High performance transparent multi-touch sensors based on silver nanowires

Cann, Maria; Large, Matthew J.; Henley, Simon J.; Milne, David; Sato, Taku; Chan, Helios; Jurewicz, Izabela; Dalton, Alan B.

doi:10.1016/j.mtcomm.2016.03.005

Cited by 46 publications

(49 citation statements)

References 33 publications

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“…The prominence of these effects is also a function of the density of the nanowire network. Aspects of this behaviour have previously been experimentally observed 8,9 .…”

Section: Introductionmentioning

confidence: 65%

Finite-size scaling in silver nanowire films: design considerations for practical devices

et al. 2016

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We report the first application of finite-size scaling theory to nanostructured percolating networks, using silver nanowire (AgNW) films as a model system for experiment and simulation. AgNWs have been shown to be a prime candidate for replacing Indium Tin Oxide (ITO) in applications such as capacitive touch sensing. While their performance as large area films is well-studied, the production of working devices involves patterning of the films to produce isolated electrode structures, which exhibit finite-size scaling when these features are sufficiently small. We demonstrate a generalised method for understanding this behaviour in practical rod percolation systems, such as AgNW films, and study the effect of systematic variation of the length distribution of the percolating material. We derive a design rule for the minimum viable feature size in a device pattern, relating it to parameters which can be derived from a transmittance-sheet resistance data series for the material in question. This understanding has direct implications for the industrial adoption of silver nanowire electrodes in applications where small features are required including single-layer capacitive touch sensors, LCD and OLED display panels.

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“…The prominence of these effects is also a function of the density of the nanowire network. Aspects of this behaviour have previously been experimentally observed 8,9 .…”

Section: Introductionmentioning

confidence: 65%

Finite-size scaling in silver nanowire films: design considerations for practical devices

et al. 2016

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“…With the durability and the compatibility of multi-touch features, the capacitive sensing arises many researchers' attention worldwide. Capacitive touch panels can now be divided into single [10][11][12] and doublesided sensors [13,14] based on the number of transparent conductive layers. (b) show the photograph of the working touch panel [10].…”

Section: Touch Panelsmentioning

confidence: 99%

“…techniques are compatible with low-energy deposition process and without any vacuum equipment. Direct laser ablation [13,75], shadow mask [11], chemical etching using the photolithography process [76] are all the patterning strategies for flexible transparent electrodes.…”

Section: Flexible Electronicsmentioning

confidence: 99%

Fabrication and Applications of Flexible Transparent Electrodes Based on Silver Nanowires

Yi¹,

Zhu²,

Deng³

2018

Flexible Electronics

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There has been an explosion of interests in using flexible transparent electrodes for nextgeneration flexible electronics, such as touch panels, flexible lighting, flexible solar cells, and wearable sensors. Silver nanowires (AgNWs) are a promising material for flexible transparent electrodes due to high electrical conductivity, optical transparency and mechanical flexibility. Despite many efforts in this field, the optoelectronic performance of AgNW networks is still not sufficient to replace the present material, indium tin oxide (ITO), due to the high junction resistance. Also, the environmental stability and the mechanical properties need enhancement for future commercialization. Many studies have attempted to overcome such problems by tuning the AgNW synthesis and optimizing the film-forming process. In this chapter, we survey recent progresses of AgNWs in flexible electronics by describing both fabrication and applications of flexible transparent AgNW electrodes. The synthesis of AgNWs and the fabrication of AgNW electrodes will be demonstrated, and the performance enhanced by various methods to suit different applications will be also discussed. Finally, technical challenges and future trends are presented for the application of transparent electrodes in flexible electronics.

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“…These properties, together with their decreasing cost and large-scale manufacturing methods, make them perfect candidates as replacement materials of Indium Tin Oxide (ITO) for transparent electrode applications to name a few. [1][2][3][4][5][6][7][8][9] In nature, the interactions between amino acids, peptides and proteins with metal ions have a fundamental role in many biological processes including oxygen transport and storage, enzyme inhibition, etc. 10 Even though silver ions are not involved in metabolic pathways, they are highly important from a medical point of view.…”

Section: Introductionmentioning

confidence: 99%

Functionalization of Silver Nanowire Transparent Electrodes with Self-Assembled 2-Dimensional Tectomer Nanosheets

Jurewicz

Garriga

Large

et al. 2018

ACS Appl. Nano Mater.

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Here, we describe the unusual self-assembly of amine-terminated oligoglycine peptides into extended two-dimensional sheets in the presence of silver nanowires. The resulting tectomer sheets are shown to have a strong affinity for the nanowires through a charge-transfer interaction as evidenced by X-ray photoelectron spectroscopy. We show that extended assemblies of metalpeptide hybrids offer additional augmentative functionalities, for instance, the tectomer sheets are hydrophobic in nature and act as a protective layer preventing oxidation and degradation of the nanowires when exposed to atmospheric conditions. Moreover, for silver nanowire percolating networks the presence of the peptide markedly increases the overall electrical conductivity through mechanical squeezing of wire-wire junctions in the network. The peptide-metal interface can be controlled by pH stimulus thus potentially offering new directions where silver nanowire assemblies are used for transparent electrodes ranging from antimicrobial coatings to biosensors.

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High performance transparent multi-touch sensors based on silver nanowires

Cited by 46 publications

References 33 publications

Finite-size scaling in silver nanowire films: design considerations for practical devices

Finite-size scaling in silver nanowire films: design considerations for practical devices

Fabrication and Applications of Flexible Transparent Electrodes Based on Silver Nanowires

Functionalization of Silver Nanowire Transparent Electrodes with Self-Assembled 2-Dimensional Tectomer Nanosheets

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