Tethering Luminescent Thermometry and Plasmonics: Light Manipulation to Assess Real-Time Thermal Flow in Nanoarchitectures
authors Brites, CDS; Fuertes, MC; Angelome, PC; Martinez, ED; Lima, PP; Soler-Illia, GJAA; Carlos, LD
nationality International
journal NANO LETTERS
author keywords Mesoporous thin films; luminescent molecular thermometry; plasmonic heating; thermal conductivity; gold nanoparticles
keywords GOLD NANOPARTICLES; HEAT-TRANSFER; FILMS; CONDUCTIVITY; NANOSCALE; TRANSPORT; NANOTHERMOMETRY; CONVERSION
abstract The past decade has seen significant progresses in the ability to fabricate new mesoporous thin films with highly controlled pore systems and emerging applications in sensing, electrical and thermal isolation, microfluidics, solar cells engineering, energy storage, and catalysis. Heat management at the micro- and nanoscale is a key issue in most of these applications, requiring a complete thermal characterization of the films that is commonly performed using electrical methods. Here, plasmonic-induced heating (through Au NPs) is combined with Tb3+/Eu3+ luminescence thermometry to measure the thermal conductivity of silica and titania mesoporous nanolayers. This innovative method yields values in accord with those measured by the evasive and destructive conventional 3 omega-electrical method, simultaneously overcoming their main limitations, for example, a mandatory deposition of additional isolating and metal layers over the films and the previous knowledge of the thermal contact resistance between the heating and the mesoporous layers.
publisher AMER CHEMICAL SOC
issn 1530-6984
year published 2017
volume 17
issue 8
beginning page 4746
ending page 4752
digital object identifier (doi) 10.1021/acs.nanolett.7b01433
web of science category Chemistry, Multidisciplinary; Chemistry, Physical; Nanoscience & Nanotechnology; Materials Science, Multidisciplinary; Physics, Applied; Physics, Condensed Matter
subject category Chemistry; Science & Technology - Other Topics; Materials Science; Physics
unique article identifier WOS:000407540300029
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journal analysis (jcr 2019):
journal impact factor 11.238
5 year journal impact factor 12.727
category normalized journal impact factor percentile 89.991
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