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Two-dimensional random metal networks possess unique electrical and optical properties, such as almost total optical transparency and low sheet resistance, which are closely related to their disordered structure. Here we present a detailed experimental and theoretical investigation of their plasmonic properties, revealing Anderson (disorder-driven) localized surface plasmon (LSP) resonances of very large quality factors and spatial localization close to the theoretical maximum, which couple to electromagnetic waves. Moreover, they disappear above a geometry-dependent threshold at ca. 1.6 eV in the investigated Au networks, explaining their large transparencies in the optical spectrum.
This data collection includes measurements of different PEDOT:PF6 fiber networks, including their impedance spectrum, transistor measurements, pictures of the networks and their reaction to acoustic/seismic excitation measured with an oscilloscope. The networks were grown in a free-standing liquid film using sulfolane as a solvent, TBAPF6 as a salt and EDOT as a monomer. Fibers were grown using AC electropolymerization and then excited using a custom-made infrasound generator.