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Terbium–europium Tb-Eu/acetylacetone(acac)/poly(acrylamide) (PAM) co-luminescence composite nanoparticles were successfully prepared using the ultrasonic approach. The as-prepared composite nanoparticles show the characteristic emission spectra of Tb 3+ , located at 496 and 549nm. Furthermore, the nanoparticles are water soluble, stable and have extremely narrow emission bands and high internal...
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