Controlling light emission of nanoparticles

摘要: In this thesis we try to improve our understanding of how nanomaterials behave and how we can manipulate their light interactions. Light interactions play an important role in many technologies. LEDs, solar cells and lasers rely on interactions with light. Nanomaterials have the potential to allow the use of materials that were previously unsuitable or enable new processes using the same materials. The light observed from the materials studied originates from the nanoparticles within them: semiconductor nanocrystals (silicon and CsPbX 3 perovskites) and rare-earth ions (erbium, europium and ytterbium). The study concentrates on the light interaction properties of these nanomaterials, and how to manipulate the materials and influence the resulting light emission.