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HL: Fachverband Halbleiterphysik
HL 64: Poster II
HL 64.39: Poster
Donnerstag, 19. März 2020, 10:00–13:00, P1A
Magneto-optical studies of manganese doped collodial core shell CdS/ZnS quantum dots — •Johannes Röder1, Mikko Wilhelm1, Nadeem Sabir1, Wolfgang Parak2, and Wolfram Heimbrodt1 — 1Philipps-Universität Marburg, 35032 Marburg, Germany — 2Universität Hamburg, 22761 Hamburg, Germany
The magnetic field dependency of the photoluminescence of colloidal core shell CdS/ZnS quantum dots doped with manganese in the ZnS shell are investigated. The focus of this investigations was on the influence of the Mn position in the core shell dots on the magneto-optical properties. There are 2 different samples and 2 reference samples investigated: One were Mn is directly grown on the CdS core together with a ZnS shell and another were Mn is introduced after the CdS core is already covered with a ZnS shell. Samples were Mn is directly grown on the CdS core without a ZnS shell and a CdS core with 2 shell layers of ZnS without any Mn are used as reference samples. To investigate the temperature dependency the quantum dots were transferred from solution via drop casting on a quartz substrate. The results of these measurements will be discussed in detail.