Figure 2

Effects of different p-type oxide semiconductor characteristics on the performance of a CoOx/IGZO/CoOx selector.
(a) Hall carrier concentration, resistivity and optical band gap of CoOx thin films as a function of O2 flow rate. (b) I-V responses of several p-n-p selectors consisting of various CoOx layers at a fixed IGZO layer. (c) Double-logarithmic scale plot taken at positive bias.