Ultra-thin organic films must be screened when deposited onto freshly prepared metal surfaces in view of preserving the molecular physical-chemical properties. A current promising strategy prescribes the oxidation of the substrate and, when possible, the creation of a single oxide layer. This strategy was successfully exploited with metal-tetra-phenyl porphyrins (M-TPP) on Fe(0 0 1)-p(1 × 1)O. Here, our study is extended to the oxidized Cu(1 1 0)-(2 × 1)O. Having free coordination sites, the Co-TPP is perturbed when deposited onto the freshly prepared copper surface and the HOMO-LUMO levels quenched, as reported in the literature. Here, we prove that the oxide copper surface reduces the molecule-substrate interaction and photoemission spectroscopy is able to reveal the characteristic electronic features of the molecules.
Persistence of the Co-tetra-phenyl-porphyrin HOMO-LUMO features when a single organic layer is grown onto Cu(1 1 0)-(2 × 1)O / Bussetti, G.; Albani, G.; Calloni, A.; Sangarashettyhalli Jagadeesh, M.; Goletti, C.; Duo, L.; Ciccacci, F.. - In: APPLIED SURFACE SCIENCE. - ISSN 0169-4332. - 514:(2020), p. 145891. [10.1016/j.apsusc.2020.145891]
Persistence of the Co-tetra-phenyl-porphyrin HOMO-LUMO features when a single organic layer is grown onto Cu(1 1 0)-(2 × 1)O
Sangarashettyhalli Jagadeesh M.
;
2020
Abstract
Ultra-thin organic films must be screened when deposited onto freshly prepared metal surfaces in view of preserving the molecular physical-chemical properties. A current promising strategy prescribes the oxidation of the substrate and, when possible, the creation of a single oxide layer. This strategy was successfully exploited with metal-tetra-phenyl porphyrins (M-TPP) on Fe(0 0 1)-p(1 × 1)O. Here, our study is extended to the oxidized Cu(1 1 0)-(2 × 1)O. Having free coordination sites, the Co-TPP is perturbed when deposited onto the freshly prepared copper surface and the HOMO-LUMO levels quenched, as reported in the literature. Here, we prove that the oxide copper surface reduces the molecule-substrate interaction and photoemission spectroscopy is able to reveal the characteristic electronic features of the molecules.File | Dimensione | Formato | |
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