In:
Nano, World Scientific Pub Co Pte Ltd, Vol. 06, No. 01 ( 2011-02), p. 93-99
Kurzfassung:
We report the preparation and thermal annealing of SnO 2 -core/ TiO 2 -shell nanorods using a two-step process comprising the thermal evaporation of Sn powders and the sputter-deposition of TiO 2 . X-ray diffraction analysis revealed that the shells were crystallized by annealing. Photoluminescence measurements showed that the major yellow emission of the SnO 2 nanorods was enhanced in intensity by sheathing them with TiO 2 and was further enhanced by annealing. A reducing atmosphere was found to be more efficient in enhancing the yellow emission by annealing than an oxidative atmosphere. The origin of the emission enhancement by coating and annealing is also discussed.
Materialart:
Online-Ressource
ISSN:
1793-2920
,
1793-7094
DOI:
10.1142/S179329201100238X
Sprache:
Englisch
Verlag:
World Scientific Pub Co Pte Ltd
Publikationsdatum:
2011