Spray Deposition of Highly Transparent, Low‐Resistance Networks of Silver Nanowires over Large Areas

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.