Abstract
Flexible luminescent solar concentrators (LSCs) could deliver integrated photovoltaics in all aspects of our lives, from architecture to wearable electronics. We present and experimentally verify a model for the optimization of the external optical efficiency of LSCs under varying degrees of curvature. We demonstrate differences between the optimization of flat and bent LSCs, showing that optimal fluorophore concentrations can differ by a factor of two.
Highlights
Photovoltaic devices have the potential to be integrated into our lives on many scales, from large sizes such as buildingintegrated photovoltaics (BIPV) and vehicles, to smaller devices such as watch straps or furniture
These edge surfaces are coupled to photovoltaic panels, which convert the light into electrical energy
In order to optimize the luminescent solar concentrators (LSCs)’s external optical efficiency, a balance must be reached between having high enough fluorophore concentrations to absorb significant amount of the incident spectrum, yet low enough to not cause significant re-absorption losses
Summary
In order to optimize the LSC’s external optical efficiency (i.e., the proportion of incident photons that are successfully guided to the edges of the LSC), a balance must be reached between having high enough fluorophore concentrations to absorb significant amount of the incident spectrum, yet low enough to not cause significant re-absorption losses. We compare the optimal concentration-thickness configurations of external optical efficiency of an LSC when flat to that when bent to a semi-circular arc.
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