Mixed-dimension silver nanowires for solution-processed, flexible, transparent and conducting electrodes with improved optical and physical properties

Kumar, D., Stoichkov, V., Ghosh, S., Smith, G.C. and Kettle, J. (2017) Mixed-dimension silver nanowires for solution-processed, flexible, transparent and conducting electrodes with improved optical and physical properties. Flexible and Printed Electronics, 2, 015005. (doi: 10.1088/2058-8585/aa6011)

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Abstract

In this work, we present an alternative method for the spray coating of silver nanowire contact electrodes by employing a mixture of short and long nanowires. Mixed silver nanowires are found to give improved optical properties with 2–5% higher transparency for the same sheet resistance of 25 Ω sq−1 compared to silver nanowires prepared with a single geometry. The figure of merit for the 25 Ω sq−1 sheet resistance electrode is found to be highest for the mixed-composition AgNWs-M1 (mixture of AgNWs-30L and AgNWs-60S) electrodes. The average root mean square surface roughness (Rq) parameter by white light interferometry is found to be lower for mixed-composition silver nanowire electrodes (Rq = 3–4 nm) compared to individual parent fixed-dimension-type silver nanowire electrodes (Rq = 6–8 nm).

Item Type:Articles
Additional Information:This work was supported by the UK Engineering and Physical Sciences Research Council through the EPSRC Centre for Innovative Manufacturing in Large Area Electronics (grant number EP/K03099X/1). Vasil Stoichkov would like to thank Sêr Cymru National Research Network for funding of his PhD studies.
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Kettle, Dr Jeff
Authors: Kumar, D., Stoichkov, V., Ghosh, S., Smith, G.C., and Kettle, J.
College/School:College of Science and Engineering > School of Engineering > Electronics and Nanoscale Engineering
Journal Name:Flexible and Printed Electronics
Publisher:IOP Publishing
ISSN:2058-8585
ISSN (Online):2058-8585
Published Online:20 March 2017

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