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In this work, the fluorescein isothiocyanate (FITC) and rhodamine B (RhB) dyes were encapsulated in mesoporous silica nanoparticles (MSNp). The MSNp-FITC-RhB nanohybrids phosphor showed a dichromatic PL emission at green region and orange region when excited at 460 nm. A Forster Resonance Energy Transfer (FRET) was observed from FITC to RhB. The materials were further characterized by XRD, FTIR, TEM,...
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