Abstract
Inkjet-printed functional nanoparticles are actively used in various engineering
applications, including bioelectronic and chemical sensors. To maximize the
functionalities of the nanoparticles, the printed nanoparticles must be
uniformly assembled within the printed micro patterns. However, controlling the
movement of the nanoparticles is challenging as it involves multiple mechanisms
that play important roles. In this work, we propose an experimental methodology
to independently vary the surface charge polarities of the nanoparticles and the
printing substrates. We used this method to study the effect of the
electrostatic forces between the nanoparticles and the substrate on the uniform
assembly of the inkjet-printed nanoparticles during the drying of the inks. We
confirmed that the attractive electrostatic force between the two is crucial in
uniformly distributing the nanoparticles.
Funder
National Research Foundation of Korea
Ministry of Science and ICT
Ministry of Environment
Publisher
Korea Flexible & Printed Electronics Society
Cited by
1 articles.
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