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Optical Heating and Temperature Determination of Core–Shell Gold Nanoparticles and Single‐Walled Carbon Nanotube Microparticles
Author(s) -
Yashchenok Alexey,
Masic Admir,
Gorin Dmitry,
Inozemtseva Olga,
Shim Bong Sup,
Kotov Nicholas,
Skirtach Andre,
Möhwald Helmuth
Publication year - 2015
Publication title -
small
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.785
H-Index - 236
eISSN - 1613-6829
pISSN - 1613-6810
DOI - 10.1002/smll.201401697
Subject(s) - materials science , carbon nanotube , raman spectroscopy , raman scattering , nanoparticle , plasmon , nanotechnology , optical properties of carbon nanotubes , photonics , plasmonic nanoparticles , optoelectronics , nanotube , optics , physics
The real‐time temperature measurement of nanostructured materials is particularly attractive in view of increasing needs of local temperature probing with high sensitivity and resolution in nanoelectronics, integrated photonics, and biomedicine. Light‐induced heating and Raman scattering of single‐walled carbon nanotubes with adsorbed gold nanoparticles decorating silica microparticles are reported, by both green and near IR lasers. The plasmonic shell is used as nanoheater, while the single‐walled carbon nanotubes are Raman active and serve as a thermometer. Stokes and Anti‐Stokes Raman spectra of single‐walled carbon nanotubes serve to estimate the effective light‐induced temperature rise on the metal nanoparticles. The temperature rise is constant with time, indicating stability of the adsorption density. The effective temperatures derived from Stokes and Anti‐Stokes intensities are correlated with those measured in a heating stage. The resolution of the thermal experiments in our study was found to be 5–40 K.