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|Title: ||Dispersion and microwave processing of nano-sized ITO powder for the fabrication of transparent conductive oxides|
|Authors: ||Ghanizadeh, Shaghayegh|
Hutt, David A.
Southee, Darren J.
Conway, Paul P.
Transparent conducting oxides
|Issue Date: ||2016|
|Publisher: ||© Elsevier|
|Citation: ||GHANIZADEH, S. ... et al, 2016. Dispersion and microwave processing of nano-sized ITO powder for the fabrication of transparent conductive oxides. Ceramics International, doi: 10.1016/j.ceramint.2016.08.157.|
|Abstract: ||Aqueous dispersions of tin-doped indium oxide (ITO) nanopowder were prepared and the effect of the addition of PEG 400, Tween 80 and β-alanine as dispersants was investigated using zeta potential and particle size distribution measurements. Both PEG 400 and β-alanine were found to produce stable dispersions that were used to deposit ITO thin films on glass substrates by dip and spin coating methods. The ITO thin films were heat-treated using both conventional and microwave heat treatment in order to improve the inter-particle connections and hence the resistivity and transparency of the films. All the films exhibited an average transmittance of >80% over the visible spectrum after being subjected to the heat treatment process. ITO films prepared with no dispersant showed very high resistivity values for both heating methods, however addition of 2 wt% PEG 400 to the dispersion yielded a reduction in the resistivity values to 1.4×10−1 Ω cm and 3.8×10−2 Ω cm for conventionally and microwave treated films, respectively. The surface morphological studies confirmed that addition of dispersants improved the film uniformity and inter-particle connections of the ITO films considerably.|
|Description: ||This paper is under embargo until 1st September 2017.|
|Sponsor: ||This research was funded by the UK Engineering and Physical Sciences Research Council(EPSRC)under grant number EP/L017709/1.|
|Publisher Link: ||http://dx.doi.org/10.1016/j.ceramint.2016.08.157|
|Appears in Collections:||Closed Access (Design School)|
Closed Access (Mechanical, Electrical and Manufacturing Engineering)
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