Terbium-doped zinc oxide films deposited by spray pyrolysis

Zinc oxide films, both intrinsic and doped with TbCl 3 , have been prepared by spray pyrolysis at atmospheric pressure, using air as the carrier gas. Photoluminescence (PL) studies show differing spectra from intrinsic films and from doped films with 10 atomic per cent of TbCl 3 in the spraying solution. The PL spectra from intrinsic films show a peak at approximately 510 nm, while those from the doped films show a peak at approximately 550 nm.