Details
| Original language | English |
|---|---|
| Pages (from-to) | 21237-21244 |
| Number of pages | 8 |
| Journal | Journal of Physical Chemistry C |
| Volume | 128 |
| Issue number | 49 |
| Publication status | Published - 2 Dec 2024 |
Abstract
Colloidal hybrid Au/CuS nanocrystals have emerged as highly interesting dual-plasmonic materials. Femtosecond transient absorption spectroscopy (TAS) revealed that the resonant excitation of the localized surface plasmon resonance of either Au or CuS results in a transient response in the counterpart, which we attributed to Landau damping stemming from hot carriers at the domain interface. Here, we employ numerical modeling to further clarify the origin of the response in Au/CuS nanocrystals. Numerical simulations identify the UFO-shaped geometry of the Au/CuS nanocrystals, the anisotropy of CuS, and the plasmonic response modified by Landau damping during the TAS as the main governing mechanisms for the dual-plasmonic optical response. Our numerical approach provides an important tool for the modeling of TAS data and provides valuable insights for the design of innovative colloidal dual-plasmonic nanocrystals with optical anisotropy for applications in photocatalysis, thermoplasmonics, and ultrafast photonics.
ASJC Scopus subject areas
- Materials Science(all)
- Electronic, Optical and Magnetic Materials
- Energy(all)
- General Energy
- Chemistry(all)
- Physical and Theoretical Chemistry
- Materials Science(all)
- Surfaces, Coatings and Films
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In: Journal of Physical Chemistry C, Vol. 128, No. 49, 02.12.2024, p. 21237-21244.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Numerical Modeling of Transient Absorption in Hybrid Dual-Plasmonic Au/CuS Nanocrystals
AU - Habibpourmoghadam, Atefeh
AU - Xie, Wenyong
AU - Bessel, Patrick
AU - Niebur, André
AU - Antanovich, Artsiom
AU - Dorfs, Dirk
AU - Lauth, Jannika
AU - Calà Lesina, Antonio
N1 - Publisher Copyright: © 2024 The Authors. Published by American Chemical Society.
PY - 2024/12/2
Y1 - 2024/12/2
N2 - Colloidal hybrid Au/CuS nanocrystals have emerged as highly interesting dual-plasmonic materials. Femtosecond transient absorption spectroscopy (TAS) revealed that the resonant excitation of the localized surface plasmon resonance of either Au or CuS results in a transient response in the counterpart, which we attributed to Landau damping stemming from hot carriers at the domain interface. Here, we employ numerical modeling to further clarify the origin of the response in Au/CuS nanocrystals. Numerical simulations identify the UFO-shaped geometry of the Au/CuS nanocrystals, the anisotropy of CuS, and the plasmonic response modified by Landau damping during the TAS as the main governing mechanisms for the dual-plasmonic optical response. Our numerical approach provides an important tool for the modeling of TAS data and provides valuable insights for the design of innovative colloidal dual-plasmonic nanocrystals with optical anisotropy for applications in photocatalysis, thermoplasmonics, and ultrafast photonics.
AB - Colloidal hybrid Au/CuS nanocrystals have emerged as highly interesting dual-plasmonic materials. Femtosecond transient absorption spectroscopy (TAS) revealed that the resonant excitation of the localized surface plasmon resonance of either Au or CuS results in a transient response in the counterpart, which we attributed to Landau damping stemming from hot carriers at the domain interface. Here, we employ numerical modeling to further clarify the origin of the response in Au/CuS nanocrystals. Numerical simulations identify the UFO-shaped geometry of the Au/CuS nanocrystals, the anisotropy of CuS, and the plasmonic response modified by Landau damping during the TAS as the main governing mechanisms for the dual-plasmonic optical response. Our numerical approach provides an important tool for the modeling of TAS data and provides valuable insights for the design of innovative colloidal dual-plasmonic nanocrystals with optical anisotropy for applications in photocatalysis, thermoplasmonics, and ultrafast photonics.
UR - http://www.scopus.com/inward/record.url?scp=85210996206&partnerID=8YFLogxK
U2 - 10.1021/acs.jpcc.4c06776
DO - 10.1021/acs.jpcc.4c06776
M3 - Article
AN - SCOPUS:85210996206
VL - 128
SP - 21237
EP - 21244
JO - Journal of Physical Chemistry C
JF - Journal of Physical Chemistry C
SN - 1932-7447
IS - 49
ER -