Proceedings of Online school on Fundamentals of Semiconductive Quantum Dots (QDsSCHOOL)
DOI: https://doi.org/10.29363/nanoge.qdsschool.2021.005
Publication date: 30th April 2021
In this seminar we will explore quantum dot nucleation and growth, with a particular focus on mechanisms beyond the classical regime. Over the past several decades of colloidal semiconductor research, a wide variety of chemical systems have been explored to access II/VI, IV/VI, and III/V semiconductor nanomaterials. A classical understanding of nucleation and growth provides a reasonable explanation for some of these systems. It has become increasingly apparent, however, that the behavior of particle growth in many systems appreciably deviates from that predicted by classical nucleation theory. This deviation can simply affect particle size or can lead to entirely new morphologies and materials. While a complete, systematic understanding of these nonclassical pathways is an ongoing research effort, we will focus on two main concepts: the formation of kinetically persistent nuclei, that is, nanoclusters, and the non-atomistic growth of larger particles and assemblies.
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