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(a) curve taken on the pentacene single layer. (b) Upper panel: STM image (, ) of the ordered molecular arrays. Lower panel: constant current profiles corresponding to the vectors along (black arrow and profile) and perpendicular to (grey arrow and profile) the pentacene arrays.
(a) UPS data in the HOMO energy region for the interface and for a pentacene thin film. (b) STS data on the single pentacene layer deposited on the Cu(119) surface. (c) UPS data from gas-phase pentacene molecules.
Energy level diagram: clean Cu(119) surface (left), interface (middle), and gas-phase pentacene (right).
(a) Hole injection barrier as a function of the substrate work function (black symbols), compared with data from the literature (open symbols). (b) Interface dipole as a function of the substrate work function (black symbols), compared with data from the literature (open symbols).
Work function change , ionization potential energy (IPE), hole and electron injection barriers, and transport gap deduced in the present work for the and the interfaces, in comparison with previous data. All energy values are given in eV.
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