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|Title:||Structural and optical properties of Ge nanocrystals embedded in Al2O3|
Rolo, Anabela G.
Finstad, T. G.
Gomes, M. J. M.
High resolution transmission electron microscopy (HRTEM)
|Publisher:||American Scientific Publishers|
|Journal:||Journal of Nanoscience and Nanotechnology|
|Abstract(s):||Ge nanocrystals (NCs) embedded in aluminum oxide were grown by RF-magnetron sputtering. Raman, high resolution transmission electron microscopy (HRTEM), selected area diffraction (SAD), and X-ray diffraction (XRD) techniques confirmed good cristallinity of the NCs from samples annealed at 800 °C. The average NC size was estimated to be around 7 nm. Photoluminescence (PL) measurements show an emission related to the NCs. The temperature dependence of the PL confirms the confinement phenomenon in the Ge NCs.|
|Description:||The authors are grateful to Prof. R. Correia (Univ. de Aveiro) for help in performing the Raman experimental work. Accepted version (9 January 2007)|
|Access:||Restricted access (UMinho)|
|Appears in Collections:||CDF - FMNC - Artigos/Papers (with refereeing)|
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