Berlin 2018 – scientific programme

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HL: Fachverband Halbleiterphysik

HL 24: Poster Session II

HL 24.30: Poster

Tuesday, March 13, 2018, 18:30–20:30, Poster F

Optoelectronic Coupling Between Colloidal Quantum Dots and Burrowed Quantum Wells — •Mikko Wilhelm¹, Atif Masood¹, Wolfgang Parak², and Wolfram Heimbrodt¹ — ¹Philipps-Universität Marburg — ²Universität Hamburg

The optoelectronic coupling between colloidal CdS quantums and a buried quantum well is studied. CdS quantum dots of different sizes have been deposited via drop casting on a MBE grown quantum well structure, which consists of a 5nm thick ZnSe quantum well and a (Zn, Mn)Se barrier of different thickness and Mn concentration. The energy transfer between the quantum dots on top of the substrate and the burrowed quantum well is investigated with cw- and time resolved luminescence measurements in the nano- and picosecond range. Measurements were performed at different temperatures and the results are discussed in detail.