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Please use this identifier to cite or link to this item: http://hdl.handle.net/1942/18041

Title: Factors Influencing the Conductivity of Aqueous Sol(ution)–Gel-Processed Al-Doped ZnO Films
Authors: Damm, Hanne
Adriaensens, Peter J.
De Dobbelaere, Christopher
Capon, Boris
Elen, Ken
Drijkoningen, Jeroen
Conings, Bert
Manca, Jean V.
D'Haen, Jan
Detavernier, Christophe
Magusin, Pieter C. M. M.
Hadermann, Joke
Hardy, An
Van Bael, Marlies K.
Issue Date: 2014
Citation: CHEMISTRY OF MATERIALS, 26 (20), p. 5839-5851
Abstract: Solution processing of Al-doped ZnO (AZO) is interesting from an economical point of view for reducing synthesis and deposition costs in comparison to that for vacuum methods. Several (aqueous) chemical solution deposition routes have been explored for AZO, but the question that has never been answered is how state-of-the-art conductivity is achieved. Here, we fine tune an aqueous solution precursor for AZO, resulting in resistivities within the 10−3 Ohm cm range after a reductive treatment. Profound insights are gained through the study of the density of the film, the crystal phase, the optimum Al doping, and the effect of Al positioning in the ZnO lattice, as determined by 27Al magic-angle-spinning nuclear magnetic resonance (MAS NMR) spectroscopy in combination with 1 H NMR, in order to understand the conductivity mechanism. As the conductivity of the AZO films drops as a function of time, the position of Al is studied with respect to the observance of charge carriers using Fourier transform infrared spectroscopy. The influences of all of these different factors on conductivity are summarized in a general overview.
Notes: [Damm, Hanne; Adriaensens, Peter; De Dobbelaere, Christopher; Elen, Ken; Hardy, An; Van Bael, Marlies K.] Hasselt Univ, Inst Mat Res, B-3500 Hasselt, Belgium. [Damm, Hanne; De Dobbelaere, Christopher; Elen, Ken; Drijkoningen, Jeroen; Conings, Bert; Manca, Jean V.; D'Haen, Jan; Hardy, An; Van Bael, Marlies K.] IMOMEC, IMEC Div, B-3500 Hasselt, Belgium. [Damm, Hanne; Elen, Ken; Drijkoningen, Jeroen; Manca, Jean V.; D'Haen, Jan; Detavernier, Christophe; Hadermann, Joke; Hardy, An; Van Bael, Marlies K.] SIM Flemish Strateg Initiat Mat, SoPPoM Program, B-9052 Zwijnaarde, Belgium. [Capon, Boris; Detavernier, Christophe] Univ Ghent, Dept Solid State Sci, B-9000 Ghent, Belgium. [Drijkoningen, Jeroen; Conings, Bert; Manca, Jean V.; D'Haen, Jan] Hasselt Univ, Inst Mat Res, B-3590 Diepenbeek, Belgium. [Magusin, Pieter C. M. M.] Katholieke Univ Leuven, Ctr Surface Chem & Catalysis, B-3001 Leuven, Belgium. [Hadermann, Joke] Univ Antwerp, EMAT, B-2020 Antwerp, Belgium.
URI: http://hdl.handle.net/1942/18041
DOI: 10.1021/cm501820a
ISI #: 000343950300004
ISSN: 0897-4756
Category: A1
Type: Journal Contribution
Validation: ecoom, 2015
Appears in Collections: Research publications

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