http://www.cnr.it/ontology/cnr/individuo/prodotto/ID52339
Ab initio Theoretical Investigation of Phthalocyanine-Semiconductor Hybrid Systems (Articolo in rivista)
- Type
- Label
- Ab initio Theoretical Investigation of Phthalocyanine-Semiconductor Hybrid Systems (Articolo in rivista) (literal)
- Anno
- 2009-01-01T00:00:00+01:00 (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
- 10.1021/cm9014755 (literal)
- Alternative label
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
- Mattioli G. (1,2); Filippone F. (1); Giannozzi P. (3); Caminiti R. (2); Amore Bonapasta A. (1) (literal)
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- Pagina fine
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- Rivista
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#note
- http://dx.doi.org/10.1021/cm9014755 (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#pagineTotali
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroFascicolo
- Note
- ISI Web of Science (WOS) (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
- 1) Istituto di Struttura della Materia Italy (ISM) del Consiglio Nazionale delle Ricerche, Via Salaria Km 29.5, CP
10, 00016 Monterotondo Stazione, Italy;
2) Dept. of Chemistry, Università di Roma \"La Sapienza\", Italy;
3) CNR-INFM DEMOCRITOS National Simulation Center, and Dept. of Physics, University of Udine, Italy; (literal)
- Titolo
- Ab initio Theoretical Investigation of Phthalocyanine-Semiconductor Hybrid Systems (literal)
- Abstract
- In the present study, an extensive investigation of the molecule-surface interaction in hybrid systems formed by phthalocyanines (Pcs) and inorganic semiconductors (IS) has been performed by using ab initio theoretical methods. The aim of this study is to provide a framework to design effectively coupled Pcs/IS systems, assumed here to be characterized by the formation of chemical bonds between the two components and by a molecule-surface charge-transfer involving the pi-electron clouds responsible of the Pc optical and transport properties. The achieved results strengthen a crucial point for designing coupled Pc/IS structures, that is, the occurrence of a universal alignment of the Pc electronic levels with respect to the semiconductor band structure, previously suggested only on the ground of a limited set of results. Present results also confirm that an effective organic-inorganic coupling can be achieved through a careful choice of the Pc-substrate system and the semiconductor doping. In this regard, they trace also novel routes for designing hybrid Pc/IS systems by showing that the degrees of freedom for reaching an effective coupling can be increased by modifying the molecular architecture. Finally, present results predict that X-ray photoelectron spectroscopy (XPS) measurements can give an experimental evidence of molecule-surface charge-transfer processes occurring in coupled Pc/IS systems. (literal)
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