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

Kód výsledku v 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>

Nalezeny alternativní kódy

RIV/68378271:_____/25:00639763 RIV/00216208:11320/25:10512138

Výsledek na webu

<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>

Jazyk výsledku

angličtina

Název v původním jazyce

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

Popis výsledku v původním jazyce

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.

Název v anglickém jazyce

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

Popis výsledku anglicky

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.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10301 - Atomic, molecular and chemical physics (physics of atoms and molecules including collision, interaction with radiation, magnetic resonances, Mössbauer effect)

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2025

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Nature Communications

ISSN

2041-1723

e-ISSN

2041-1723

Svazek periodika

16

Číslo periodika v rámci svazku

July

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

8

Strana od-do

6039

Kód UT WoS článku

001523451600049

EID výsledku v databázi Scopus

2-s2.0-105009546583