
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Advanced materials technologies. - 7, 11 (2022) , 2200237, ISSN: 2365-709X
- Ereignis
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Veröffentlichung
- (wo)
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Freiburg
- (wer)
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Universität
- (wann)
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2023
- Urheber
- DOI
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10.1002/admt.202200237
- URN
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urn:nbn:de:bsz:25-freidok-2328198
- Rechteinformation
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Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.
- Letzte Aktualisierung
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25.03.2025, 13:45 MEZ
Datenpartner
Deutsche Nationalbibliothek. Bei Fragen zum Objekt wenden Sie sich bitte an den Datenpartner.
Beteiligte
- Berestok, Taisiia
- Diestel, Christian
- Ortlieb, Niklas
- Glunz, Stefan
- Fischer, Anna
- Universität
Entstanden
- 2023
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