Effective photoluminescence in a large-area array of Ta2O5 nanodots

We describe here the synthesis of a large-area Ta2O5 nanodot array by utilizing the hot filament metal vapor deposition technique. The Ta2O5 nanodots arranged in a large-area array on a Si wafer had an average diameter of -8 nm. X-ray photoemission spectroscopy (XPS) revealed the stoichiometric Ta a...

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Published inJournal of nanoscience and nanotechnology Vol. 13; no. 2; p. 1001
Main Authors Devan, Rupesh S, Lin, Ching-Ling, Lin, Jin-Han, Wen, Teng-Kai, Patil, Ranjit A, Ma, Yuan-Ron
Format Journal Article
LanguageEnglish
Published United States 01.02.2013
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Summary:We describe here the synthesis of a large-area Ta2O5 nanodot array by utilizing the hot filament metal vapor deposition technique. The Ta2O5 nanodots arranged in a large-area array on a Si wafer had an average diameter of -8 nm. X-ray photoemission spectroscopy (XPS) revealed the stoichiometric Ta and O compositions of the Ta2O5 nanodots. Raman spectroscopy showed the Ta2O5 nanodots to be of orthorhombic (beta) crystal. Photoluminescence (PL) spectroscopy showed the green and red light emissions of the beta-Ta2O5 nanodots at room temperature.
ISSN:1533-4880
1533-4899
DOI:10.1166/jnn.2013.6088