LSPR study of the kinetics of the liquid-solid phase transition in Sn nanoparticles
Artikel i vetenskaplig tidskrift, 2010

Using the localized surface plasmon resonance as a probe in solid and liquid Sn nanoparticles of 107 nm diameter and 52 nm height, we have studied their kinetics of melting and freezing at temperature ramps and, for the first time, at fixed temperatures. During temperature ramps, the kinetics exhibit distinct hysteresis. The melting occurs near the bulk melting point while the freezing is observed at much lower temperatures so that the undercooling interval is similar to 130 K. The time scale of the freezing kinetics measured at different fixed temperatures rapidly decreases as the latter are lowered. All these findings have been quantitatively described by assuming the nucleation to occur on the edges of nanoparticles and employing the classical nucleation theory with the corresponding modifications.

kinetics

Nanoplasmonic sensing

nanoparticles

Sn

Liquid-solid phase transition

LSPR

Författare

Markus Schwind

Chalmers, Teknisk fysik, Kemisk fysik

Vladimir Zhdanov

Chalmers, Teknisk fysik, Kemisk fysik

Igor Zoric

Chalmers, Teknisk fysik, Kemisk fysik

Bengt Herbert Kasemo

Chalmers, Teknisk fysik, Kemisk fysik

Nano Letters

1530-6984 (ISSN) 1530-6992 (eISSN)

Vol. 10 931-936

Ämneskategorier

Atom- och molekylfysik och optik

DOI

10.1021/nl100044k