Solid state spectroelectrochemistry of redox reactions in polypyrrole/oxide molecular heterojunctions.


To understand the mechanism of bias-induced resistance switching observed in polypyrrole (PPy) based solid state junctions, in situ UV-vis absorption spectroscopy was employed to monitor oxidation states within PPy layers in solution and in PPy/metal oxide junctions. For PPy layers in acetonitrile, oxidation led primarily to cationic polaron formation… (More)
DOI: 10.1021/ac2032047


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