access icon free Resistivity and optical transmittance dependence on length and diameter of nanowires in silver nanowire layers in application to transparent conductive coatings

Optical absorption spectra and electrical conductivity of silver nanowires with mean diameters of 56, 73, and 106 nm and mean length of 10.4, 12.6, and 32.0 µm, respectively have been experimentally studied. The size dependent effective permittivity of silver nanowire layers is calculated using mixing equations as for anisotropic materials according to the Maxwell-Garnett theory. The absorption spectra peak positions of nanowires with various diameters are interpreted according to the theoretical calculations based on the Mie theory, which allow to predict dependence of the optical properties on the nanowire diameter. The sheet resistance measurements show that 13–15 Ω/sq at the level of 80–90% transmittance at 550 nm wavelength can be achieved.

Inspec keywords: nanowires; ultraviolet spectra; permittivity; infrared spectra; visible spectra; electrical resistivity; electromagnetic wave scattering; silver

Other keywords: Ag; size 10.4 mum to 32 mum; nanowires length; optical transmittance dependence; transparent conductive coatings; electrical conductivity; resistivity; nanowires diameter; Maxwell-Garnett theory; mixing equations; absorption spectra peak positions; silver nanowire layers; Mie theory; size 56 nm to 106 nm; size dependent effective permittivity; sheet resistance measurements; anisotropic materials; optical absorption spectra

Subjects: Visible and ultraviolet spectra of metals, semimetals, and alloys; Electrical properties of metals and metallic alloys (thin films, low-dimensional and nanoscale structures); Dielectric permittivity; Infrared and Raman spectra in metals; Optical properties of metals and metallic alloys (thin films, low-dimensional and nanoscale structures)

http://iet.metastore.ingenta.com/content/journals/10.1049/mnl.2015.0582
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