Molecules deposition on highly reactive surfaces: The case study of porphyrins on Fe(001)

Albani, G. (2022) Molecules deposition on highly reactive surfaces: The case study of porphyrins on Fe(001). Il nuovo cimento C, 45 (6). pp. 1-4. ISSN 1826-9885

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Abstract

The choice of low-interacting substrates to support a molecular layer is extremely relevant for the realization of working devices, especially when molecules with an open structure, such as metal tetraphenylporphyrins (MTPP), are used. Conversely, in the present work, I employ a prototypical highly reactive substrate (such as Fe(001)) to weight its influence on the structural and electronic properties of deposited molecules. To this goal, I have exploited photoemission spectroscopy (XPS and UPS, porphyrin core and valence states properties), NearEdge X-ray Absorption Fine Structure spectroscopy (NEXAFS, molecule orientation with respect to the buried substrate) and scanning tunneling microscopy (STM, MTPP assembling properties) on three different MTPP molecules (namely, ZnTPP, CoTPP and VOTPP). While Zn- and CoTPP shows basically a planar configuration, VOTPP has the oxygen atom placed outside the main tetra-pyrrole ring, which can influence the molecules assembling on clean substrates

Item Type:	Article
Subjects:	500 Scienze naturali e Matematica > 530 Fisica
Depositing User:	Marina Spanti
Date Deposited:	06 Sep 2022 13:05
Last Modified:	06 Sep 2022 13:05
URI:	http://eprints.bice.rm.cnr.it/id/eprint/22046

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