Pd hexadecanethiolate and Pd butanethiolate precursors as well as single-walled carbon nanotubes (SWCNTS) functionalized with single-strand DNA (ssDNA) were patterned using inkjet printing techniques to form metallic Pd interconnects upon thermolysis and circuit elements, respectively. Issues involved with printing these materials were addressed and overcome. Patterns with lateral dimensions of ≈50 μm were produced. The surface morphology of the Pd interconnects was examined using SEM. By printing 4-probe pattern of Pd alkanethiolates, the resistance as a function precursor concentration was determined, allowing estimates for the resistivity of the printed interconnects. A line trace containing an aqueous suspension of SWCNTs-ssDNA was inkjet printed for resistivity estimates and contacted with Pd pads.
W. Boley, T. Bhuvana, B. Hines, Robert A. Sayer, G. Chiu, T.S. Fisher, D. Bergstrom, R. Reifenberger, G.U. Kulkarni, "Inkjet Printing Involving Palladium Alkanethiolates and Carbon Nanotubes Functionalized with Single-Strand DNA" in Proc. IS&T Int'l Conf. on Digital Printing Technologies and Digital Fabrication (NIP25), 2009, pp 824 - 827, https://doi.org/10.2352/ISSN.2169-4451.2009.25.1.art00113_2