Chiral materials and mechanisms for circularly polarized light-emitting diodes
File(s)
Author(s)
Type
Journal Article
Abstract
Circularly polarized (CP) light-emitting diodes (LEDs) hold great potential for next-generation technologies, from efficient photonic to room-temperature quantum devices. Chiral materials enable the generation of CP electroluminescence in LEDs through several different mechanisms, depending on the choice of material and device architecture. Here we summarize the mechanisms that give rise to CP electroluminescence in state-of-the-art materials, including organic small molecules, polymers, inorganic complexes and hybrid halide perovskites. We explore how the device architecture can be used to control the chiroptical properties and device performance, and suggest improvements to maximize the efficiency and dissymmetry factor of future CP LEDs.
Date Issued
2024-07
Date Acceptance
2024-02-06
Citation
Nature Photonics, 2024, 18, pp.658-668
ISSN
1749-4885
Publisher
Nature Research
Start Page
658
End Page
668
Journal / Book Title
Nature Photonics
Volume
18
Copyright Statement
Copyright © 2024 Springer Nature. This is the author’s accepted manuscript made available under a CC-BY licence in accordance with Imperial’s Research Publications Open Access policy (www.imperial.ac.uk/oa-policy)
License URL
Identifier
http://dx.doi.org/10.1038/s41566-024-01408-z
Publication Status
Published
Date Publish Online
2024-03-25