Investigation of 2D/3D defects in controlled-growth oxygen-deficient ZnO nanowires and their field emission

Jong Seok Jeong, Jeong Yong Lee, Hyung Koun Cho

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5 Scopus citations

Abstract

The controlled growth of oxygen-deficient ZnO nanowires on ZnO films in terms of diameter, alignment, and density is achieved by controlling the ZnO films, and the structural, optical, and field emission properties related to the oxygen-deficiency are discussed. Planar (2D) and nano-sized (3D) defects due to the large amount of oxygen deficiency are characterized using a high-resolution transmission electron microscopy with the aid of simulations. It is suggested that the two-stage linearity of the Fowler-Nordheim plot is attributable to the deep-level defects of the nonstoichiometric ZnO nanowires.

Original languageEnglish (US)
Pages (from-to)266-271
Number of pages6
JournalChemical Physics Letters
Volume503
Issue number4-6
DOIs
StatePublished - Feb 17 2011

Bibliographical note

Funding Information:
This work was supported by the National Research Foundation Grant funded by the Korean Government ( KRF-2008-314-D00153 ).

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