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Master's Thesis
Author of thesis: Ing. Anna Kurowská
Acad. year: 2022/2023
Supervisor: Dr. Matthias Blatnik
Reviewer: dr. Bruno de la Torre
Molecular self-assembly is a spontaneous association of molecules into well-defined supra-molecular structures on surfaces. Organic molecules exhibiting self-assembly can act as building blocks at the nanoscale and allow for a bottom-up synthesis of atomically precise arrangements, e.g., two-dimensional (2D) nanoarrays. The incorporation of metal atoms leads to the formation of a 2D metal-organic framework (2D MOF). Therein, embedded (magnetic) metal atoms are arranged in a periodic way, linked by organic linker units. At the surface of a material, this holds powerful opportunities, e.g., to change the electronic properties of a material or enable the usage of exotic new states of matter in device technology. This thesis studies assembled structures of carbonitrile molecules and transitional metal atoms on coinage metal and topological insulator surfaces. The molecules HATCN and DCA are tested as suitable candidates for organic linker units. We present especially LEEM and STM results for molecular self-assembly on both types of surfaces and for the metal-organic structure formation on coinage metals. In particular, the DCA molecules show high potential as a linker. We successfully formed a long-range ordered MOF with Fe atoms on the Ag(111) surface and a molecular self-assembly was observed for DCA deposited on Bi2Se3.
Self-assembly, metal-organic frameworks (MOFs), long-range order, HATCN, DCA, Fe, Ag(111), Bi2Se3, diffraction, STM, LEEM, XPS
Date of defence
20.06.2023
Result of the defence
Defended (thesis was successfully defended)
Grading
A
Process of defence
Po otázkách oponenta bylo dále diskutováno: Jaké "nečistoty" plánujete používat pro získání magnetických vlastností. STM měření vzorku, vznik signálu. Studentka na otázky odpověděla s přehledem.
Language of thesis
English
Faculty
Fakulta strojního inženýrství
Department
Institute of Physical Engineering
Study programme
Physical Engineering and Nanotechnology (N-FIN-P)
Composition of Committee
prof. RNDr. Tomáš Šikola, CSc. (předseda) prof. RNDr. Jiří Spousta, Ph.D. (místopředseda) prof. Mgr. Dominik Munzar, Dr. (člen) doc. Mgr. Adam Dubroka, Ph.D. (člen) prof. RNDr. Petr Dub, CSc. (člen) prof. RNDr. Bohumila Lencová, CSc. (člen) prof. RNDr. Jiří Petráček, Dr. (člen) prof. RNDr. Radim Chmelík, Ph.D. (člen) doc. Ing. Radek Kalousek, Ph.D. (člen) prof. Ing. Miroslav Kolíbal, Ph.D. (člen) doc. Ing. Stanislav Průša, Ph.D. (člen) RNDr. Antonín Fejfar, CSc. (člen)
Supervisor’s reportDr. Matthias Blatnik
Grade proposed by supervisor: A
Reviewer’s reportdr. Bruno de la Torre
Grade proposed by reviewer: A
Responsibility: Mgr. et Mgr. Hana Odstrčilová