Controlled Inkjetting of a Conductive Pattern of Silver Nanoparticles Based on the Coffee‐Ring Effect

Abstract

Conductive patterns with line widths of 5-10 µm are successfully fabricated by utilizing the coffee-ring effect in inkjet printing, resulting in transmittance values of up to 91.2% in the visible to near-infrared region. This non-lithographic approach broadens the range of fabrication procedures that can be used to create various nanoparticle-based microstructures and electronic devices.

Ink-Jet Printed CMOS Electronics from Oxide Semiconductors

“…Ink-jet is a digital printing technique and extremely suitable for a large variety of functional inks, earlier reports have shown excellent quality of printed layers from different precursors or nanoparticulate inks. [28][29][30] The printed oxide precursors were dried at 150 °C for 2-3 min and subsequently annealed with a single annealing step in air at 400 °C for 2 h. The annealing temperature was far more than necessary for the In 2 O 3 precursor (see Figure 1 ), however, for the sake of one step heating, such high annealing temperature was chosen as it was required for the CuO precursor. Nonetheless, the relatively high annealing temperature facilitated signifi cant grain growth and excellent fi lm quality of the NMOS, which at the end was translated into superior electrical performance.…”

Inkjet Printed Conductive Tracks for Printed Electronics

“…Schematic illustration of inkjet printing of silver-nanoparticle patterns induced by the coffee-ring effect, SEM image of the printed coffee line and the printed coffee line rim, optical image and transmittance of the glass substrate with the reticular conductive pattern. 94 with the current semiconductor processes, smaller feature sizes are required for device fabrication. 98 Commercially available inkjet printing systems produce droplets in accordance to the nozzle size with a resolution of 20-30 μm.…”

“…8), with enhanced coffee rings by adjusting substrate wettability. 94 The printed rings assembly form a network composed of highly conductive silver rings and create a nearly transparent conductive thin film.…”

Controllable synthesis and sintering of silver nanoparticles for inkjet-printed flexible electronics

“…In order to overcome these obstacles, following our previous study on AgNPs synthesis and printed electronics [39,40], we here introduced a facile and efficient strategy to fabricate flexible conductive electronics directly on poly(ethyleneterephthalate) (PET) substrates by tuning the surface characters of AgNPs. In this work, a series of uniform and ultra-small AgNPs were successfully synthesized with alkylamines as capped molecules.…”