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Title: Interplay between plasmon and single-particle excitations in a metal nanocluster

Journal Article · · Nature Communications
DOI:https://doi.org/10.1038/ncomms10107· OSTI ID:1255542
 [1];  [2];  [1]
  1. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
  2. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States). Materials Sciences Division

Plasmon-generated hot carriers are used in photovoltaic or photochemical applications. However, the interplays between the plasmon and single-particle excitations in nanosystems have not been theoretically addressed using ab initio methods. Here we show such interplays in a Ag 55 nanocluster using real-time time-dependent density functional theory simulations. We find that the disappearance of the zero-frequency peak in the Fourier transform of the band-to-band transition coefficient is a hallmark of the plasmon. We show the importance of the d-states for hot-carrier generations. If the single-particle d-to-s excitations are resonant to the plasmon frequency, the majority of the plasmon energy will be converted into hot carriers, and the overall hot-carrier generation is enhanced by the plasmon; if such resonance does not exist, we observe an intriguing Rabi oscillation between the plasmon and hot carriers. Phonons play a minor role in plasmonic dynamics in such small systems. This study provides guidance on improving plasmonic applications.

Research Organization:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States). Oak Ridge Leadership Computing Facility (OLCF); Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
Sponsoring Organization:
USDOE Office of Science (SC)
Grant/Contract Number:
AC05-00OR22725; SC0004993; AC02-05CH11231
OSTI ID:
1255542
Alternate ID(s):
OSTI ID: 1378695
Journal Information:
Nature Communications, Vol. 6; ISSN 2041-1723
Publisher:
Nature Publishing GroupCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 100 works
Citation information provided by
Web of Science

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Cited By (17)

2D Binary Plasmonic Nanoassemblies with Semiconductor n/p-Doping-Like Properties journal May 2018
Electronic Rearrangement in Molecular Plasmons: An Electron Density and Electrostatic Potential-Based Study journal March 2018
Strong Collectivity of Optical Transitions in Lead Halide Perovskite Quantum Dots journal January 2020
Plasmonic hot electron transport drives nano-localized chemistry journal March 2017
Single plasmon hot carrier generation in metallic nanoparticles journal May 2019
Direct hot-carrier transfer in plasmonic catalysis journal January 2019
Plasmon-induced nonlinear response of silver atomic chains journal January 2018
Insight into the charge transport correlation in Au x clusters and graphene quantum dots deposited on TiO 2 nanotubes for photoelectrochemical oxygen evolution journal January 2018
Momentum-resolved TDDFT algorithm in atomic basis for real time tracking of electronic excitation journal October 2018
Hot electron mediated enhancement in the decay rates of persistent photocurrent in gold nanoparticles embedded indium oxide films journal May 2019
Plasmon excitations in chemically heterogeneous nanoarrays journal June 2020
Coulomb effects on the photoexcited quantum dynamics of electrons in a plasmonic nanosphere journal October 2018
Theory and technology of SPASERs journal January 2017
Momentum-resolved TDDFT algorithm in atomic basis for real time tracking of electronic excitation text January 2017
Quantum Plasmonic Nanoantennas text January 2017
Coulomb effects on the photo-excited quantum dynamics of electrons in a plasmonic nanosphere text January 2017
Single plasmon hot carrier generation in metallic nanoparticles preprint January 2019

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