摘要:
An infrared-to-visible up-conversion material which can be applied to an infrared light identification element having a useful conversion efficiency and sensitivity for infrared light in the wavelengths of the 1.5 µm band, 0.98 µm band and 0.8 µm band without necessity for previous excitation, comprises an inorganic material comprising at least two elements of erbium (Er) and a halogen or compounds thereof.
摘要:
An infrared light-excited light-emitting substance given by the general formula: Rl x R2 (1-x) Ba z Cl 3+2z where R1 is a rare-earth element, x satisfies the relation 0.01