Photopyroelectric Techniques for thermo-optical characterization of gold nano-particles

Since the first methodology, proposed by Turkevich, to produce gold nanoparticles (AuNPs), improvements have been made as to allow better controllability in their size and shape. These two parameters play important role for application of gold nanoparticles since they determine their optical and the...

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Hauptverfasser:	Chávez-Sandoval, B E, Balderas-López, J A, Padilla-Bernal, G, Moreno-Rivera, M A, Franco-Hernández, M O, Martínez-Jiménez, A, García-Franco, F
Format:	Tagungsbericht
Sprache:	eng
Schlagworte:	Controllability Gold Nanoparticles Nanostructure Optical properties Thermal diffusivity Thermal properties Wavelengths
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creator	Chávez-Sandoval, B E Balderas-López, J A Padilla-Bernal, G Moreno-Rivera, M A Franco-Hernández, M O Martínez-Jiménez, A García-Franco, F
description	Since the first methodology, proposed by Turkevich, to produce gold nanoparticles (AuNPs), improvements have been made as to allow better controllability in their size and shape. These two parameters play important role for application of gold nanoparticles since they determine their optical and thermal properties. Two photopyroelectric techniques for the measurement of the thermal diffusivity and the optical absorption coefficient for nano-particles are introduced. These thermo-physical properties were measured for the colloidal systems at different nano-particle's sizes and, for optical properties, at three different wavelengths (405 nm, 488 nm and 532 nm). No significant difference, on thermal properties, was found in the range of nano-particles' sizes studied in this work; in opposition optical properties shown more sensitive to this parameter.
doi_str_mv	10.1088/1742-6596/582/1/012027
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subjects	Controllability Gold Nanoparticles Nanostructure Optical properties Thermal diffusivity Thermal properties Wavelengths
title	Photopyroelectric Techniques for thermo-optical characterization of gold nano-particles
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