Most of the photochemical activity of bacterial photosynthetic apparatuses occurs in the reaction center, a transmembrane protein complex which converts photons into charge-separated states across the membrane with a quantum yield close to unity, fuelling the metabolism of the organism. Integrating the reaction center from the bacterium Rhodobacter sphaeroides onto electroactive surfaces, it is possible to technologically exploit the efficiency of this natural machinery to generate a photovoltage upon Near Infra-Red illumination, which can be used in electronic architectures working in the electrolytic environment such as electrolyte-gated organic transistors and bio-photonic power cells. Here, photovoltage generation in reaction center-based bio-hybrid architectures is investigated by means of chronopotentiometry, isolating the contribution of the functionalisation layers and defining novel surface functionalization strategies for photovoltage tuning.

Photovoltage generation in enzymatic bio-hybrid architectures

Michele, Bianchi;Anna, De Salvo;Marcello, Berto;Stefano, Carli;Luciano, Fadiga;Fabio, Biscarini
Penultimo
;
2020

Abstract

Most of the photochemical activity of bacterial photosynthetic apparatuses occurs in the reaction center, a transmembrane protein complex which converts photons into charge-separated states across the membrane with a quantum yield close to unity, fuelling the metabolism of the organism. Integrating the reaction center from the bacterium Rhodobacter sphaeroides onto electroactive surfaces, it is possible to technologically exploit the efficiency of this natural machinery to generate a photovoltage upon Near Infra-Red illumination, which can be used in electronic architectures working in the electrolytic environment such as electrolyte-gated organic transistors and bio-photonic power cells. Here, photovoltage generation in reaction center-based bio-hybrid architectures is investigated by means of chronopotentiometry, isolating the contribution of the functionalisation layers and defining novel surface functionalization strategies for photovoltage tuning.
2020
Di Lauro, Michele; Buscemi, Gabriella; Bianchi, Michele; DE SALVO, Anna; Berto, Marcello; Carli, Stefano; Farinola, Gianluca Maria; Fadiga, Luciano; B...espandi
File in questo prodotto:
File Dimensione Formato  
Lauro2020_Article_PhotovoltageGenerationInEnzyma.pdf

solo gestori archivio

Descrizione: versione editoriale
Tipologia: Full text (versione editoriale)
Licenza: NON PUBBLICO - Accesso privato/ristretto
Dimensione 647.85 kB
Formato Adobe PDF
647.85 kB Adobe PDF   Visualizza/Apri   Richiedi una copia
dilauro2020.pdf

accesso aperto

Descrizione: Pre-print
Tipologia: Pre-print
Licenza: Creative commons
Dimensione 1.58 MB
Formato Adobe PDF
1.58 MB Adobe PDF Visualizza/Apri

I documenti in SFERA sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11392/2426948
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 6
  • ???jsp.display-item.citation.isi??? 5
social impact