Influence of substrate doping on the surface chemistry and morphology of Copper Phthalocyanine ultra thin films on Si (111) substrates

Charge transfer quantification in a SnOx/CuPc semiconductor heterostructure: investigation of buried interface energy structure by photoelectron spectroscopies

“…56 Again, the most severe shift is located in the proximity of the organic surface. Our studies on thicker CuPc layers showed that the environment-related shift should not exceed 0.20 eV, 57 hence we conclude that the overall energy level shift is the result of overlapping interfacial and surface-related effects. The signal related to N 1s is clearly more shifted than the C 1s related one, which suggests that nitrogen is more susceptible for charge transfer effects.…”

Study of metal specific interaction, F-LUMO and VL shift to understand interface of CuPc thin films and noble metal surfaces

“…Among various low weight organic semiconductors (OSc), copper (II) phthalocyanine (CuPc) has interesting opto-electronic properties, high thermal and chemical stability together with tendency of growing in ordered phases, making it a suitable candidate for organic thin film devices [4][5][6][7][8][9]. Due to D4h symmetry of the CuPc molecule there is no electrostatic dipole or quadrupole moments which would mask intermolecular interactions induced by the substrate [10].…”

Interface doping of conjugated organic films by means of diffusion of atomic components from the surfaces of semiconductors and of metal oxides

“…It was shown that organic film interfaces with relatively inert substrates such as Au are characterized by a sharp shift of the surface potential within 0.5-1 nm of the film layer [3][4][5]. On the other hand, a relatively reactive semiconductor substrate might affect the electronic structure of the organic overlayer within a few nanometer [6,7]. The modification of the interfacial layer could be observed as appearance of additional peaks in the spectrum of the electronic structure of the organic film [8][9][10].…”