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Study of multilayer perovskite structures properties
Gabzdyl, Adam ; Kratochvíl, Matouš (referee) ; Pospíšil, Jan (advisor)
The bachelor thesis focuses on the optical, electrical and dielectric properties of perovskites and their multilayer structures for use in optoelectronic applications. Samples of lead MAPbI3 and lead-free Cs3Bi2I9 perovskite in a photovoltaic cell of FTO/SnO2/perovskite/spiro-OMeTAD/Au structure were prepared and studied. The optoelectrical properties were determined by direct current measurement of current-voltage characteristics and the dielectric properties were determined by impedance spectroscopy. It was determined that with this photovoltaic cell structure, lead perovskites are a more suitable material for optoelectronic applications than lead-free perovskites because they exhibit many times higher solar energy conversion efficiency and possess more favorable electron processes.
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Information System Assessment and Proposal for ICT Modification
Gabzdyl, Adam ; Junga,, Filip (referee) ; Koch, Miloš (advisor)
This thesis is analyzing the information system of company Teplo Těšín a.s. The theoretical part is the introduction to the topic of information systems and into the different methods and procedures for analysis of the information systems. Based on these analyzes are discovered shortcomings and suggested possible solutions. These suggestions may serve to the company management as a basis for improving the current information system or to selection of a new information system.
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Information System Assessment and Proposal for ICT Modification
Gabzdyl, Adam ; Junga,, Filip (referee) ; Koch, Miloš (advisor)
This thesis is analyzing the information system of company Teplo Těšín a.s. The theoretical part is the introduction to the topic of information systems and into the different methods and procedures for analysis of the information systems. Based on these analyzes are discovered shortcomings and suggested possible solutions. These suggestions may serve to the company management as a basis for improving the current information system or to selection of a new information system.
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