Research Article
Optical Properties of Afterglow Nanoparticles : , Capped with Polyethylene Glycol
Figure 2
Optical properties of Sr2MgSi2O7: Eu2+, Dy3+. (a) Photoluminescence spectrum (excitation wavelength: 276 nm). (b) Photoluminescence excitation spectrum (emission wavelength: 466 nm).