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A molecular approach to Cu doped ZnO nanorods with tunable dopant content

Pashchanka, Mikhail and Hoffmann, Rudolf C. and Gurlo, Aleksander and Swarbrick, Janine C. and Khanderi, Jayaprakash and Engstler, Jörg and Issanin, Alexander and Schneider, Jörg J. (2011):
A molecular approach to Cu doped ZnO nanorods with tunable dopant content.
In: Dalton Transactions, RSC, pp. 4307-4314, 40, (16), ISSN 1477-9226, [Online-Edition: http://dx.doi.org/10.1039/c0dt01567a],
[Article]

Abstract

A novel molecular approach to the synthesis of polycrystalline Cu-doped ZnO rod-like nanostructures with variable concentrations of introduced copper ions in ZnO host matrix is presented. Spectroscopic (PLS, variable temperature XRD, XPS, ELNES, HERFD) and microscopic (HRTEM) analysis methods reveal the +II oxidation state of the lattice incorporated Cu ions. Photoluminescence spectra show a systematic narrowing (tuning) of the band gap depending on the amount of Cu(II) doping. The advantage of the template assembly of doped ZnO nanorods is that it offers general access to doped oxide structures under moderate thermal conditions. The doping content of the host structure can be individually tuned by the stoichiometric ratio of the molecular precursor complex of the host metal oxide and the molecular precursor complex of the dopant, Di-aquo-bis[2-(methoxyimino)-propanoato]zinc(II) 1 and -copper(II) 2. Moreover, these keto-dioximato complexes are accessible for a number of transition metal and lanthanide elements, thus allowing this synthetic approach to be expanded into a variety of doped 1D metal oxide structures.

Item Type: Article
Erschienen: 2011
Creators: Pashchanka, Mikhail and Hoffmann, Rudolf C. and Gurlo, Aleksander and Swarbrick, Janine C. and Khanderi, Jayaprakash and Engstler, Jörg and Issanin, Alexander and Schneider, Jörg J.
Title: A molecular approach to Cu doped ZnO nanorods with tunable dopant content
Language: English
Abstract:

A novel molecular approach to the synthesis of polycrystalline Cu-doped ZnO rod-like nanostructures with variable concentrations of introduced copper ions in ZnO host matrix is presented. Spectroscopic (PLS, variable temperature XRD, XPS, ELNES, HERFD) and microscopic (HRTEM) analysis methods reveal the +II oxidation state of the lattice incorporated Cu ions. Photoluminescence spectra show a systematic narrowing (tuning) of the band gap depending on the amount of Cu(II) doping. The advantage of the template assembly of doped ZnO nanorods is that it offers general access to doped oxide structures under moderate thermal conditions. The doping content of the host structure can be individually tuned by the stoichiometric ratio of the molecular precursor complex of the host metal oxide and the molecular precursor complex of the dopant, Di-aquo-bis[2-(methoxyimino)-propanoato]zinc(II) 1 and -copper(II) 2. Moreover, these keto-dioximato complexes are accessible for a number of transition metal and lanthanide elements, thus allowing this synthetic approach to be expanded into a variety of doped 1D metal oxide structures.

Journal or Publication Title: Dalton Transactions
Volume: 40
Number: 16
Publisher: RSC
Uncontrolled Keywords: Copper
Divisions: 11 Department of Materials and Earth Sciences
11 Department of Materials and Earth Sciences > Material Science
11 Department of Materials and Earth Sciences > Material Science > Dispersive Solids
11 Department of Materials and Earth Sciences > Material Science > Surface Science
07 Department of Chemistry
07 Department of Chemistry > Fachgebiet Anorganische Chemie
Date Deposited: 04 Apr 2012 09:06
Official URL: http://dx.doi.org/10.1039/c0dt01567a
Identification Number: doi:10.1039/c0dt01567a
Funders: Financial support of DFG
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