Publication

Drop-on-Demand Inkjet Printing of Functional Composites

Thomas Maeder
2017
Posters

Abstract

Drop-on-Demand Inkjet printing can be used as an effective technique to deposit the sensing layer in chemical sensors. However, formulation of inks containing functional materials remains challenging due to rheological constraints imposed by the inkjet printer. Here, we show a systematic process to formulate and print functional inks containing polymer and carbon black (CB) particles. The functional ink is used for sensing different analytes considering the polarity of the polymer1,2. We formulated inks containing polyvinylpyrrolidone (PVP) with the molecular weight of 40 kDa and 360 kDa. We used high-structured carbon black as the conductive filler. Printing parameters were optimized and the polymer composite was printed on the sensor platform with screen printed interdigitated electrode (IDE). The ink showed good stability over time and no sedimentation was observed even weeks after the formulation. In the next step we characterize the sensing behavior of the printed campsites.

Official source

https://infoscience.epfl.ch/entities/publication/5b6e19fd-da4f-4eb0-9091-d650660be8fd

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Thomas Maeder
2017
Posters

Abstract

Official source

https://infoscience.epfl.ch/entities/publication/5b6e19fd-da4f-4eb0-9091-d650660be8fd

About this result

Related concepts (32)

Inkjet printing

Inkjet printing is a type of computer printing that recreates a by propelling droplets of ink onto paper and plastic substrates. Inkjet printers were the most commonly used type of printer in 2008, and range from small inexpensive consumer models to expensive professional machines. By 2019, laser printers outsold inkjet printers by nearly a 2:1 ratio, 9.6% vs 5.1% of all computer peripherals.As of 2023, sublimation printers have outsold inkjet printers by nearly a 2:1 ratio, accounting for 9.

Printing

Printing is a process for mass reproducing text and images using a master form or template. The earliest non-paper products involving printing include cylinder seals and objects such as the Cyrus Cylinder and the Cylinders of Nabonidus. The earliest known form of printing as applied to paper was woodblock printing, which appeared in China before 220 AD for cloth printing. However, it would not be applied to paper until the seventh century.

Carbon black

Carbon black (subtypes are acetylene black, channel black, furnace black, lamp black and thermal black) is a material produced by the incomplete combustion of coal and coal tar, vegetable matter, or petroleum products, including fuel oil, fluid catalytic cracking tar, and ethylene cracking in a limited supply of air. Carbon black is a form of paracrystalline carbon that has a high surface-area-to-volume ratio, albeit lower than that of activated carbon.

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