Double Schottky barrier model

Diagrams of electron depletion for oxide grains and the resistance of contact between grains, (a) Space charge layer model, (b) double Schottky barrier model, (c) regional and volume depletion model, (d) surface conductive grains contact model. 

The double Schottky barrier model (Fig. 1.4(b)) also turned out to be completely misleading. It focused attention on the electron transport path running through the centers of contacting grains. In reality, however, there... 

FIGURE 2.1.2 Band model of double Schottky barrier at grain boundary. 

Fig. 2.20 Double Schottky barrier in polycrystalline oxide layers (a) physical model (b) energy zone diagram (c) grain size influence on mechanism of polycrystalline MOX layer conductance. The filled and empty areas indicate high and low resistances, respectively [Idea from Yamazoe (1991) and Yamazoe and Miura (1992)]...

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