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https://hdl.handle.net/11499/37158
Title: | Plasmonic enhancement of photocurrent generation in a photosystem I-based hybrid electrode | Authors: | Szalkowski, M. Harputlu, E. Kiliszek, M. Ünlü, Cumhur Gökhan Mackowski, S. Ocakoglu, K. Kargul, J. |
Keywords: | Fluorescence Fluorescence microscopy Graphene Photocurrents Plasmonics Absorption and emissions Emission intensity Fluorescence intensities Hybrid electrodes Oriented assembly Photocurrent generations Silver island films Strong enhancement Electrochemical electrodes |
Publisher: | Royal Society of Chemistry | Abstract: | We experimentally demonstrate that oriented assembly of red algal photosystem I (PSI) reaction centers on a plasmonically active Silver Island Film (SIF) leads to strong enhancement of both the fluorescence intensity and photocurrent generated upon illumination. PSI complexes were specifically attached to a monolayer of graphene deposited on the SIF layer. The results of comprehensive fluorescence microscopy point to the critical role of the SIF layer in enhancing the optical response of PSI, as we observe increased emission intensity. Hence, importantly, the strong increase of photocurrent generation demonstrated for the biohybrid electrodes can be directly associated with the plasmonic enhancement of the optical and electrochemical functionalities of PSI. The results also indicate that the graphene layer is not diminishing the influence of the plasmonic excitations in SIF on the absorption and emission of PSI. © The Royal Society of Chemistry 2020. | URI: | https://hdl.handle.net/11499/37158 https://doi.org/10.1039/c9tc06983f |
ISSN: | 2050-7534 |
Appears in Collections: | Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection Teknoloji Fakültesi Koleksiyonu WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection |
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