Charge Storage States in Conjugated Polymers

Some photoelectron spectroscopy studies of /rani -polyacetylene in the pristine [28, 46], p-type doped [47-52] and -type doped [52] forms, can be found in the literature. Although no new well defined structure is detected upon doping, which would correspond to doping induced soliton levels, the density of states 

F re 5-8. UPS valence band spectra of doped trans -polyacetylene for K-doped, neutral, and CIO4-doped systems, from top to bottom (adapted from Ref. [52]). 

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