Room temperature excitonic coupling in self-assembled copper - Fullerene hybrid films exposed to ambient air

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389005%3A_____%2F24%3A00587018" target="_blank" >RIV/61389005:_____/24:00587018 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/68378271:_____/24:00587018

Výsledek na webu

<a href="https://doi.org/10.1016/j.carbon.2024.119230" target="_blank" >https://doi.org/10.1016/j.carbon.2024.119230</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.carbon.2024.119230" target="_blank" >10.1016/j.carbon.2024.119230</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Room temperature excitonic coupling in self-assembled copper - Fullerene hybrid films exposed to ambient air

Popis výsledku v původním jazyce

Analytically sound combination of organic and inorganic semiconductors in designing functional hybrid nanomaterials promises new advances in nanoscience and in creation of next-generation optoelectronic devices. In this work, we report on combining two contrasting semiconductors (inorganic and organic) possessing attractive optical and electronic properties, namely Cu2O (in form of small single-crystalline nanoparticles, NPs) and C-60-fullerene (as a medium supporting the NP ensemble), which were formed within the well-controlled Cu-x(O-y)C-60 hybrid films through self-assembling and ambient air exposure of the vapour-deposited Cu and C-60 mixture. The controllability of the hybrid film nanostructure was established and verified through systematic study of the films using Rutherford backscattering spectrometry, transmission electron microscopy, X-ray diffraction, Raman spectrometry and spectroscopic ellipsometry. The remarkable coincidence of the optical absorption peaks around 3.5 eV, reported for the Wannier-Mott (WM) excitons in a Cu2O crystal and detected for the Frenkel (F) excitons in the pristine C-60 film, allowed us to observe room temperature polaritons as a product of the F-WM excitonic strong coupling. Quite high coupling energy of the FWM hybrid exciton estimated for the Cu-x(O-y)C-60 films in the x interval of 5 < x < 15 (from 390 meV to 610 meV) implies the mediated effect of nanocavity photons and quantum confinement effect, strongly enhancing the hybrid exciton coupling energy. The implemented study discloses the self-assembled Cu-x(O-y)C-60 hybrid films as promising material for application in optoelectronics and nonlinear optics.

Název v anglickém jazyce

Room temperature excitonic coupling in self-assembled copper - Fullerene hybrid films exposed to ambient air

Popis výsledku anglicky

Analytically sound combination of organic and inorganic semiconductors in designing functional hybrid nanomaterials promises new advances in nanoscience and in creation of next-generation optoelectronic devices. In this work, we report on combining two contrasting semiconductors (inorganic and organic) possessing attractive optical and electronic properties, namely Cu2O (in form of small single-crystalline nanoparticles, NPs) and C-60-fullerene (as a medium supporting the NP ensemble), which were formed within the well-controlled Cu-x(O-y)C-60 hybrid films through self-assembling and ambient air exposure of the vapour-deposited Cu and C-60 mixture. The controllability of the hybrid film nanostructure was established and verified through systematic study of the films using Rutherford backscattering spectrometry, transmission electron microscopy, X-ray diffraction, Raman spectrometry and spectroscopic ellipsometry. The remarkable coincidence of the optical absorption peaks around 3.5 eV, reported for the Wannier-Mott (WM) excitons in a Cu2O crystal and detected for the Frenkel (F) excitons in the pristine C-60 film, allowed us to observe room temperature polaritons as a product of the F-WM excitonic strong coupling. Quite high coupling energy of the FWM hybrid exciton estimated for the Cu-x(O-y)C-60 films in the x interval of 5 < x < 15 (from 390 meV to 610 meV) implies the mediated effect of nanocavity photons and quantum confinement effect, strongly enhancing the hybrid exciton coupling energy. The implemented study discloses the self-assembled Cu-x(O-y)C-60 hybrid films as promising material for application in optoelectronics and nonlinear optics.

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

2024

Kód důvěrnosti údajů

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

Název periodika

Carbon

ISSN

0008-6223

e-ISSN

1873-3891

Svazek periodika

226

Číslo periodika v rámci svazku

JUN

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

12

Strana od-do

119230

Kód UT WoS článku

001243523700001

EID výsledku v databázi Scopus

2-s2.0-85192774291