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Main Title: Recombination dynamics in ZnO nanowires: Surfaces states versus mode quality factor
Author(s): Reparaz, Juan Sebastián
Güell, Frank
Wagner, Markus R.
Callsen, Gordon
Kirste, Ronny
Claramunt, Sergi
Morante, Juan Ramon
Hoffmann, Axel
Type: Article
Language Code: en
Abstract: In this work, we investigate the influence of finite size on the recombinations dynamics of ZnO nanowires. We demonstrate that diameter as well as length of nanowires determine the lifetime of the neutral donor bound excitons. Our findings suggest that while the length is mainly responsible for different mode quality factors of the cavity-like nanowires, the diameter determines the influence of surface states as alternative recombinations channels for the optical modes trapped in the nanocavity. In addition, comparing nanowires grown using different catalyst we show that the surfaces states strongly depend on each precursor characteristics.
Issue Date: 1-Oct-2010
Date Available: 10-Mar-2020
DDC Class: 530 Physik
Subject(s): ZnO nanowires
surface states
recombination dynamics
Sponsor/Funder: DFG, 43659573, SFB 787: Halbleiter - Nanophotonik: Materialien, Modelle, Bauelemente
DFG, 53182490, EXC 314: Unifying Concepts in Catalysis
Journal Title: Applied Physics Letters
Publisher: American Institute of Physics (AIP)
Publisher Place: Melville, NY
Volume: 97
Issue: 13
Article Number: 133116
Publisher DOI: 10.1063/1.3496444
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. 97, 133116 (2010) and may be found at
Appears in Collections:FG Optische Charakterisierung von Halbleitern » Publications

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