Multi-excitonic emission from Stranski-Krastanov GaN/AlN quantum dots inside a nanoscale tip

Abstract : Single-dot time-resolved micro-photoluminescence spectroscopy and correlated electron tomography (ET) have been performed on self-assembled GaN/AlN quantum dots isolated within a field-emission nanoscale tip by focused ion beam (FIB). Despite the effect of the FIB, the system conserves the capability of emitting light through multi-excitonic complexes. The optical spectroscopy data have then been correlated with the electronic structure and lifetime parameters that could be extracted using the structural parameters obtained by ET via a 6 band k.p model.
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https://hal.archives-ouvertes.fr/hal-01766091
Contributor : Etienne Talbot <>
Submitted on : Friday, April 13, 2018 - 12:02:31 PM
Last modification on : Wednesday, July 3, 2019 - 11:26:02 AM

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L. Mancini, F. Moyon, J. Houard, I. Blum, W. Lefebvre, et al.. Multi-excitonic emission from Stranski-Krastanov GaN/AlN quantum dots inside a nanoscale tip. Applied Physics Letters, American Institute of Physics, 2017, 111 (24), ⟨10.1063/1.5004417⟩. ⟨hal-01766091⟩

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