This PhD thesis is focused on the study of a critical topic in material science, i.e. the full comprehension of the processes occurring at the interface between organic/inorganic materials, and among them. An innovative experimental approach is here proposed: the Supersonic Molecular Beam Deposition (SuMBD), a technique that exploits the great potentiality of a supersonic molecular flux, the kinetic activation of surface processes. It gives an excellent control of beam properties (Kinetic energy and momentum) that in turn leads to the possibility to control surface and interface properties during the film growth and/or synthesis. For this purpose, three different test case have been analyzed: i) SuMBD ability to control electronic properties in organic films and their correlation with the OFET electronics; ii) the synthesis of carbon based nanostructured materials, such as graphene, by using supersonic fullerene on copper, studying the ability to induce the cage rupture exploiting the mentioned kinetic activation; iii) the functionalization of SiO2 based surfaces by porphyrin partially fluorinated (H2TPP(F)), in particular SiC/SiO2 core-shell nanowires, for applications in biomedical field, and Si(100)/SiO2 planar surface for comparison.
Tailoring surfaces and interface properties by kinetically activated processes controlled by Supersonic Beam Deposition / Tatti, R.. - (2015 Mar 06).
Tailoring surfaces and interface properties by kinetically activated processes controlled by Supersonic Beam Deposition
TATTI, ROBERTA
2015-03-06
Abstract
This PhD thesis is focused on the study of a critical topic in material science, i.e. the full comprehension of the processes occurring at the interface between organic/inorganic materials, and among them. An innovative experimental approach is here proposed: the Supersonic Molecular Beam Deposition (SuMBD), a technique that exploits the great potentiality of a supersonic molecular flux, the kinetic activation of surface processes. It gives an excellent control of beam properties (Kinetic energy and momentum) that in turn leads to the possibility to control surface and interface properties during the film growth and/or synthesis. For this purpose, three different test case have been analyzed: i) SuMBD ability to control electronic properties in organic films and their correlation with the OFET electronics; ii) the synthesis of carbon based nanostructured materials, such as graphene, by using supersonic fullerene on copper, studying the ability to induce the cage rupture exploiting the mentioned kinetic activation; iii) the functionalization of SiO2 based surfaces by porphyrin partially fluorinated (H2TPP(F)), in particular SiC/SiO2 core-shell nanowires, for applications in biomedical field, and Si(100)/SiO2 planar surface for comparison.| File | Dimensione | Formato | |
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