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Insulator-conductor type transitions in graphene-modified silver nanowire networks: a route to inexpensive transparent conductors
journal contribution
posted on 2023-06-09, 11:42 authored by Izabela Jurewicz, Azin Fahimi, Phillip E Lyons, Ronan J Smith, Maria Cann, Matthew LargeMatthew Large, Mingwen Tian, Jonathan N Coleman, Alan DaltonAlan DaltonSilver nanowire coatings are an attractive alternative to indium tin oxide for producing transparent conductors. To fabricate coatings with low sheet resistance required for touchscreen displays, a multi-layer network of silver nanowires must be produced that may not be cost effective. This problem is counteracted here by modifying the electrical properties of an ultra low-density nanowire network through local deposition of conducting graphene platelets. Unlike other solution-processed materials, such as graphene oxide, our pristine graphene is free of oxygen functional groups, resulting in it being electrically conducting without the need for further chemical treatment. Graphene adsorption at interwire junctions as well as graphene connecting adjacent wires contributes to a marked enhancement in electrical properties. Using our approach, the amount of nanowires needed to produce viable transparent electrodes could be more than 50 times less than the equivalent pristine high density nanowire networks, thus having major commercial implications. Using a laser ablation process, it is shown that the resulting fi lms can be patterned into individual electrode structures, which is a pre-requisite to touchscreen sensor fabrication.
History
Publication status
- Published
File Version
- Published version
Journal
Advanced Functional MaterialsISSN
1616-301XPublisher
WileyExternal DOI
Issue
48Volume
24Page range
7580-7587Department affiliated with
- Physics and Astronomy Publications
Research groups affiliated with
- Materials Physics Group Publications
Full text available
- No
Peer reviewed?
- Yes
Legacy Posted Date
2018-01-19First Compliant Deposit (FCD) Date
2018-01-19Usage metrics
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