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HRTEM images of (a) C, (b) CE, (c) CE-500, and (d) CE-900.
(a) XRD spectra of nanoparticles. (b) Representative Ce and Eu (inset) level XPS spectra of CE. (c) Raman and (d) IR spectra of nanoparticles.
Emission spectra of nanoparticles excited at 466 (a) and (b). The inset shows excitation spectra .
Size, strain and concentration for nanoparticles.
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