Band filling and depletion through the doping of polyaniline thin films

作者: B. Xu , Jaewu Choi , A. N. Caruso , P. A. Dowben

DOI: 10.1063/1.1484247

关键词: PhotochemistryDopingMaterials sciencePolyanilineValence (chemistry)Binding energyChemical physicsFermi levelMolecular orbitalDelocalized electronAcceptor

摘要: The position of the molecular orbitals polyaniline, relative to Fermi level, shifts with doping polyaniline by both charge donor and acceptor species. Sodium as an electron donor, when added system, results in increase population bands but a decrease density states near EF. This is evident from consistent toward greater binding energy occupied well unoccupied orbitals, valence conduction band edges characteristic core levels. In case iodine doping, acceptor, all were shifted smaller energy. These provide compelling evidence that vapor deposited thin films are delocalized.

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