Diffusion growth mechanism of penta-twinned Ag nanocrystals from decahedral seeds

Jianming Cui, Saksham Phul, Kristen A. Fichthorn

Research output: Contribution to journalArticlepeer-review

4 Scopus citations

Abstract

Crystals with penta-twinned structures can be produced from diverse fcc metals, but the mechanisms that control the final product shapes are still not well understood. By using the theory of absorbing Markov chains to account for the growth of penta-twinned decahedral seeds via atom deposition and surface diffusion, we predicted the formation of various types of products: decahedra, nanorods, and nanowires. We showed that the type of product depends on the morphology of the seed and that small differences between various seed morphologies can lead to significantly different products. For the case of uncapped decahedra seeds, we compared predictions from our model to nanowire morphologies obtained in two different experiments and obtained favorable agreement. Possible extensions of our model are indicated.

Original languageEnglish (US)
Article number164707
JournalJournal of Chemical Physics
Volume158
Issue number16
DOIs
StatePublished - Apr 28 2023

All Science Journal Classification (ASJC) codes

  • General Physics and Astronomy
  • Physical and Theoretical Chemistry

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