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Optimizing the optical and electrical properties of graphene ink thin films by laser-annealing
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2015 (English)In: 2D Materials, ISSN 2053-1583, Vol. 2, no 1, 011003Article in journal, Letter (Refereed) Published
Abstract [en]

We demonstrate a facile fabrication technique for graphene-based transparent conductive films. Highly flat and uniform graphene films are obtained through the incorporation of an efficient laser annealing technique with one-time drop casting of high-concentration graphene ink. The resulting thin films are uniform and exhibit a transparency of more than 85% at 550 nm and a sheet resistance of about 30 kΩ/sq. These values constitute an increase of 45% in transparency, a reduction of surface roughness by a factor of four and a decrease of 70% in sheet resistance compared to un-annealed films.

Place, publisher, year, edition, pages
Institute of Physics (IOP), 2015. Vol. 2, no 1, 011003
Keyword [en]
graphene, transparent conductor, ink-jet printing, laser annealing
National Category
Materials Engineering
URN: urn:nbn:se:kth:diva-196129DOI: 10.1088/2053-1583/2/1/011003ISI: 000354987200003ScopusID: 2-s2.0-84947921205OAI: diva2:1046146
EU, European Research Council, 307311EU, European Research Council, 641416German Research Foundation (DFG), LE 2440/1-1German Research Foundation (DFG), HA 3022/7-2Swedish Research Council, 2013-5759Swedish Research Council, 2014–6160Göran Gustafsson Foundation for promotion of scientific research at Uppala University and Royal Institute of Technology, 1415 B

QC 20161114

Available from: 2016-11-11 Created: 2016-11-11 Last updated: 2016-11-14Bibliographically approved

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Li, JiantongÖstling, Mikael
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