Back to Search Start Over

Excitation-Dependence of Plasmon-Induced Hot Electrons in Gold Nanoparticles

Excitation-Dependence of Plasmon-Induced Hot Electrons in Gold Nanoparticles

Authors :
Holger Lange
Florian Schulz
Emanuele Minutella
Source :
The Journal of Physical Chemistry Letters. 8:4925-4929
Publication Year :
2017
Publisher :
American Chemical Society (ACS), 2017.

Abstract

The decay of a plasmon leads to a hot electron distribution in metallic nanoparticles. Depending on the processes involved in the excitation, different distributions are obtained, which thermalize differently. We experimentally investigate excitation-wavelength and size-dependences on the generation and thermalization of the hot-electrons. We can confirm the absence of size-dependences, and we clearly observe two regimes with significantly different relaxation dynamics depending on the photon energy. The hot electron generation is more efficient when exciting with light that enables interband transitions.

Details

ISSN :
19487185
Volume :
8
Database :
OpenAIRE
Journal :
The Journal of Physical Chemistry Letters
Accession number :
edsair.doi.dedup.....7dd82d581d1dd074ce387d4aba246b21
Full Text :
https://doi.org/10.1021/acs.jpclett.7b02043