Plasmonic enhancement of photocurrent generation in a photosystem I-based hybrid electrode
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Tarih
2020
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Royal Soc Chemistry
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
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.
Açıklama
Anahtar Kelimeler
Gold Nanoparticles, Cytochrome C(6), Energy-Transfer, Fluorescence, Graphene, Films, Light, System, Chlorophylls, Transparent
Kaynak
Journal of Materials Chemistry C
WoS Q Değeri
Q1
Scopus Q Değeri
Q1
Cilt
8
Sayı
17
