Inkjet printing of dielectric layers with high relative permittivity for digital microfluidics

Schoenfelder T, Kemper F, Pohle L, Reif M, Tienken M, Beckert E, Tuennermann A (2021)

Publication Type: Conference contribution

Publication year: 2021

Journal

Progress in Biomedical Optics and Imaging - Proceedings of SPIE

Publisher: SPIE

Book Volume: 11637

Conference Proceedings Title: Progress in Biomedical Optics and Imaging - Proceedings of SPIE

Event location: Virtual, Online, USA

ISBN: 9781510641099

DOI: 10.1117/12.2578507

Abstract

Digital microfluidics (DMF) is an emerging technology for liquid-handling of picoliter-to microliter-sized droplets. It enables individual control over droplets by applying electrical fields to an array of electrodes. Standard DMF devices include four key components: substrates, electrodes, a dielectric layer and hydrophobic layers. This work outlines the fabrication of dielectric layers with a high relative permittivity by inkjet printing. The layers consists of OrmoComp, silver nanoparticles and different solvents. OrmoComp has a relative permittivity of about 2.5. By adding 24.2 vol% of silver nanoparticles the relative permittivity rises to 76. Thereby the operating voltage can be reduced drastically.

Involved external institutions

Fraunhofer-Institut für Angewandte Optik und Feinmechanik (IOF) / Fraunhofer Institute for Applied Optics and Precision Engineering DE Germany (DE) Friedrich-Schiller-Universität Jena DE Germany (DE)

How to cite

APA:

Schoenfelder, T., Kemper, F., Pohle, L., Reif, M., Tienken, M., Beckert, E., & Tuennermann, A. (2021). Inkjet printing of dielectric layers with high relative permittivity for digital microfluidics. In Bonnie L. Gray, Holger Becker (Eds.), Progress in Biomedical Optics and Imaging - Proceedings of SPIE. Virtual, Online, USA: SPIE.

MLA:

Schoenfelder, T., et al. "Inkjet printing of dielectric layers with high relative permittivity for digital microfluidics." Proceedings of the Microfluidics, BioMEMS, and Medical Microsystems XIX 2020, Virtual, Online, USA Ed. Bonnie L. Gray, Holger Becker, SPIE, 2021.

BibTeX: Download