Spray deposition of highly transparent, low-resistance networks of silver nanowires over large areas

Vittorio Scardaci; Richard Coull; Philip E Lyons; David Rickard; Jonathan N Coleman

doi:10.1002/smll.201100647

Spray deposition of highly transparent, low-resistance networks of silver nanowires over large areas

Small. 2011 Sep 19;7(18):2621-8. doi: 10.1002/smll.201100647. Epub 2011 Aug 1.

Authors

Vittorio Scardaci¹, Richard Coull, Philip E Lyons, David Rickard, Jonathan N Coleman

Affiliation

¹ Centre for Research on Adaptive Nanostructure and Nanodevices, Trinity College Dublin, Dublin 2, Ireland.

PMID: 21805625
DOI: 10.1002/smll.201100647

Abstract

A method to produce scalable, low-resistance, high-transparency, percolating networks of silver nanowires by spray coating is presented. By optimizing the spraying parameters, networks with a sheet resistance of R(s) ≈ 50 Ω □(-1) at a transparency of T = 90% can be produced. The critical processing parameter is shown to be the spraying pressure. Optimizing the pressure reduces the droplet size resulting in more uniform networks. High uniformity leads to a low percolation exponent, which is essential for low-resistance, high-transparency films.

Publication types

Research Support, Non-U.S. Gov't

MeSH terms

Microscopy, Electron, Transmission
Nanotechnology / methods
Nanowires / chemistry*
Nanowires / ultrastructure
Silver / chemistry*
Surface Properties

Substances

Silver