5 papers
Ultra-high-vacuum cluster tool for epitaxial synthesis and optical spectroscopy of reactive 2D materials
M. Dembecki, J. Schabesberger, M. Bissolo +8
The large-area synthesis of high-crystalline-quality two-dimensional (2D) materials is at the core of novel material integration for semiconductor technology. This effort relies on…
Molecular beam epitaxy of wafer-scale O-band InAs/InGaAs quantum dots on GaAs for quantum photonics
Pavel S. Avdienko, Lukas Hanschke, Quirin Buchinger +13
We report a scalable molecular beam epitaxy strategy to achieve a low density of O-band electrically tunable InAs/InGaAs quantum dots (QDs) on GaAs(001) substrates. Our approach is…
Electrically tunable orbital coupling and quantum light emission from O-band quantum dot molecules
P. S. Avdienko, L. Hanschke, Q. Buchinger +10
We present the observation of electrically tunable quantum coupling of orbital states in individual InAs/InGaAs quantum dot molecules emitting in the telecom O-band (~1300 nm). By…
Unveiling the growth mode diagram of GaSe on sapphire
M. Bissolo, M. Dembecki, J. Belz +10
The growth of two-dimensional epitaxial materials on industrially relevant substrates is critical for enabling their scalable synthesis and integration into next-generation technol…
Unraveling Quantum Size-Dependent Optoelectrical Phenomena in Hot Carrier Quantum Well Structures
Nil Selen Aydin, Leopold Rothmayer, Nabi Isaev +6
The enhancement of power conversion efficiency beyond the theoretical limit of single-junction solar cells is a key objective in the advancement of hot carrier solar cells. Recent…