Kinetically Controlled Fabrication of Single-Crystalline TiO₂ Nanobrush Architectures with High Energy {001} Facets.

ABSTRACT: This study demonstrates that precise control of nonequilibrium growth conditions during pulsed laser deposition (PLD) can be exploited to produce single-crystalline anatase TiO₂ nanobrush architectures with large surface areas terminated with high energy {001} facets. The data indicate that the key to nanobrush formation is controlling the atomic surface transport processes to balance defect aggregation and surface-smoothing processes. High-resolution scanning transmission electron microscopy data reveal that defect-mediated aggregation is the key to TiO₂ nanobrush formation. The large concentration of defects present at the intersection of domain boundaries promotes aggregation of PLD growth species, resulting in the growth of the single-crystalline nanobrush archite

SUBMITTER: Fan L 

PROVIDER: S-EPMC5566339 | biostudies-literature | 2017 Aug

REPOSITORIES: biostudies-literature