Please use this identifier to cite or link to this item:
|Title:||Preparation and photoluminescence of thin films of Ge nanoparticles embedded in Al2O3 matrices|
|Authors:||Zhu, Y. |
|Source:||Zhu, Y., Ong, P.P. (2001-05-07). Preparation and photoluminescence of thin films of Ge nanoparticles embedded in Al2O3 matrices. Journal of Physics Condensed Matter 13 (18) : 4075-4080. ScholarBank@NUS Repository. https://doi.org/10.1088/0953-8984/13/18/315|
|Abstract:||Thin films of Ge/Al2O3 were prepared using the pulsed laser deposition method. XRD and AFM confirmed that the structure consists of Ge nanoparticles embedded in amorphous Al2O3 matrices. A blue PL from the films was found in the wavelength region of 400-550 nm with two distinct humps in the peak. The origin of the PL is attributed to localized Ge/O-related interfacial defects. Our results show evidence that the amorphous Al2O3 matrices encapsulating the Ge nanocrystals provided them with a compact and air-tight seal preventing atmospheric oxygen from diffusing into the surface of the Ge nanoparticles even when the film was annealed at a high temperature.|
|Source Title:||Journal of Physics Condensed Matter|
|Appears in Collections:||Staff Publications|
Show full item record
Files in This Item:
There are no files associated with this item.
checked on Mar 29, 2018
checked on Mar 9, 2018
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.