Imperial College London
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Professor Matthew J. Fuchter

Faculty of Natural Sciences, Department of Chemistry

Professor of Chemistry
 
 
 
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Contact

 

+44 (0)20 7594 5815m.fuchter

 
 
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Location

 

110DMolecular Sciences Research HubWhite City Campus

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Summary

 

Publications

Citation

BibTex format

@article{Wan:2022:rs.3.rs-1664101/v1,
author = {Wan, L and Liu, Y and Fuchter, M and Yan, B},
doi = {rs.3.rs-1664101/v1},
title = {Anomalous circularly polarized light emission caused by the chirality-driven topological electronic properties},
url = {http://dx.doi.org/10.21203/rs.3.rs-1664101/v1},
year = {2022}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - <jats:title>Abstract</jats:title>        <jats:p>Chirality of organic molecules is characterized by selective absorption and emission of circularly-polarized light (CPL). A consensus for chiral emission (absorption) is that molecular chirality determines the favored light handedness regardless of the light-emitting (incident) direction. Refreshing above textbook knowledge, we discover an unconventional CPL emission effect in organic light-emitting diodes (OLEDs), where counter-propagating CPLs exhibit opposite handedness. This direction-dependent CPL emission boosts the net polarization rate by orders of magnitude in OLED devices by resolving the long-lasting back-electrode reflection problem. The anomalous CPL emission originates in a ubiquitous topological electronic property in chiral materials, i.e., the orbital-momentum locking. Our work paves the way to design novel chiroptoelectronic devices and reveals that chiral materials, topological electrons, and CPL have intimate connections in the quantum regime.</jats:p>
AU  - Wan,L
AU  - Liu,Y
AU  - Fuchter,M
AU  - Yan,B
DO  - rs.3.rs-1664101/v1
PY  - 2022///
TI  - Anomalous circularly polarized light emission caused by the chirality-driven topological electronic properties
UR  - http://dx.doi.org/10.21203/rs.3.rs-1664101/v1
ER  -
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