Regensburg 2025 – scientific programme

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HL: Fachverband Halbleiterphysik

HL 15: Quantum Dots and Wires: Growth and Properties

HL 15.2: Talk

Tuesday, March 18, 2025, 09:45–10:00, H13

Electron capture and emission dynamics of self-assembled quantum dots far from equilibrium — •Maximilian Erdmann¹, Jan Lange¹, Lukas Berg¹, Laurin Schnorr¹, Thomas Heinzel¹, Severin Krüger², Arne Ludwig², and Andreas Wieck² — ¹Condensed Matter Physics Laboratory, Heinrich Heine University, Düsseldorf, Germany — ²Lehrstuhl für Angewandte Festkörperphysik, Ruhr-Universität, Bochum, Germany

The subject of the experiment were the electron capture and emission dynamics of Self-Assembled Quantum Dots (SAQD) far away from equilibrium conditions, at a temperature of 77 K. The SAQDs are located in a semiconductor structure that can be regarded as a Schottky diode. For analysing the capture and emission dynamics, the capacitance transients of this sample were investigated using the methods of Deep Level Transient Spectroscopy (DLTS).

Keywords: Quantum Dots; Dynamics; DLTS; Capacitance