Formation, photoluminescence and charge storage characteristics of Au nanocrystals embedded in amorphous Al2O3 matrix
Yuan, C. L.
Lee, Pooi See
Ye, S. L.
Date of Issue2007
School of Materials Science and Engineering
A method to fabricate Au nanocrystals embedded in amorphous Al2O3 matrix has been developed. The formation of spherically shaped Au nanocrystals has been observed using high-resolution transmission electron microscopy (HRTEM). The Au nanocrystals size distribution is narrow and the average diameters are approximately 5 nm. The photoluminescence and charge storage characteristics of Au nanocrystals embedded in amorphous Al2O3 matrix were investigated. A relatively intense visible photoluminescence was exhibited in the small Au nanocrystals. Good performances in terms of large memory window were also observed.
Europhysics letters (EPL)
© 2007 EPLA.