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Berlin 2018 – scientific programme

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HL: Fachverband Halbleiterphysik

HL 38: 2D materials: Chalcogenides II (joint session HL/DS)

HL 38.10: Talk

Thursday, March 15, 2018, 12:00–12:15, A 151

Nanoplatelets - a material system between strong confinement and weak confinement — •Marten Richter — Institut für Theoretische Physik, Technische Universität Berlin, Germany

Recently grown CdSe Nanoplatlets are often described to have a similar electronic structure as two-dimensional quantum wells and are promoted as colloidal quantum wells with monolayer precision width. Here we show, that nanoplatelets are not ideal quantum wells, but cover (depending on their size a strong confinement) an intermediate and a Coulomb interaction dominated regime [1]. For the analysis we show results from a solution of the full four dimensional exciton wave function and analyze different confinement regimes.

[1] Phys. Rev. Materials 1, 016001 (2016)

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