Scintillation and optical properties of YAG:Ce films grown by liquid phase epitaxy

Liquid phase epitaxy method was used to prepare YAG:Ce and YAG films (thickness 2–25μm) from the fluxes based either on PbO or BaO. 4f→5d4f→5d bands of Ce3+Ce3+ ions were observed peaking at 340 and 457 nm. A hybrid photomultiplier was used to measure scintillation response of the LPE films using 239Pu alpha particle source. Some of YAG:Ce films show photoelectron yield close to that of YAG:Ce single crystal. Iron contamination degrades significantly the film scintillation performance.