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A Symmetry-Based Kinematic Theory for Nanocrystal Morphology Design.

ABSTRACT: The growth of crystalline nanoparticles (NPs) generally involves three processes: nucleation, growth, and shape evolution. Among them, the shape evolution is less understood, despite the importance of morphology for NP properties. Here, we propose a symmetry-based kinematic theory (SBKT) based on classical growth theories to illustrate the process. Based on the crystal lattice, nucleus (or seed) symmetry, and the preferential growth directions under the experimental conditions, the SBKT can illustrate the growth trajectories. The theory accommodates the conventional criteria of the major existing theories for crystal growth and provides tools to better understand the symmetry-breaking process during the growth of anisotropic structures. Furthermore, complex dendritic growth is theoretically and experimentally demonstrated. Thus, it provides a framework to explain the shape evolution, and extends the morphogenesis prediction to cases, which cannot be treated by other theories.

SUBMITTER: Ni B

PROVIDER: S-EPMC9310755 | biostudies-literature | 2022 May

REPOSITORIES: biostudies-literature

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A Symmetry-Based Kinematic Theory for Nanocrystal Morphology Design.

Ni Bing B González-Rubio Guillermo G Kirner Felizitas F Zhang Siyuan S Cölfen Helmut H

Angewandte Chemie (International ed. in English) 20220314 20

The growth of crystalline nanoparticles (NPs) generally involves three processes: nucleation, growth, and shape evolution. Among them, the shape evolution is less understood, despite the importance of morphology for NP properties. Here, we propose a symmetry-based kinematic theory (SBKT) based on classical growth theories to illustrate the process. Based on the crystal lattice, nucleus (or seed) symmetry, and the preferential growth directions under the experimental conditions, the SBKT can illu ...[more]

PMID: 35238123

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Dataset Information

A Symmetry-Based Kinematic Theory for Nanocrystal Morphology Design.

Publications

A Symmetry-Based Kinematic Theory for Nanocrystal Morphology Design.

Similar Datasets

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