Size and temperature effects in heterogeneous nucleation

Description

Invited presentation Abstract: The phase transition of vapors into solid/liquid particles is oftentimes initiated by heterogeneous nucleation. To this end, a cluster of the new phase forms on the surface of a pre-existing particle. Once the cluster reaches a critical size the particle can grow quickly by condensation to sizes of macroscopic relevance. This mechanism is responsible for the formation of clouds and thus impacts the radiative transfer in the atmosphere. Similarly, the principle of heterogeneous nucleation can be used to quantitatively detect airborne nanoparticles. In this presentation I will present recent results on the size and temperature dependence of heterogeneous nucleation on nanoparticles.

Period	9 Oct 2015
Held at	Brookhaven National Laboratory, United States, New York