Volume 80, Number 6, December 2007
|Number of page(s)||4|
|Section||Condensed Matter: Electronic Structure, Electrical, Magnetic and Optical Properties|
|Published online||06 November 2007|
Formation, photoluminescence and charge storage characteristics of Au nanocrystals embedded in amorphous Al2O3 matrix
Department of Physics, Jiangxi Normal University - Nanchang 330022, Jiangxi, PRC
2 School of Materials Science and Engineering, Nanyang Technological University - Nanyang Avenue, 639798 Singapore
3 Institute of Microelectronics of Tsinghua University - Beijing 100084, PRC
Corresponding author: email@example.com
Accepted: 15 October 2007
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.
PACS: 77.55.+f – Dielectric thin films / 78.67.Bf – Nanocrystals and nanoparticles / 78.55.-m – Photoluminescence, properties and materials
© Europhysics Letters Association, 2007
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