Photoluminescence of hybrid quantum dot systems

0455685 - FZÚ 2016 RIV US eng J - Journal Article
Král, Karel - Menšík, Miroslav
Photoluminescence of hybrid quantum dot systems.
Advanced Science, Engineering and Medicine. Roč. 7, č. 4 (2015), 347-349. ISSN 2164-6627
R&D Projects: GA MŠMT LH12236; GA MŠMT LH12186
Institutional support: RVO:68378271 ; RVO:61389013
Keywords : quantum dots * energy transfer * electron-phonon interaction
Subject RIV: BM - Solid Matter Physics ; Magnetism

Electronic excitation energy transfer is studied theoretically within a prototype system of quantum dots. We use the excitonic representation of the electronic states of two quasi-zero dimensional subsystems, between which the excitation energy is transferred in a process treated as an irreversible kinetic phenomenon. The electron–phonon interaction is used to circumvent the energy conservation problem, especially when considering the so called uphill and downhill excitation transfer processes. The theory is developed upon utilizing a simplified model of two interacting quantum dots, both coupled to their environment. The theoretical approach is documented by numerical calculations. The results obtained could be relevant to various cases of the electronic excitation energy transfer between quasi zero dimensional nanostructures including the photosynthesis systems.
Permanent Link: http://hdl.handle.net/11104/0256300