Publication

Carrier capture into semiconductor quantum dots via quantum wire barriers: Localization and thermionic emission effects

Elyahou Kapon, Pascal Gallo, Qing Zhu, Justyna Szeszko
2011
Journal paper

Abstract

Carrier transport and capture paths via barriers of different dimensionality in AlGaAs/GaAs quantum wire (QWR)/quantum dot (QD) heterostructures, grown in inverted pyramids, are studied by photoluminescence (PL) spectroscopy. Evidence for thermally activated diffusion related to potential disorder in the QWR barriers and thermionic emission of carriers from the QD into the QWR barrier is observed in temperature dependent PL spectra. Similar activation energies for the thermionic emission are derived from the continuous-wave and time-resolved PL spectroscopy.

Official source

https://infoscience.epfl.ch/record/168842?ln=en

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Carrier capture into semiconductor quantum dots via quantum wire barriers: Localization and thermionic emission effects

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Single molecule fluorescence and phosphorescence studies using a scanning tunneling microscope

Single molecule fluorescence and phosphorescence studies using a scanning tunneling microscope