Regulated Dynamics with Two Monolayer Steps in Vapor-Solid-Solid Growth of Nanowires.
basic_science · Level V
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- Record sourced from PubMed, PMID 35276038.
- Also identified by DOI 10.1021/acsnano.1c10666.
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Abstract
The growth of ZnTe nanowires and ZnTe-CdTe nanowire heterostructures is studied by in situ transmission electron microscopy. We describe the shape and the change of shape of the solid gold nanoparticle during vapor-solid-solid growth. We show the balance between one monolayer and two monolayer steps, which characterizes the vapor-liquid-solid and vapor-solid-solid growth modes of ZnTe. We discuss the likely role of the mismatch strain and lattice coincidence between gold and ZnTe on the predominance of two monolayer steps during vapor-solid-solid growth and on the subsequent self-regulation of the step dynamics. Finally, the formation of an interface between CdTe and ZnTe is described.