Schottky-Mott model metal/organic interfaces

Fig. 5.3 Electronic structures of metal and organic when the metal and organic are (a) separated (b) under contact obeying Schottky-Mott model (c) under contact obeying the If aligned approach. The electronic structures of metal/polymer interface are shown in (d).

The interface between the quasi-metal PEDOT PSS and organic semiconductors has been investigated in numerous experiments. As illustrated in Figure 14.16, the energy barrier for hole injection (AE) is not simply determined by the difference between the PEDOT PSS work function (4>) and the ionization potential (/ ) of the semiconductor as predicted by the Schottky-Mott model dipole layer formation at the interface will lead to a vacuum level shift A [158-161]. 

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