Precisely synthesized interfaces create plentiful oxygen vacancies in an oxide ‘nanobrush’
1 MIN READ

Precisely synthesized interfaces create plentiful oxygen vacancies in an oxide ‘nanobrush’

Superlattice nanobrush
A CeO2/Y2O3 superlattice nanobrush was precisely synthesized by PLD. Cross-sectional scanning transmission electron microscopy (top) and atom probe tomography (bottom) visualize its 1.4 m tall bristles. The chevron pattern comes from alternating stacks of nanometer-thick layers of CeO2 and Y2O3 forming atomically well- defined (111) interfaces. The scale bars correspond to 20 nm

Scientific Achievement: Researchers discovered a novel synthesis method to grow nanobrush architectures with interfaces designed to form high-density oxygen vacancies.

Significance and Impact: The rational design of interfacial oxide architectures to create, control, and transport oxygen vacancies could be applied to various energy and information technologies, such as solid oxide fuel cells and memristive devices.

DOI: 10.1038/s41467-020-15153-8

Related Researchers


Media Contacts