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(Color online) Emission spectra of thin-film phosphors annealed at for various concentrations under excitation at . The inset shows actual photographs of a pure film and a Li-doped film under illumination at .
Plots of the FWHM of the (222) peaks of the cubic phase and of the crystallite size of the films as functions of the concentration.
Top and cross-sectional SEM views of the thin-film phosphors after annealing at for various concentrations: [(a) and (d)] , [(b) and (e)] , and [(c) and (f)] .
(Color online) Plots of the rms roughness and grain size of the films as functions of the concentration. Inset: AFM stereo images of the films.
Contributions to the enhanced photoluminescence brightness of the Li-doped thin-film phosphors.
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