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Large MJ, Cann M, Ogilvie SP, et al. Finite-size scaling in silver nanowire films: design considerations for practical devices. Nanoscale. 2016;8(28):13701-7doi: 10.1039/c6nr03960j.
Large, M. J., Cann, M., Ogilvie, S. P., King, A. A., Jurewicz, I., & Dalton, A. B. (2016). Finite-size scaling in silver nanowire films: design considerations for practical devices. Nanoscale, 8(28), 13701-7. https://doi.org/10.1039/c6nr03960j
Large, Matthew J, et al. "Finite-size scaling in silver nanowire films: design considerations for practical devices." Nanoscale vol. 8,28 (2016): 13701-7. doi: https://doi.org/10.1039/c6nr03960j
Large MJ, Cann M, Ogilvie SP, King AA, Jurewicz I, Dalton AB. Finite-size scaling in silver nanowire films: design considerations for practical devices. Nanoscale. 2016 Jul 14;8(28):13701-7. doi: 10.1039/c6nr03960j. PMID: 27377048.
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Nanoscale. 2016 Jul 14;8(28):13701-7. doi: 10.1039/c6nr03960j.

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

Nanoscale

Matthew J Large, Maria Cann, Sean P Ogilvie, Alice A K King, Izabela Jurewicz, Alan B Dalton

Affiliations

  1. University of Surrey, Guildford, Surrey GU2 7XH, UK and University of Sussex, Falmer, East Sussex BN1 9RH, UK. [email protected] [email protected].
  2. M-Solv Ltd, Oxonian Park, Kidlington OX5 1FP, UK.
  3. University of Sussex, Falmer, East Sussex BN1 9RH, UK. [email protected] [email protected].
  4. University of Surrey, Guildford, Surrey GU2 7XH, UK.

PMID: 27377048 DOI: 10.1039/c6nr03960j

Abstract

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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