Research on Particle Size and Luminescence Properties of GdBaB9O16: Eu3+Phosphor Prepared by Sol-Gel Method

Gd0.6BaB9O16: Eu3+0.4 red phosphors were prepared by sol-gel technique. The different polyethylene glycols (PEGs) were added to control the particle size ofGd0.6BaB9O16: Eu3+0.4. The particle distribution and the relationship between the particle size and the luminescence properties of the phosphors were investigated. PEGs have no influence on the structure ofGd0.6BaB9O16: Eu3+0.4, but the particle size is changed with different molecular weight of PEGs. And the relative intensity of excitation peak and emission peak ofGd0.6BaB9O16: Eu3+0.4phosphor are reduced by adding PEG, due to the particle size effects.