Highly-crystalline and uniform morphology sm(TTA)₃Phen via microwave-ultrasound

Highly crystallized Sm(TTA)₃ Phen with small size and uniform morphology was prepared by a rapid and efficient microwave-ultrasound technology. Frontier FT-IR/FIR spectrometer (FT-IR), X-ray diffraction (XRD), field emission scanning electron microscopy (FSEM), and photoluminescence (PL) spectra were employed to characterize the samples. The relationships among reaction time, relative crystallinity, particle morphology and fluorescence properties were discussed. The results indicate that the highly crystalline Sm(TTA)₃ Phen can be successfully synthesized by microwave-ultrasound method. The optimum reaction time is 4 h for typical triclinic crystal powder with size of 5 μm, which has 72% highly-crystalline and good luminescence property. When the samples were tested after 90 d, the fluorescence decayed. The higher the crystallinity is, the less fluorescence decreases.