Exciton-trion conversion dynamics in a single molecule
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F21%3A00543096" target="_blank" >RIV/68378271:_____/21:00543096 - isvavai.cz</a>
Alternative codes found
RIV/00216208:11320/21:10431709 RIV/61989592:15640/21:73607375
Result on the web
<a href="https://doi.org/10.1021/acsnano.1c01318" target="_blank" >https://doi.org/10.1021/acsnano.1c01318</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1021/acsnano.1c01318" target="_blank" >10.1021/acsnano.1c01318</a>
Alternative languages
Result language
angličtina
Original language name
Exciton-trion conversion dynamics in a single molecule
Original language description
Charged optical excitations (trions) generated by charge carrier injection are crucial for emerging optoelectronic technologies as they can be produced and manipulated by electric fields. Trions and neutral excitons can be efficiently induced in single molecules by means of tip-enhanced spectromicroscopic techniques. However, little is known of the exciton-trion dynamics at single molecule level as this requires methods permitting simultaneous subnanometer and subnanosecond characterization. Here, we investigate exciton-trion dynamics by phase fluorometry, combining radio frequency modulated scanning tunnelling luminescence with time-resolved single photon detection. We generate excitons and trions in single Zinc Phthalocyanine (ZnPc) molecules on NaCl/Ag(111), and trace the evolution of the system in the picosecond range. We explore the dependence of effective lifetimes on bias voltage and describe the conversion mechanism from neutral excitons to trions, via charge capture, as the primary pathway to trion formation. We corroborate the dynamics of the system by a causally deterministic four-state model.
Czech name
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Czech description
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Classification
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
10306 - Optics (including laser optics and quantum optics)
Result continuities
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
Others
Publication year
2021
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
ACS Nano
ISSN
1936-0851
e-ISSN
1936-086X
Volume of the periodical
15
Issue of the periodical within the volume
4
Country of publishing house
US - UNITED STATES
Number of pages
6
Pages from-to
7694-7699
UT code for WoS article
000645436800152
EID of the result in the Scopus database
2-s2.0-85104916129