微波液相法快速制备铈铽共掺杂磷酸镧荧光纳米晶体

series of Ce, Tb co-doped lanthanum orthophosphate nanocrystals have been prepared within 10 min by a microwave-assisted method in liquid phase. X-ray diffraction, transmission electron microscope, Fourier transform infrared spectra are used to characterize the crystal phase composition, crystal structure and dissolubility. The excitation and emission spectrum of the nanocrystals have been given, and we have illustrated in detail the corresponding of various peaks to energy level transitions and their luminescence mechanism. The results show that the obtained nanocrystals are roughly rod-like particles with diameter of ~10 nm and length of ~150 nm. Furthermore, the nanocrystals are water-dispersable, and demonstrate bright green fluorescence under UV light excitation.