Obor: Materials

Photoswitches – graphene functionalization using chiral organic molecules

In the current project, we are particularly interested in the covalent attachment of small organic molecules to 2D materials[i] and the linking of the latter via the former. While in most of our projects, the organic molecules used for surface modification are commercially available or readily available from such, some projects require more extensive synthetic efforts.…

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Luminiscenční materiály pro víceúčelové aplikace. Jak na vylepšeni vlastnosti

Práce bude zaměřena na studium a charakterizaci defektních stavů a luminiscenčních center, jak vnitřních tak i přidaných jako dopanty, v moderních optických materiálech pro víceúčelové aplikace včetně světelných diod a „time-of-flight positron emission tomography“ z tříd oxidů a halogenidů (např. ZnO, Y(Lu)3Al5O12, Ca(Sr, Ba)I2, Cs2HfCl6 atd.) ve formě náno- či mikroprášku, keramiky či monokrystalu. Za tímto…

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Photovoltaic devices and light emitting diodes

This topic connected with fabrication of solar cells, photodiodes, emitting diodes. The student will get acquainted with vacuum technology, thin film deposition methods in vacuum as well as by spin coating method. The student will start to work with vacuum setups for thin film deposition. As a result of the work, a device (photodiode or…

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Supercapacitors based on 2D material Ti3C2 MXene

This topic connected with energy storage. In this project student will use the 2D Ti3C2 MXene flakes for fabrication of supercapacitor. MXene is a new 2D material and has unusual electronic, mechanical and optical properties. The student will know the principle of the supercapacitor as well as how to fabricate it. The main parameters of…

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Self-cleaning surfaces by laser micro and nanostructuring

The optimal combination of surface topography and chemistry will result in superhydrophobic properties on hard-to-process materials. These properties will be further tested for self-cleaning behavior by the fast camera and image analysis. The candidate will learn the basics of laser technology, learn general information about other technologies. The student will work on literature research and…

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Laser nanostructuring for medical applications

State-of-the-art multi-beam and beam-shaping techniques will be utilized for the development of functional surface micro and nanostructures. These structures will be evaluated with respect to anti-bacterial or anti-microbial properties and cell growth. The candidate will learn the basics of laser technology, learn general information about other technologies. The student will work on literature research and…

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Advanced glass processing and functionalization

Advanced microscopic and diffraction or interference optical systems will be used for micro-drilling and cutting of glass and similar materials. In addition, functional micro and nanostructures will be developed for anti-reflection, superhydrophobic or oleophobic properties. Optical, SEM, and AFM analysis will be performed for the determination of optimal processing window and analysis of surface topography.…

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Complex shape micromachining

Advanced micromachining strategies for processing in 3, 4 and 5 axis combined with galvanometric scanners. The candidate will learn the basics of laser technology, learn general information about other technologies. The student will work on literature research and laboratory experiments. They will get acquainted with diagnostic devices. Garant stáže: Ing. Petr Hauschwitz,Ph.D. Obor: materiály, technologie…

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Influence of laser beam size and wavelength in the determination of LIDT

The laser-induced damage resistance of large optical components remains an important limitation for the maintenance costs, reliability, and the further development of high-energy laser systems. Traditionally, the laser-induced damage thresholds (LIDT) are performed on small samples and using small laser beam sizes (usually limited by the laser output), but these test results tend to be…

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Materials engineering placement I

Student would improve an existing device for custom metal coating deposition by finding optimal parameters for the deposition process. This would require coating deposition experiments, collecting the results and adjusting the deposition system setup to improve the coating structure quality. As a result, the student will gain solid understanding of plasma coating processes. This project might develop into a bachelor’s/master’s project.

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