Journal
NEW JOURNAL OF PHYSICS
Volume 24, Issue 1, Pages -Publisher
IOP Publishing Ltd
DOI: 10.1088/1367-2630/ac4127
Keywords
light harvesting; photon sensors; bio-mimetic devices
Categories
Funding
- Fondazione E.U.L.O
- Iniziativa Specifica INFN-DynSysMath
- Catholic University of Sacred Heart within the program of promotion and diffusion of scientific research
- Ministero dell'Istruzione, dell'Universit`a e della Ricerca within the project PRIN [20172H2SC4]
- ConaCyt Ciencia Basica project [A1-S-22706]
- US Department of Energy, Office of Science, Office of Basic Energy Sciences under the Materials and Chemical Sciences Research for Quantum Information Research program
- DARPA DETECT program
- US Department of Energy's National Nuclear Security Administration [DE-NA0003525]
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Efficient devices for light harvesting and photon sensing are essential in energy science and various technologies. Inspired by the efficiency of natural photosynthetic systems, researchers have turned to biomimicry to design a new generation of light-capturing devices. In this study, an artificial light-harvesting and photodetection device was designed to maximize cooperative effects and enhance efficiency.
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.
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