Efficient light harvesting and photon sensing via engineered cooperative effects

Francesco Mattiotti*, Mohan Sarovar, Giulio G Giusteri, Giulio Giuseppe Giusteri, Fausto Borgonovi, G Luca Celardo

*Autore corrispondente per questo lavoro

Risultato della ricerca: Contributo in rivistaArticolo in rivistapeer review

Abstract

Efficient devices for light harvesting and photon sensing are fundamental building blocks of basic energy science and many essential technologies. Recent efforts have turned to biomimicry to design the next generation of light-capturing devices, partially fueled by an appreciation of the fantastic efficiency of the initial stages of natural photosynthetic systems at capturing photons. In such systems extended excitonic states are thought to play a fundamental functional role, inducing cooperative coherent effects, such as superabsorption of light and supertransfer of photoexcitations. Inspired by this observation, we design an artificial light-harvesting and photodetection device that maximally harnesses cooperative effects to enhance efficiency. The design relies on separating absorption and transfer processes (energetically and spatially) in order to overcome the fundamental obstacle to exploiting cooperative effects to enhance light capture: the enhanced emission processes that accompany superabsorption. This engineered separation of processes greatly improves the efficiency and the scalability of the system.
Lingua originaleEnglish
pagine (da-a)013027-013027-37
Numero di pagine37
RivistaNew Journal of Physics
Volume24
DOI
Stato di pubblicazionePubblicato - 2022

Keywords

  • bio-mimetic devices
  • light harvesting
  • photon sensors

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