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Covalently linked molecular networks on metal-passivated surfaces
Slezák, Peter ; Kocán, Pavel (advisor) ; Matvija, Peter (referee)
The creation of electronic devices only from atoms or molecules could be the next step in the creation of more advanced nanotechnologies. Initial experiments have already taken place and we know that it is possible on some surfaces. In this work, we tried to create similar simple molecular structures on surfaces with a silicon substrate. We initially modified the substrate by depositing Bismuth, Indium and a combination of both. We optimized the methods of formation of these surfaces and subsequently created simple structures with the help of deposited Dithienyl- dithiopyrolopyrrole molecules, while we successfully managed to create the intended structures on several surfaces and arranged groupings of molecules on the surfaces Si(111)/In √3 x√7, Si(111)/Bi(√3 x√3) and on Si(111)/Bi-In(√7 x√7). We subsequently created a model of interaction molecules inthis structures on substrate
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Preparation of the Si(110)-Tl surface for deposition of organic molecules
Slezák, Peter ; Kocán, Pavel (advisor) ; Zimmermann, Petr (referee)
This bachelor thesis deals with the formation of an anisotropic surface Si (110) -Tl, which will serve as a substrate for the deposition of organic molecules of copper phthalocyanines. The aim was to identify relevant preparation parameters and optimize the producting process of surface Si (110) with the reconstruction (16x2), to find the best parameters for deposition of thallium on this surface so as to produce a surface Si (110) -Tl with reconstruction (1x1) and test the suitability of this surface as a substrate for further deposition of organic molecules. In the course of the work, the apparatus used for measurements is described, the individual measurement procedures and the physical principles associated with STM operation are also described.
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Preparation of the Si(110)-Tl surface for deposition of organic molecules
Slezák, Peter ; Kocán, Pavel (advisor) ; Zimmermann, Petr (referee)
This bachelor thesis deals with the formation of an anisotropic surface Si (110) -Tl, which will serve as a substrate for the deposition of organic molecules of copper phthalocyanines. The aim was to identify relevant preparation parameters and optimize the producting process of surface Si (110) with the reconstruction (16x2), to find the best parameters for deposition of thallium on this surface so as to produce a surface Si (110) -Tl with reconstruction (1x1) and test the suitability of this surface as a substrate for further deposition of organic molecules. In the course of the work, the apparatus used for measurements is described, the individual measurement procedures and the physical principles associated with STM operation are also described.
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