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Enhanced luminescent solar concentrator efficiency by Foster resonance energy transfer in a tunable six‐dye absorber
Author(s) -
DelgadoSanchez JoseMaria,
LilloBravo Isidoro,
MenéndezVelázquez Amador
Publication year - 2021
Publication title -
international journal of energy research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.808
H-Index - 95
eISSN - 1099-114X
pISSN - 0363-907X
DOI - 10.1002/er.6533
Subject(s) - optoelectronics , absorption (acoustics) , luminescence , materials science , photoluminescence , förster resonance energy transfer , optics , photovoltaic system , solar energy , concentrator , photon , band gap , wavelength , fluorescence , physics , engineering , electrical engineering
Summary Luminescent solar concentrators (LSCs) collect and concentrate the solar irradiation to generate electricity through the photovoltaic effect. LSCs have attracted attention due to their concentration factors, their ability to provide wavelength‐to‐bandgap matched photons, and because of their high functionality under both diffuse and direct illumination. This paper assesses luminescent solar concentrators, in which the inclusion of a tunable photoluminescence optical layer is analyzed. Three main goals are achieved. First of all, we achieved for the first time an optical window based on a randomly oriented six‐dye system that exchanges energy sequentially between them (Förster resonance energy transfer [FRET]), which is interesting from a scientific point of view. Second, the present work achieved a broad absorption spectrum by combining six dyes, which is interesting from a practical point of view. Third, although we can achieve a similar broad absorption with a reduced number of dyes, this strategy allows to tune both the absorption of the optical window and the emission with high selectivity (by removing dyes) in order to match the emission of the luminescent system to the bandgap of the PV technology used in the LSC, whose efficiency is increased by 26.9% with respect to the reference prototype.