Abstract:

ZnB₂O₄ ∶Eu³⁺,Yb³⁺ nearinfrared(NIR) lightemitting materials were prepared with a hightemperature solidstate method. The condition of preparation and the effects of Eu³⁺ and Yb³⁺ on lightemitting properties were studied by X-ray diffraction (XRD) and fluorescence spectroscopy, and the influences of reaction time and the doping concentration of Eu³⁺ and Yb^3+ on the emission intensities were also  investigated. The results show that the NIR lightemitting of ZnB₂O₄ ∶Eu³⁺,Yb^3+ was achieved by the energy transfer from Eu³⁺ to Yb³⁺.

Key words: nearinfrared lightemitting, ZnB2O4 ∶[KG-*3]Eu3+, doping