Please use this identifier to cite or link to this item: http://dx.doi.org/10.14279/depositonce-9801
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Main Title: Size-dependent recombination dynamics in ZnO nanowires
Author(s): Reparaz, Juan Sebastián
Güell, Frank
Wagner, Markus R.
Hoffmann, Axel
Cornet, Albert
Morante, Joan Ramon
Type: Article
Language Code: en
Abstract: A deep understanding of the recombination dynamics of ZnO nanowires (NWs) is a natural step for a precise design of on-demand nanostructures based on this material system. In this work we investigate the influence of finite-size on the recombination dynamics of the neutral bound exciton around 3.365 eV for ZnO NWs with different diameters. We demonstrate that the lifetime of this excitonic transition decreases with increasing the surface-to-volume ratio due to a surface induced recombination process. Furthermore, we have observed two broad transitions around 3.341 and 3.314 eV, which were identified as surface states by studying the dependence of their life time and intensitiy with the NWs dimensions.
URI: https://depositonce.tu-berlin.de/handle/11303/10908
http://dx.doi.org/10.14279/depositonce-9801
Issue Date: 1-Feb-2010
Date Available: 10-Mar-2020
DDC Class: 530 Physik
Subject(s): ZnO nanowires
size-dependent
lifetime
recombination dynamics
Sponsor/Funder: DFG, 43659573, SFB 787: Halbleiter - Nanophotonik: Materialien, Modelle, Bauelemente
License: http://rightsstatements.org/vocab/InC/1.0/
Journal Title: Applied Physics Letters
Publisher: American Institute of Physics (AIP)
Publisher Place: Melville, NY
Volume: 96
Issue: 5
Article Number: 053105
Publisher DOI: 10.1063/1.3294327
EISSN: 1077-3118
ISSN: 0003-6951
Notes: This article may be downloaded for personal use only. Any other use requires prior permission of the author and AIP Publishing. This article appeared in Appl. Phys. Lett. 96, 053105 (2010) and may be found at https://doi.org/10.1063/1.3294327.
Appears in Collections:FG Optische Charakterisierung von Halbleitern » Publications

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