Inkjet Printing of Silver Nanowire Networks

Abstract

The development of printed electronics will require the ability to deposit a wide range of nanomaterials using printing techniques. Here we demonstrate the controlled deposition of networks of silver nanowires in well-defined patterns by inkjet printing from an optimized isopropyl alcohol-diethylene glycol dispersion. We find that great care must be taken while producing the ink and during solvent evaporation. The resultant networks have good electrical properties, displaying sheet resistances as low as 8 Ω/□ and conductivities as high as 10(5) S/m. Such optimized performances were achieved for line widths of 1-10 mm and network thicknesses of 0.5-2 μm deposited from ∼10-20 passes while using processing temperatures of no more than 110 °C. Thin networks are semitransparent with dc to optical conductivity ratios of ∼40.

Precise percolation thresholds of two-dimensional random systems comprising overlapping ellipses

“…[7][8][9][10]) and one-dimensional fiber-like nanostructure (carbon nanotubes, metal nanowires, etc. [11][12][13]), extends the interest in overlapping ellipse systems to many practical applications. Like ellipsoids in three-dimensional (3D) systems [14], ellipses represent the general object shape in 2D systems, ranging from extremely anisotropic fibers or rods to isotropic disks.…”

Low-Cost Printed Flexible Antenna by Using an Office Printer for Conformal Applications

“…To reduce the cost of these IoT devices, there is a dire need of a low-cost fabrication process. The production of low-cost devices is being revolutionized by the invention of inkjet printing of functional materials like polymers/nanocomposites, carbon nanotubes, graphene, and most recently molybdenum disulfide (MoS 2 ) nanosheets [2]. These materials are being used to fabricate transistors, antennas, sensors, light-emitting diodes, and many other printable devices [3].…”

Surface coatings of silver nanowires lead to effective, high conductivity, high-strain, ultrathin sensors

“…As an alternative material, silver nanowires (AgNWs) have been of great interest [25][26][27][28][29][30][31][32][33][34][35][36][37][38] due to the ability to form highly conductive percolative networks. [38][39][40][41] AgNW based sensing composite materials, formed exclusively by layer deposition, consist of a percolative network of the nanowires adhered to a flexible polymer substrate. Similar to carbon nanotube (CNT)…”