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Deposition of GaN nanocrystals with Ag nanoparticles
Michalko, Matej ; Dvořák, Petr (oponent) ; Čalkovský, Vojtěch (vedoucí práce)
The presented bachelor thesis deals with the preparation of GaN nanocrystals with Ag nanoparticles. In the theoretical part GaN, its properties and applications are introduced. Furthermore, possible substrates for GaN growth and preparation methods are presented, with a main focus on MBE. The thesis also discusses the basic principles of photoluminescence and its enhancement using metal nanoparticles. The experimental part deals with the preparation of GaN nanocrystals with Ag nanoparticles. First, Ga islands are deposited on Si(111) substrate, the second step is Ga nitridation. Subsequently, Ag nanoparticles of different sizes are deposited. The different steps were optimized and measured by analytical techniques such as SEM and photoluminescence. Finally, the dependence of the photoluminescence enhancement on the size of Ag nanoparticles was established.

Viz též: podobná jména autorů
1 Michalko, Maria
4 Michalko, Miroslav
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