Nanoscale Thermal Transport at Solid -Liquid Interfaces
Ge, Zhenbin
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https://hdl.handle.net/2142/82787
Description
Title
Nanoscale Thermal Transport at Solid -Liquid Interfaces
Author(s)
Ge, Zhenbin
Issue Date
2006
Doctoral Committee Chair(s)
Braun, Paul V.
Cahill, David G.
Department of Study
Materials Science and Engineering
Discipline
Materials Science and Engineering
Degree Granting Institution
University of Illinois at Urbana-Champaign
Degree Name
Ph.D.
Degree Level
Dissertation
Keyword(s)
Engineering, Materials Science
Language
eng
Abstract
We also utilized the pump-probe transient absorption measurement to probe thermal transport in Au-core polymer-shell nanoparticles. The addition of an organic co-solvent to the suspension causes the polystyrene component of the polymer shell to swell and this change in the microstructure of the shell increases the effective thermal conductivity of the shell by a factor of approximately 2. The corresponding time-scale for the cooling of the nanoparticle decreases from 200 ps to approximately 100 ps.
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