Closing the gap for electronic short-circuiting

  • Well-defined assemblies of photosynthetic protein complexes are required for an optimal performance of semi-artificial energy conversion devices, capable of providing unidirectional electron flow when light-harvesting proteins are interfaced with electrode surfaces. We present mixed photosystem I (PSI) monolayers constituted of native cyanobacterial PSI trimers in combination with isolated PSI monomers from the same organism. The resulting compact arrangement ensures a high density of photoactive protein complexes per unit area, providing the basis to effectively minimize short-circuiting processes that typically limit the performance of PSI-based bioelectrodes. The PSI film is further interfaced with redox polymers for optimal electron transfer, enabling highly efficient light-induced photocurrent generation. Coupling of the photocathode with a [NiFeSe]-hydrogenase confirms the possibility to realize light-induced H\(_2\) evolution.

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Author:Panpan WangORCiDGND, Anna FrankORCiDGND, Fangyuan ZhaoORCiDGND, Julian SzczesnyGND, João Ricardo Coelho JunqueiraORCiDGND, Sónia ZacariasGND, Adrian RuffORCiDGND, Marc Michael NowaczykORCiDGND, Inês A. C. PereiraORCiDGND, Matthias RögnerGND, Felipe ConzueloORCiDGND, Wolfgang SchuhmannORCiDGND
Parent Title (English):Angewandte Chemie International Edition
Subtitle (English):Photosystem I mixed monolayers enable improved anisotropic electron flow in biophotovoltaic devices
Place of publication:Weinheim
Document Type:Article
Date of Publication (online):2024/02/29
Date of first Publication:2020/10/19
Publishing Institution:Ruhr-Universität Bochum, Universitätsbibliothek
Tag:Biophotovoltaics; Electrochemistry; Langmuir–Blodgett films; Photosystem I; Redox polymers
First Page:2000
Last Page:2006
Dieser Beitrag ist auf Grund des DEAL-Wiley-Vertrages frei zugänglich.
Institutes/Facilities:Lehrstuhl für Analytische Chemie und Zentrum für Elektrochemie
Dewey Decimal Classification:Naturwissenschaften und Mathematik / Chemie, Kristallographie, Mineralogie
open_access (DINI-Set):open_access
faculties:Fakultät für Chemie und Biochemie
Licence (English):License LogoCreative Commons - CC BY 4.0 - Attribution 4.0 International