Bimodal functionality of highly conductive nanostructured silver film towards improved performance of photosystem I-based graphene photocathode

IF 4.8 2区 化学 Q1 BIOCHEMISTRY & MOLECULAR BIOLOGY Bioelectrochemistry Pub Date : 2024-09-19 DOI:10.1016/j.bioelechem.2024.108825
Marcin Szalkowski , Małgorzata Kiliszek , Ersan Harputlu , Miriam Izzo , C. Gokhan Unlu , Sebastian Mackowski , Kasim Ocakoglu , Joanna Kargul , Dorota Kowalska
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Abstract

We present the novel design of photosystem I (PSI)-based biosolar cell, whereby conductive transparent electrode materials, such as ITO or FTO, are replaced with glass covered with silver island film. This nanostructured metallic layer combines high electric conductance with enhancing the absorption efficiency of the PSI biocatalyst via the plasmonic effect. We demonstrate strong enhancement of the photocurrent generated in the biohybrid electrode composed of oriented layers of PSI reaction centers due to plasmonic interactions of the PSI fluorophores and redox centres with the conductive silver island film.
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高导电性纳米结构银膜的双模功能,用于提高基于光系统 I 的石墨烯光电阴极的性能。
我们介绍了基于光系统 I(PSI)的生物太阳能电池的新型设计,即用覆盖银岛薄膜的玻璃取代导电透明电极材料(如 ITO 或 FTO)。这种纳米结构的金属层既具有高导电性,又能通过等离子效应提高 PSI 生物催化剂的吸收效率。我们证明,由于 PSI 荧光团和氧化还原中心与导电银岛薄膜之间的等离子相互作用,由定向 PSI 反应中心层组成的生物混合电极所产生的光电流得到了极大的增强。
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来源期刊
Bioelectrochemistry
Bioelectrochemistry 生物-电化学
CiteScore
9.10
自引率
6.00%
发文量
238
审稿时长
38 days
期刊介绍: An International Journal Devoted to Electrochemical Aspects of Biology and Biological Aspects of Electrochemistry Bioelectrochemistry is an international journal devoted to electrochemical principles in biology and biological aspects of electrochemistry. It publishes experimental and theoretical papers dealing with the electrochemical aspects of: • Electrified interfaces (electric double layers, adsorption, electron transfer, protein electrochemistry, basic principles of biosensors, biosensor interfaces and bio-nanosensor design and construction. • Electric and magnetic field effects (field-dependent processes, field interactions with molecules, intramolecular field effects, sensory systems for electric and magnetic fields, molecular and cellular mechanisms) • Bioenergetics and signal transduction (energy conversion, photosynthetic and visual membranes) • Biomembranes and model membranes (thermodynamics and mechanics, membrane transport, electroporation, fusion and insertion) • Electrochemical applications in medicine and biotechnology (drug delivery and gene transfer to cells and tissues, iontophoresis, skin electroporation, injury and repair). • Organization and use of arrays in-vitro and in-vivo, including as part of feedback control. • Electrochemical interrogation of biofilms as generated by microorganisms and tissue reaction associated with medical implants.
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