Seeded colloidal methods are a premier route to compositionally and structurally complex crystals with defined and predictable symmetries for diverse applications. This outcome arises because nanocrystal seeds serve as structurally defined and preferential sites for the growth of new material phases, where the expressed nanocrystal shapes arise from the symmetry of the initial seeds and relative rate of adatom addition compared to adatom diffusion across the seeds. Yet, there are subtle aspects to seeded growth that enable nanocrystal symmetry to be reduced compared to the original seeds. This presentation will discuss those aspects, which includes the synthesis of intrinsically chiral nanocrystals with chiroptical properties.

Symmetry reduction in seeded synthesis of metal nanocrystals

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