title: Effective photoluminescence in a large-area array of Ta2O5 nanodots.
abstract: 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.
authors: Department of Physics, National Dong Hwa University, Hualien-97401, Taiwan, China.
authors: Rupesh S
authors: RS
authors: Devan
authors: Ching-Ling
authors: CL
authors: Lin
authors: Jin-Han
authors: JH
authors: Lin
authors: Teng-Kai
authors: TK
authors: Wen
authors: Ranjit A
authors: RA
authors: Patil
authors: Yuan-Ron
authors: YR
authors: Ma