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20 May 2020 Compact setup for SIMO measurements of slab interconnects and correlation with PEDOT:PSS nanostructure morphology
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Abstract
We demonstrate a compact, portable and reliable, poor-man’s 8-channel interconnect and measure, in the 50- 100MHz VHF radiofrequency range, the path-dependent voltage transfer function across drop-cast poly(3,4- ethylenedioxythiophene) polystyrene sulfonate (PEDOT:PSS). The setup may be inexpensively deployed for single-input-multiple-output (SIMO) self-sensing materials with computational impedance tomography algorithms. We test our setup with PEDOT:PSS samples that are dried in a static magnetic field. These samples exhibit anisotropic electrical conductivities and nanostructure morphologies. Voltages across the sample vary 2dB as a result of this anisotropy. This processing-dependent anisotropy of PEDOT:PSS may be useful in future efforts aimed at deconvolving the path-dependent electrical tomography measurements, as necessary for such a sensing system.
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Reid Watanabe, David Nelson, Shaya Nirenberg, and Luat T. Vuong "Compact setup for SIMO measurements of slab interconnects and correlation with PEDOT:PSS nanostructure morphology", Proc. SPIE 11389, Micro- and Nanotechnology Sensors, Systems, and Applications XII, 113892X (20 May 2020); https://doi.org/10.1117/12.2559034
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