Real space visualization of entangled excitonic states in charged molecular assemblies

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F22%3A00556532" target="_blank" >RIV/68378271:_____/22:00556532 - isvavai.cz</a>

Alternative codes found

RIV/00216208:11320/22:10456799

Result on the web

<a href="https://doi.org/10.1021/acsnano.1c08816" target="_blank" >https://doi.org/10.1021/acsnano.1c08816</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1021/acsnano.1c08816" target="_blank" >10.1021/acsnano.1c08816</a>

Result language

angličtina

Original language name

Real space visualization of entangled excitonic states in charged molecular assemblies

Original language description

Entanglement of excitons holds great promise for the future of quantum computing, which would use individual molecular dyes as building blocks of their circuitry. Studying entangled excitonic eigenstates emerging in coupled molecular assemblies in the near-field with submolecular resolution has the potential to bring insight into the photophysics of these fascinating quantum phenomena. In contrast to far-field spectroscopies, near-field spectroscopic mapping permits direct identification of the individual eigenmodes, type of exciton coupling, including excited states otherwise inaccessible in the far field (dark states). Here we combine tip-enhanced spectromicroscopy with atomic force microscopy to inspect delocalized single-exciton states of charged molecular assemblies engineered from individual perylenetetracarboxylic dianhydride (PTCDA) molecules. Hyperspectral mapping of the eigenstates and comparison with calculated many-body optical transitions reveals a second low-lying excited state of the anion monomers and its role in the exciton entanglement within the assemblies. We demonstrate control over the exciton coupling by switching the assembly charge states. Our results reveal the possibility of tailoring excitonic properties of organic dye aggregates for advanced functionalities and establish the methodology to address them individually at the nanoscale.

Czech name

—

Czech description

—

Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

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

Project

<a href="/en/project/GA20-18741S" target="_blank" >GA20-18741S: Luminiscence and vibrations of molecular circuits</a><br>

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2022

Confidentiality

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

Name of the periodical

ACS Nano

ISSN

1936-0851

e-ISSN

1936-086X

Volume of the periodical

16

Issue of the periodical within the volume

1

Country of publishing house

US - UNITED STATES

Number of pages

7

Pages from-to

1082-1088

UT code for WoS article

000734283700001

EID of the result in the Scopus database

2-s2.0-85121921832