Overshoot in photocurrent rise curve for TiO2 doped with Zn2+
Abstract
A long duration of the overshoot of photocurrent was observed for TiO2 doped with Zn2+; the extent of the overshoot decreased on successive irradiation in vacuo or in the presence of oxygen, while it kept constant in the presence of hydrogen, indicating that the photo-desorption of hydrogen is responsible for the overshoot.