Formation, photoluminescence and charge storage characteristics of Au nanocrystals embedded in amorphous Al2O3 matrix

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...

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Bibliographic Details
Main Authors: Yuan, C. L., Ye, S. L., Lee, Pooi See
Other Authors: School of Materials Science & Engineering
Format: Journal Article
Published: 2013
Subjects:
Online Access:https://hdl.handle.net/10356/97349
http://hdl.handle.net/10220/10482
Description
Summary: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.