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Functional organic-inorganic nanostructures
Kelíšek, Petr ; Zmeškal, Oldřich (referee) ; Čech, Vladimír (advisor)
Diploma thesis deals with preparation of multilayered organic-inorganic nanostructures via PECVD technology and analysis of optical properties of these layers by spectroscopic ellipsometry. The theoretical part handles the definition of thin layers, layered and gradient nanostructures, plasma enhanced chemical vapor deposition and principles of spectroscopic ellipsometry. In the experimental part, used materials and chemicals are described, afterwards follow a complete description of the apparatus used for sample preparation and a description of the sample preparation procedure. The results part consists of methodology of preparing material models necessary for ellipsometric measurements and evaluation of optical properties of deposited nanolayers.
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Dynamic change in optical response of nanostructures
Vančík, Michal ; Veis, Martin (advisor) ; Zázvorka, Jakub (referee)
Title: Dynamic change in optical response of nanostructures Author: Michal Vančík Institute: Institute of Physics of Charles University Supervisor: RNDr. Martin Veis, Ph.D., Institute of Physics of Charles University Abstract: At the present time, properties of thin layers and multilayered nanos- tructures are intensively reseacrched. Because of different properties than bulk materials, thin layers have found application in various fields and play a key role in many technologies. Nanostructures containing GdOxare intensively studied since their properties can be modified by voltage application. It is assumed, that this change is caused by migration of ions in the structure. This thesis conducts re- search on multilayered structures, whose optical response changes reversibly by applying voltage. In these samples, the change is likely caused by migration of hydrogen ions into the GdOx layer. The goal of this thesis is to describe the opti- cal properties of individual layers of the structure and to describe the dynamic change in optical properties. The measurements were conducted with the help of spectroscopic ellipsometry, which allowed in situ voltage application. Keywords: spectroscopic ellipsometry, gadolinium oxide, multilayered nanostruc- tures, in situ
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Functional organic-inorganic nanostructures
Kelíšek, Petr ; Zmeškal, Oldřich (referee) ; Čech, Vladimír (advisor)
Diploma thesis deals with preparation of multilayered organic-inorganic nanostructures via PECVD technology and analysis of optical properties of these layers by spectroscopic ellipsometry. The theoretical part handles the definition of thin layers, layered and gradient nanostructures, plasma enhanced chemical vapor deposition and principles of spectroscopic ellipsometry. In the experimental part, used materials and chemicals are described, afterwards follow a complete description of the apparatus used for sample preparation and a description of the sample preparation procedure. The results part consists of methodology of preparing material models necessary for ellipsometric measurements and evaluation of optical properties of deposited nanolayers.
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