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High-performance transparent and flexible electrodes made by flash-light sintering of gold nanoparticles
Mid Sweden University, Faculty of Science, Technology and Media, Department of Natural Sciences.ORCID iD: 0000-0003-2873-7875
Mid Sweden University, Faculty of Science, Technology and Media, Department of Electronics Design.
Mid Sweden University, Faculty of Science, Technology and Media, Department of Natural Sciences.ORCID iD: 0000-0001-9137-3440
Mid Sweden University, Faculty of Science, Technology and Media, Department of Electronics Design.ORCID iD: 0000-0003-2965-0288
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2018 (English)In: ACS Applied Energy Materials, E-ISSN 2574-0962, Vol. 1, no 12, p. 7191-7198Article in journal (Refereed) Published
Abstract [en]

Metallic nanowire-based transparent electrodes (TEs) are potential alternatives to indium tin oxide (ITO). To achieve a high performance [sheet resistance (Rs) < 100 Ω/sq, transmittance (T%) > 90%], the nanowires must have a high length-to-diameter (L/D) ratio to minimize the number of wire-to-wire junctions. Attempts to produce TEs with gold nanowires have been made, and the results reveal difficulties in achieving the requirements. A successful strategy involves creating templated gold nanonetworks through multiple procedures. Here, we present a simple and efficient method that uses flash-light sintering of a gold nanonetwork film into gold TEs (Rs: 82.9 Ω/sq, T %: 91.79%) on a thin polycarbonate film (25 μm). The produced gold TEs have excellent mechanical, electrical, optical, and chemical stabilities. Mechanisms of the formation of gold nanonetworks and the effect of flash-light have been analyzed. Our findings provide a scalable process for producing transparent and flexible gold electrodes with a total processing time of less than 8 min without the use of heating, vacuum processing, and organic chemicals and without any material loss. This is possible because all the gold nanoparticles have been aggregated and filtrated on the filter membranes. The area density of gold is 0.094 g/m2 leading low material costs, which is very competitive with the price of commercial TEs.

Place, publisher, year, edition, pages
2018. Vol. 1, no 12, p. 7191-7198
Keywords [en]
transparent electrode, flexible electrode, gold nanoparticles, flash-light sintering, high performance
National Category
Condensed Matter Physics
Identifiers
URN: urn:nbn:se:miun:diva-35380DOI: 10.1021/acsaem.8b01649ISI: 000458706800063Scopus ID: 2-s2.0-85064752503OAI: oai:DiVA.org:miun-35380DiVA, id: diva2:1274920
Available from: 2019-01-03 Created: 2019-01-03 Last updated: 2019-07-08Bibliographically approved

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Zhang, RenyunEngholm, MagnusHummelgård, MagnusAndersson, HenrikÖrtegren, JonasOlin, Håkan

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Zhang, RenyunEngholm, MagnusHummelgård, MagnusAndersson, HenrikÖrtegren, JonasOlin, Håkan
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Department of Natural SciencesDepartment of Electronics Design
Condensed Matter Physics

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