Structural, Optical, and Luminescent Properties of ZnO:Ga and ZnO:In Ceramics

Zinc oxide optical ceramics were prepared by the hot uniaxial pressing technique. Nominally undoped and gallium- and indium-doped ceramics were studied. Undoped ceramics with a thickness of 0.5 mm had a total transmittance of about 65% in the visible range and exhibited mainly deep level luminescence at 600 nm. Doping of the ceramics resulted in the appearance of free charge carriers, suppression ...