Nanocomposite polymer carbon-black coating for triggering pyro-electrohydrodynamic inkjet printing

S. Coppola, L. Mecozzi, V. Vespini, L. Battista, S. Grilli, G. Nenna, F. Loffredo, F. Villani, C. Minarini, P. Ferraro

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Abstract

The pyro-electrohydrodynamic (EHD) manipulation of liquids has been discovered and demonstrated recently as a high resolution printing technique avoiding the use of nozzles and external electrodes. The activation of the pyro-electric effect is usually achieved on ferroelectric crystals by an external heating source or by an infrared laser. Here, we show an original modality for triggering the pyro-EHD process through a light-absorbing polymer nanocomposite thin layer deposited on the ferroelectric substrate, thus overcoming some limitations of the previous configuration. Significant simplification and compactness of the set-up is achieved thanks to the nanocomposite coating, since a commercial low-cost white-light halogen lamp can be adopted to trigger the pyro-jetting process from a liquid reservoir. Remarkably, high resolution is achieved in dispensing very high viscous liquids. Practical demonstrations in polymer optical microlenses direct printing using polydimethylsiloxane and poly(methyl methacrylate) are finally reported to validate the approach in handling high-viscous polymers for practical applications.
Original languageEnglish
Article number261603
Pages (from-to)-
JournalApplied Physics Letters
Volume106
Issue number26
DOIs
Publication statusPublished - 29 Jun 2015
Externally publishedYes

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All Science Journal Classification (ASJC) codes

  • Physics and Astronomy (miscellaneous)

Cite this

Coppola, S., Mecozzi, L., Vespini, V., Battista, L., Grilli, S., Nenna, G., Loffredo, F., Villani, F., Minarini, C., & Ferraro, P. (2015). Nanocomposite polymer carbon-black coating for triggering pyro-electrohydrodynamic inkjet printing. Applied Physics Letters, 106(26), -. [261603]. https://doi.org/10.1063/1.4923469