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

- F-LUMO, a hybridized state near EF confirms partial charge transfer.
- Non-significant role of partial charge transfer in VL shift over push back effect.
- Pyrrole sites affected for partial charge transfer from Cu and Ag substrates.
- Negligible effect on pyrrole cites for Pt and Au substrates.