Photo-responsive liquid crystal network-based material with adaptive modulus for haptic application.

Journal: Scientific reports
Published Date: Nov 14, 2022

Abstract

Artificially created tactile feedback is in high demand due to fast developments in robotics, remote control in medicine, virtual reality, and smart electronics. Despite significant progress, high-quality haptic feedback devices remain challenging mainly due to the lack of stability and spatiotemporal resolution. In this work, we address these issues by the application of dynamic coatings, based on photo-responsive liquid crystal network (LCN) material. This material adapts upon an external stimulus (UV light with a power intensity of 50-90 mW/cm) that changes its elastic properties (87% decrease of the modulus for 90 mW/cm power intensity of 365 nm UV light). Localized change of adaptive modulus with very high resolution (2 μm) was demonstrated.

Authors

  • Ievgen Kurylo
    Laboratory of Stimuli-Responsive Functional Materials and Devices (SFD), Department of Chemical Engineering and Chemistry, Eindhoven University of Technology, Den Dolech 2, 5612 AZ, Eindhoven, The Netherlands.
  • Joost van der Tol
    Laboratory of Macro-Organic Chemistry, Department of Chemical Engineering and Chemistry, Eindhoven University of Technology, Den Dolech 2, 5612 AZ, Eindhoven, The Netherlands.
  • Nicholas Colonnese
    Meta Reality Labs Research, Redmond, WA, USA.
  • Dirk J Broer
    Institute for Complex Molecular Systems, Eindhoven University of Technology, Eindhoven, the Netherlands. d.broer@tue.nl.
  • Danqing Liu
    Laboratory of Functional Organic Materials and Devices, Department of Chemical Engineering and Chemistry, Eindhoven University of Technology, P.O. Box 513, 5600, MB, Eindhoven, The Netherlands.

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