Light-Driven Self-Oscillation of Thermoplasmonic Nanocolloids
(2023) In Advanced Materials 35(41).- Abstract
Self-oscillation—the periodic change of a system under a non-periodic stimulus—is vital for creating low-maintenance autonomous devices in soft robotics technologies. Soft composites of macroscopic dimensions are often doped with plasmonic nanoparticles to enhance energy dissipation and generate periodic response. However, while it is still unknown whether a dispersion of photonic nanocrystals may respond to light as a soft actuator, a dynamic analysis of nanocolloids self-oscillating in a liquid is also lacking. This study presents a new self-oscillator model for illuminated colloidal systems. It predicts that the surface temperature of thermoplasmonic nanoparticles and the number density of their clusters jointly oscillate at... (More)
Self-oscillation—the periodic change of a system under a non-periodic stimulus—is vital for creating low-maintenance autonomous devices in soft robotics technologies. Soft composites of macroscopic dimensions are often doped with plasmonic nanoparticles to enhance energy dissipation and generate periodic response. However, while it is still unknown whether a dispersion of photonic nanocrystals may respond to light as a soft actuator, a dynamic analysis of nanocolloids self-oscillating in a liquid is also lacking. This study presents a new self-oscillator model for illuminated colloidal systems. It predicts that the surface temperature of thermoplasmonic nanoparticles and the number density of their clusters jointly oscillate at frequencies ranging from infrasonic to acoustic values. New experiments with spontaneously clustering gold nanorods, where the photothermal effect alters the interplay of light (stimulus) with the disperse system on a macroscopic scale, strongly support the theory. These findings enlarge the current view on self-oscillation phenomena and anticipate the colloidal state of matter to be a suitable host for accommodating light-propelled machineries. In broad terms, a complex system behavior is observed, which goes from periodic solutions (Hopf–Poincaré–Andronov bifurcation) to a new dynamic attractor driven by nanoparticle interactions, linking thermoplasmonics to nonlinearity and chaos.
(Less)
- author
- Mezzasalma, Stefano A. ; Kruse, Joscha ; Merkens, Stefan ; Lopez, Eneko ; Seifert, Andreas ; Morandotti, Roberto and Grzelczak, Marek
- publishing date
- 2023-10-12
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- energy transport, nanoparticles, reversible clustering, self-oscillation, thermoplasmonics
- in
- Advanced Materials
- volume
- 35
- issue
- 41
- article number
- 2302987
- publisher
- John Wiley & Sons Inc.
- external identifiers
-
- pmid:37343949
- scopus:85169098409
- ISSN
- 0935-9648
- DOI
- 10.1002/adma.202302987
- language
- English
- LU publication?
- no
- id
- c55e37ea-1a2a-4202-a870-d4c72f070fd9
- date added to LUP
- 2023-12-22 16:37:40
- date last changed
- 2024-04-21 02:54:09
@article{c55e37ea-1a2a-4202-a870-d4c72f070fd9,
abstract = {{<p>Self-oscillation—the periodic change of a system under a non-periodic stimulus—is vital for creating low-maintenance autonomous devices in soft robotics technologies. Soft composites of macroscopic dimensions are often doped with plasmonic nanoparticles to enhance energy dissipation and generate periodic response. However, while it is still unknown whether a dispersion of photonic nanocrystals may respond to light as a soft actuator, a dynamic analysis of nanocolloids self-oscillating in a liquid is also lacking. This study presents a new self-oscillator model for illuminated colloidal systems. It predicts that the surface temperature of thermoplasmonic nanoparticles and the number density of their clusters jointly oscillate at frequencies ranging from infrasonic to acoustic values. New experiments with spontaneously clustering gold nanorods, where the photothermal effect alters the interplay of light (stimulus) with the disperse system on a macroscopic scale, strongly support the theory. These findings enlarge the current view on self-oscillation phenomena and anticipate the colloidal state of matter to be a suitable host for accommodating light-propelled machineries. In broad terms, a complex system behavior is observed, which goes from periodic solutions (Hopf–Poincaré–Andronov bifurcation) to a new dynamic attractor driven by nanoparticle interactions, linking thermoplasmonics to nonlinearity and chaos.</p>}},
author = {{Mezzasalma, Stefano A. and Kruse, Joscha and Merkens, Stefan and Lopez, Eneko and Seifert, Andreas and Morandotti, Roberto and Grzelczak, Marek}},
issn = {{0935-9648}},
keywords = {{energy transport; nanoparticles; reversible clustering; self-oscillation; thermoplasmonics}},
language = {{eng}},
month = {{10}},
number = {{41}},
publisher = {{John Wiley & Sons Inc.}},
series = {{Advanced Materials}},
title = {{Light-Driven Self-Oscillation of Thermoplasmonic Nanocolloids}},
url = {{http://dx.doi.org/10.1002/adma.202302987}},
doi = {{10.1002/adma.202302987}},
volume = {{35}},
year = {{2023}},
}