Wide Bandgap Perovskite Photovoltaic Cells for Stray Light Recycling in a System Emitting Broadband Polarized Light

Perovskite based photovoltaic (PV) cells are unique in combining low open‐circuit voltage losses with a broad bandgap tunability. This makes them an ideal PV cell to recycle photons back into electrical power in a variety of illumination systems or light emitting devices. Here, advantage of these fe...

Full description

Saved in:
Bibliographic Details
Published in:Advanced energy materials 2022-09, Vol.12 (36), p.n/a
Main Authors: Martínez‐Denegri, Guillermo, Ferreira, Catarina G., Ruiz‐Preciado, Marco A., Fassl, Paul, Kramarenko, Mariia, Paetzold, Ulrich W., Martorell, Jordi
Format: Article
Language:English
Subjects:
Broadband
Circuits
Diffusion plating
Display devices
Energy conversion efficiency
energy efficiency
Energy gap
Illumination
Light
light recycling
Narrowband
Perovskites
Photovoltaic cells
polarization
Polarized light
Polarizers
Stray light
wide bandgap
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Perovskite based photovoltaic (PV) cells are unique in combining low open‐circuit voltage losses with a broad bandgap tunability. This makes them an ideal PV cell to recycle photons back into electrical power in a variety of illumination systems or light emitting devices. Here, advantage of these features is taken and wide bandgap (WBG) perovskite PV cells are incorporated in devices suitable for display illumination and demonstrate a high yield in stray light recycling back into electricity with up to a 37.5% power conversion efficiency. The specific device considered is a modified half‐cylinder photonic plate designed to emit diffused broadband polarized light using a nonabsorbing reflective polarizer based on a random dielectric layer distribution. It is experimentally demonstrated that light recycling using appropriately tuned WBG perovskite PV cells becomes very efficient when implemented in systems where the light is emitted from narrowband sources, even if the emission spans a broad wavelength range. Perovskite photovoltaics are ideal to efficiently recycle stray light that normally is wasted in certain illumination devices. A proof of that is demonstrated here, where the optical and photovoltaic characterization of the elements that compose an innovative light recycling design to emit polarized diffused light are presented.
ISSN:1614-6832
1614-6840
DOI:10.1002/aenm.202201473