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Analyse of photovoltaic solar cells by the photoluminescence method
Richter, Vladimír ; Bača, Petr (referee) ; Vaněk, Jiří (advisor)
This diploma thesis deals with the issues of photovoltaic cells. The main aim of this thesis is to introduce the principles of operation of solar cells and methods of detection of defects affecting their quality. The first part is about the functional properties of silicon cells and it also examines the possibilities of detecting the defects of these structures. It also describes the most commonly used modern diagnostic methods. In the next part, practical tests of photovoltaic cells using the methods electroluminescence and photoluminescence are performed. These methods are based on the excitation of luminescence radiation of the silicon material by the external light source.
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Design of the voltage controlled oscillator
Richter, Vladimír ; Pavlík, Michal (referee) ; Háze, Jiří (advisor)
This bachelor thesis deals with the issues of voltage controlled oscillators. It analyses their current state and provides the examples of them. It also describes phase locked loop stages and the usage of voltage controlled oscillators in phase locked loops. The main aim of this thesis is to design a voltage controlled oscillator and use it to realize the important simulations.
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Design of the voltage controlled oscillator
Richter, Vladimír ; Pavlík, Michal (referee) ; Háze, Jiří (advisor)
This bachelor thesis deals with the issues of voltage controlled oscillators. It analyses their current state and provides the examples of them. It also describes phase locked loop stages and the usage of voltage controlled oscillators in phase locked loops. The main aim of this thesis is to design a voltage controlled oscillator and use it to realize the important simulations.
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Analyse of photovoltaic solar cells by the photoluminescence method
Richter, Vladimír ; Bača, Petr (referee) ; Vaněk, Jiří (advisor)
This diploma thesis deals with the issues of photovoltaic cells. The main aim of this thesis is to introduce the principles of operation of solar cells and methods of detection of defects affecting their quality. The first part is about the functional properties of silicon cells and it also examines the possibilities of detecting the defects of these structures. It also describes the most commonly used modern diagnostic methods. In the next part, practical tests of photovoltaic cells using the methods electroluminescence and photoluminescence are performed. These methods are based on the excitation of luminescence radiation of the silicon material by the external light source.
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