Oxide phosphor and dielectric thin films for electroluminescent devices

Since its inception in the early 1990s, the field of high brightness, high stability oxide phosphor electroluminescence (OPEL) continues to develop with efforts now underway in several groups around the world. Green-emitting phosphors Zn2SiO4:Mn, Zn2Si1−xGexO4:Mn and ZnGa2O4:Mn achieve efficiencies of 0.5–2.5 lm/W. Lifetimes of 50000 h in air are achieved, even without control of humidity. Red emission from Ga2O3:Eu and MgGa2O4:Eu has also been …