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Issue 18, 2017
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Gradual modification of ITO particle's crystal structure and optical properties by pulsed UV laser irradiation in a free liquid jet

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Abstract

Indium tin oxide (ITO) particle coatings are known for high transparency in the visible, good conductive properties and near-infrared absorption. These properties depend on ITO particle's stoichiometric composition, defects and size. Here we present a method to gradually change ITO particle's optical properties by a simple and controlled laser irradiation process. The defined irradiation process and controlled energy dose input allows one to engineer the absorption and transmission of coatings made from these particles. We investigate the role of the surrounding solvent, influence of laser fluence and the specific energy dose targeting modification of the ITO particle's morphology and chemistry by stepwise laser irradiation in a free liquid jet. TEM, SEM, EDX, XPS, XRD and Raman are used to elucidate the structural, morphological and chemical changes of the laser-induced ITO particles. On the basis of these results the observed modification of the optical properties is tentatively attributed to chemical changes, e.g. laser-induced defects or partial reduction.

Graphical abstract: Gradual modification of ITO particle's crystal structure and optical properties by pulsed UV laser irradiation in a free liquid jet

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Publication details

The article was received on 02 Jan 2017, accepted on 26 Mar 2017 and first published on 28 Mar 2017


Article type: Paper
DOI: 10.1039/C7DT00010C
Citation: Dalton Trans., 2017,46, 6039-6048
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    Gradual modification of ITO particle's crystal structure and optical properties by pulsed UV laser irradiation in a free liquid jet

    M. Lau, T. Straube, A. V. Aggarwal, U. Hagemann, B. de Oliveira Viestel, N. Hartmann, T. Textor, H. Lutz, J. S. Gutmann and S. Barcikowski, Dalton Trans., 2017, 46, 6039
    DOI: 10.1039/C7DT00010C

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