Colour centre recovery in yttria-stabilised zirconia: photo-induced versus thermal processes

Abstract

The photo-annealing of colour centres in yttria-stabilized zirconia (YSZ) was studied by electron paramagnetic resonance spectroscopy upon UV-ray or laser light illumination, and compared to thermal annealing. Stable hole centres (HCs) were produced in as-grown YSZ single crystals by UV-ray irradiation at room temperature. The numbers of HCs decays to

On-line optical absorption of electron-irradiated yttria-stabilized zirconia

“…The T-center is also formed by single excitations for UV-ray or X-ray irradiations [14][15][16][17][18]. Photo-bleaching and thermal annealing was also studied for those two color centers [20,21]. Minor paramagnetic hole centers (OO . )…”