Building Materials from Colloidal Nanocrystal Arrays: Evolution of Structure, Composition, and Mechanical Properties upon the Removal of Ligands by O<sub>2</sub> Plasma.

Shaw, Santosh; Colaux, Julien L; Hay, Jennifer L; Peiris, Frank C; Cademartiri, Ludovico · Adv Mater · 2016

basic_science · Level V

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Abstract

The mechanical properties of colloidal nanocrystal superlattices can be tailored through exposure to low-pressure plasma. The elastic modulus and hardness of the ligand-free 3.7 nm ZrO<sub>2</sub> superlattice are found to be similar to bulk yttria-stabilized tetragonal polycrystals of the same relative density but without any doping.