Please use this identifier to cite or link to this item: https://hdl.handle.net/11147/11830
Title: Understanding radiative transitions and relaxation pathways in plexcitons
Authors: Finkelstein-Shapiro, Daniel
Mante, Pierre-Adrien
Sarisozen, Sema
Wittenbecher, Lukas
Minda, Iulia
Balci, Sinan
Pullerits, Tonu
Keywords: [No Keywords]
Issue Date: 2021
Publisher: Cell Press
Abstract: Molecular aggregates on plasmonic nanoparticles have emerged as attractive systems for the studies of polaritonic light-matter states, called plexcitons. Such systems are tunable, scalable, easy to synthesize, and offer sub-wavelength confinement, all while giving access to the ultrastrong light-matter coupling regime, promising a plethora of applications. However, the complexity of these materials prevented the understanding of their excitation and relaxation phenomena. Here, we follow the relaxation pathways in plexcitons and conclude that while the metal destroys the optical coherence, the molecular aggregate coupled to surface processes significantly contributes to the energy dissipation. We use two-dimensional electronic spectroscopy with theoretical modeling to assign the different relaxation processes to either molecules or metal nanoparticle. We show that the dynamics beyond a few femtoseconds has to be considered in the language of hot electron distributions instead of the accepted lower and upper polariton branches and establish the framework for further understanding.
URI: https://doi.org/10.1016/j.chempr.2021.02.028
https://hdl.handle.net/11147/11830
ISSN: 2451-9294
Appears in Collections:Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection
WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection

Show full item record

CORE Recommender

SCOPUSTM   
Citations

3
checked on Dec 11, 2021

WEB OF SCIENCETM
Citations

1
checked on Jan 22, 2022

Page view(s)

4
checked on Jan 24, 2022

Google ScholarTM

Check

Altmetric


Items in GCRIS Repository are protected by copyright, with all rights reserved, unless otherwise indicated.