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Naji, M. |
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Motta, Antonella |
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Aletan, Dirar |
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Mohamed, Tarek |
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Ertürk, Emre |
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Taccardi, Nicola |
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Kononenko, Denys |
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Petrov, R. H. | Madrid |
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Alshaaer, Mazen | Brussels |
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Bih, L. |
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Casati, R. |
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Muller, Hermance |
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Kočí, Jan | Prague |
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Šuljagić, Marija |
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Kalteremidou, Kalliopi-Artemi | Brussels |
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Azam, Siraj |
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Ospanova, Alyiya |
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Blanpain, Bart |
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Ali, M. A. |
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Popa, V. |
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Rančić, M. |
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Ollier, Nadège |
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Azevedo, Nuno Monteiro |
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Landes, Michael |
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Rignanese, Gian-Marco |
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Tan, Hh
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (5/5 displayed)
- 2022The Effects of Surfaces and Surface Passivation on the Electrical Properties of Nanowires and Other Nanostructures: Time-Resolved Terahertz Spectroscopy Studies
- 2020Exploring the band structure of Wurtzite InAs nanowires using photocurrent spectroscopy
- 2018Probing the photophysics of semiconductor nanomaterials using optical pump-terahertz probe spectroscopy: From nanowires to perovskites
- 2017The infuence of atmosphere on performance of pure-phase WZ and ZB InAs nanowire transistors
- 2009Carrier Dynamics and Quantum Confinement in type II ZB-WZ InP Nanowire Homostructurescitations
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article
Carrier Dynamics and Quantum Confinement in type II ZB-WZ InP Nanowire Homostructures
Abstract
We use time-resolved photoluminescence from single InP nanowires containing both wurtzite (WZ) and zincblende (ZB) crystalline phases to measure the carrier dynamics of quantum confined excitons in a type-II homostructure. The observed recombination lifetime increases by nearly 2 orders of magnitude from 170 ps for excitons above the conduction and valence band barriers to more than 8400 ps for electrons and holes that are strongly confined in quantum wells defined by monolayer-scale ZB sections in a predominantly WZ nanowire. A simple computational model, guided by detailed high-resolution transmission electron microscopy measurements from a single nanowire, demonstrates that the dynamics are consistent with the calculated distribution of confined states for the electrons and holes.