Multicolor tunable upconversion nanophosphors under various excitation wavelengths and method of fabricating the same

摘要

The present invention is a hexagonal core / shell structure of the nano-phosphor doping the activator to the shell exhibits a strong visible light emission under 980 nm infrared as well as 800 nm infrared excitation, and a variety of colors from blue to yellow and yellow green through composition control Disclosed is a multi-wavelength excitation multicolor luminescent upconverting nanophosphor capable of emitting light.