Probing the gold nanorod-ligand-solvent interface by plasmonic absorption and thermal decay

Aaron J. Schmidt, Joshua D. Alper, Matteo Chiesa, Gang Chen, Sarit K. Das, Kimberly Hamad-Schifferli

Research output: Contribution to journalArticlepeer-review

81 Scopus citations

Abstract

Thermal transport between CTAB passivated gold nanorods and solvent is studied by an optical pumpprobe technique. Increasing the free CTAB concentration from 1 mM to 10 mM causes a ∼3 × increase in the CTAB layer's effective thermal interface conductance and a corresponding shift in the longitudinal surface plasmon resonance. The transition occurs near the CTAB critical micelle concentration, revealing the importance of the role of free ligand on thermal transport.

Original languageBritish English
Pages (from-to)13320-13323
Number of pages4
JournalJournal of Physical Chemistry C
Volume112
Issue number35
DOIs
StatePublished - 4 Sep 2008

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