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(Color online) UPS spectra of polymer samples prepared by spin coating and by peeling procedures . For each pair, the upper curve corresponds to the spin-coated film and the bottom to the peeled film. The spectra are aligned to the vacuum level.
(Color online) Summarized results of the positions of the secondary electron cutoff expressed in terms of measured work function at investigated interfaces: the vapor-deposited gold on polymer, Au/polymer (full markers) and spin-coated polymer on gold, and polymer/Au, (empty markers). For the sake of clarity, the polymer/Au points are artificially shifted on the IP scale.
(Color online) Schematic representation of the energy level alignment at the interfaces of vapor-deposited gold and polymers.
The conjugated polymers studied and their typical IPs as recorded by ultraviolet photoelectron spectroscopy, UPS.
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