Multi-color luminescence evolution of SrGdAlO4:Ln3+ (Ln3+Â = Eu3+ and/or Tb3+) nanocrystalline phosphors via a sol-gel process

The luminescence color of SrGdAlO4:Ln3+ (Ln3+ = Eu3+ and/or Tb3+) nanocrystalline phosphors can be tuned from blue to blue-green, green, white, orange, etc. by varying the doping species, concentration, and relative ration of the codoping Eu3+/Tb3+ ions in SrGdAlO4 host lattice to some extent.243