Electrical control of photon spin angular momentum in organic electroluminescent materials
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388963%3A_____%2F25%3A00642631" target="_blank" >RIV/61388963:_____/25:00642631 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1038/s41566-025-01780-4" target="_blank" >https://doi.org/10.1038/s41566-025-01780-4</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1038/s41566-025-01780-4" target="_blank" >10.1038/s41566-025-01780-4</a>
Alternative languages
Result language
angličtina
Original language name
Electrical control of photon spin angular momentum in organic electroluminescent materials
Original language description
The photon spin information encoded in circularly polarized (CP) light is of high interest for current and future technologies, including low-power displays, encrypted communications and high-performance quantum applications. Engineering organic light-emitting diodes (LED) to emit oppositely handed electroluminescent CP light typically requires access to left- and right-handed chiral molecules. In conjugated polymer LEDs, the handedness of CP electroluminescence also depends on the active-layer thickness or direction of current flow. For a given active-layer thickness, it remains unknown whether a single-handed chiral material can emit CP light with opposite handedness in the same LED architecture. Here we demonstrate organic LEDs in which the handedness of the emitted CP electroluminescence can be controlled electrically, solely by using specific interlayers with no change in the emissive material composition or thickness. We reveal that this occurs due to a change in mechanism for the generation of CP electroluminescence, as a function of the recombination zone position within the device. This result provides a paradigm shift in the realization of organic CP-LEDs with controllable spin angular momentum information and further contributes to ongoing discussions relating the fundamental physics of chiral optoelectronics.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10401 - Organic chemistry
Result continuities
Project
<a href="/en/project/GA24-10787S" target="_blank" >GA24-10787S: Molecular emitters of chiral light</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2025
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Nature Photonics
ISSN
1749-4885
e-ISSN
1749-4893
Volume of the periodical
19
Issue of the periodical within the volume
12
Country of publishing house
US - UNITED STATES
Number of pages
8
Pages from-to
1361-1366
UT code for WoS article
001624751700001
EID of the result in the Scopus database
2-s2.0-105023104207