Disentangling the components of a multiconfigurational excited state in isolated chromophore with light-scanning-tunneling microscopy

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388963%3A_____%2F25%3A00637189" target="_blank" >RIV/61388963:_____/25:00637189 - isvavai.cz</a>
Alternative codes found
RIV/68378271:_____/25:00639763 RIV/00216208:11320/25:10512138
Result on the web
<a href="https://doi.org/10.1038/s41467-025-61296-x" target="_blank" >https://doi.org/10.1038/s41467-025-61296-x</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1038/s41467-025-61296-x" target="_blank" >10.1038/s41467-025-61296-x</a>

Result language
angličtina
Original language name
Disentangling the components of a multiconfigurational excited state in isolated chromophore with light-scanning-tunneling microscopy
Original language description
Molecular radicals are efficient electroluminescent emitters due to the spin multiplicity of their electronic states. The excited states often exhibit a complex composition with multiple significant electronic configurations, which are essential for their optoelectronic properties but difficult to probe directly. Here we use light-scanning tunneling microscopy to investigate such an excited state by visualizing the response of a single radical molecule to a laser excitation. We observe characteristic atomic-scale spatial photocurrent patterns that can be tuned by applied bias voltage. We interpret these patterns as resulting from decay of an excited doublet state through sequential electron transfers with the tip and the substrate. The relative contributions of two dominating electronic configurations involved in this excited state are tuned by the applied voltage. This approach thus allows for disentangling the components of multiconfigurational excited states in single molecules.
Czech name
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Czech description
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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
10301 - Atomic, molecular and chemical physics (physics of atoms and molecules including collision, interaction with radiation, magnetic resonances, Mössbauer effect)

Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2025
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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