Influence of the Monomer Size on the Electronic Structure of Thiophene-Like Polymers
Recently, it has been predicted theoretically and observed experimentally that doping polythiophene to high levels can lead to a metallic-like material. In this work, we investigate the electronic structure of polythiophene and related fused-ring systems by X-ray photoelectron spectroscopy (XPS), looking for the consequences of the gap closure on the core level lineshapes. Valence band spectra of polymers prepared from thiophene and bithiophene are compared.
KeywordsPoly Thiophene Neutral Polymer Valence Band Spectrum Monomer Size Conduct Glass Substrate
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