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(a) Fabrication process. (1) Hydrophobic coating of the glass surface to avoid metal deposition. (2) Modified photopolymerizable resin is dropped onto the substrate, (3) Microfabrication by TPP. (4) Removal of unsolidified resin, (5) surface pretreatment to improve metal deposition. (6) Silver coating by EP. (7) Washing of the sample. (b) SEM images of 2D polymer structures selectively coated with small silver grains.
(a) 45° tilted SEM image of a silver coated polymer structure composed of a cube ( in size) holding up a spring (inner diameter ). (b) Large view of multiple structures written in parallel. (c) Side view of an individual structure. (d) Energy dispersive x-ray (EDX) spectrum and EDX image recorded at the main Ag peak energy.
(a) SEM images of long narrow coated lines used for resistivity measurements. (b) Resistance as a function of line length (with constant width ) for different concentrations and theoretical bulk silver curve.
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