Aerosol Dry Printing for SERS and Photoluminescence-Active Gold Nanostructures Preparation for Detection of Traces in Dye Mixtures.

We proposed a novel method of nanostructure preparation for observation of surface-enhanced Raman spectroscopy (SERS) and metal-enhanced fluorescence (MEF) based on the deposition of gold nanoparticles (GNPs) above the thin dye film by dry aerosol printing. We detected various enhanced SERS and MEF signals of films of malachite green (MG) and rhodamine B (RhB) mixtures, depending on the surface packing density of Au NPs on the strip, and found the optimum one to achieve the 3.5 × 10 SERS enhancement.

Synthesis of Nanoparticles by Spark Discharge as a Facile and Versatile Technique of Preparing Highly Conductive Pt Nano-Ink for Printed Electronics.

A cost-effective, scalable and versatile method of preparing nano-ink without hazardous chemical precursors is a prerequisite for widespread adoption of printed electronics. Precursor-free synthesis by spark discharge is promising for this purpose. The synthesis of platinum nanoparticles (PtNPs) using a spark discharge under Ar, N, and air has been investigated to prepare highly conductive nano-ink.

Aerosol Jet Printing of Silver Lines with A High Aspect Ratio on A Heated Silicon Substrate.

In this work, we studied the formation of conductive silver lines with high aspect ratios ( = thickness/width) > 0.1 using the modernized method of aerosol jet printing on a heated silicon substrate. The geometric () and electrical (resistivity) parameters of the formed lines were investigated depending on the number of printing layers (1-10 layers) and the temperature of the substrate (25-300 °C).