Environmental Engineering Reference
In-Depth Information
Chapter 6
Interface Stability of Polymer
and Small-Molecule Organic
Photovoltaics
Degradation Mechanisms, Characterization
Techniques, and Improvement Approaches
D. W. Zhao, L. Ke, W. Huang and X. W. Sun
Abstract In this chapter, the interface degradation mechanisms in organic
photovoltaics (OPVs) will be discussed. The interface instability is mainly ascri-
bed to the diffusion of oxygen and water into the electrode materials as well as the
interface modification layer between electrode and organic layer. Furthermore, the
commonly used characterization techniques are presented, which are quite helpful
to understand the origin of the interface instability and their level of impact. In
particular, these techniques reveal optical and electrical changes at the interface.
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