Electronic properties of the F16CuPc molecule-gold interface: Spectroscopic signature of ultra-fast charge delocalization

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F25%3A10510426" target="_blank" >RIV/00216208:11320/25:10510426 - isvavai.cz</a>

Výsledek na webu

<a href="https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=JPzNhPEU4g" target="_blank" >https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=JPzNhPEU4g</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.jpcs.2025.112823" target="_blank" >10.1016/j.jpcs.2025.112823</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Electronic properties of the F16CuPc molecule-gold interface: Spectroscopic signature of ultra-fast charge delocalization

Popis výsledku v původním jazyce

Understanding the charge transfer process at organic/metal interfaces is crucial, as it affects the efficiencies of organic electronics and photovoltaic devices. To this aim, in situ, synchrotron radiation-based photoemission and near-edge X-ray absorption fine structure (NEXAFS) combined with resonant photoemission spectroscopies (RPES) spectra were used to study the interaction and alignment of the adsorbed F16CuPc molecules on Au (111) substrate. The polarization-dependent NEXAFS reveals that F16CuPc molecules were lying flat on the Au (111) surface at both the sub-monolayer and multilayer coverages. The core-level photoemission findings suggest that an interfacial layer was formed at the molecule-Au interface for an interfacial interaction. Moreover, the molecules remained nearly flat with a small deformation, staying in close contact with the substrate. In addition, employing the core-hole clock technique, the ultrafast interfacial charge transfer time was around 12 fs at the interface of the F16CuPc thin film and the Au (111) substrate. Our results consequently provide valuable insights into the charge transfer process of a photo-excited n-type molecule on a metal surface, which will help open a new direction for the realization of the F16CuPc for organic electronic devices.

Název v anglickém jazyce

Electronic properties of the F16CuPc molecule-gold interface: Spectroscopic signature of ultra-fast charge delocalization

Popis výsledku anglicky

Understanding the charge transfer process at organic/metal interfaces is crucial, as it affects the efficiencies of organic electronics and photovoltaic devices. To this aim, in situ, synchrotron radiation-based photoemission and near-edge X-ray absorption fine structure (NEXAFS) combined with resonant photoemission spectroscopies (RPES) spectra were used to study the interaction and alignment of the adsorbed F16CuPc molecules on Au (111) substrate. The polarization-dependent NEXAFS reveals that F16CuPc molecules were lying flat on the Au (111) surface at both the sub-monolayer and multilayer coverages. The core-level photoemission findings suggest that an interfacial layer was formed at the molecule-Au interface for an interfacial interaction. Moreover, the molecules remained nearly flat with a small deformation, staying in close contact with the substrate. In addition, employing the core-hole clock technique, the ultrafast interfacial charge transfer time was around 12 fs at the interface of the F16CuPc thin film and the Au (111) substrate. Our results consequently provide valuable insights into the charge transfer process of a photo-excited n-type molecule on a metal surface, which will help open a new direction for the realization of the F16CuPc for organic electronic devices.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10305 - Fluids and plasma physics (including surface physics)

Projekt

—

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

Journal of Physics and Chemistry of Solids

ISSN

0022-3697

e-ISSN

1879-2553

Svazek periodika

205

Číslo periodika v rámci svazku

Oct

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

8

Strana od-do

112823

Kód UT WoS článku

001487798600001

EID výsledku v databázi Scopus

2-s2.0-105003817679