Direct Laser Writing of Four-Dimensional Structural Color Microactuators Using a Photonic Photoresist

Marc del Pozo Puig, Colm Delaney, Cees W.M. Bastiaansen, Dermot Diamond, Albert P.H.J. Schenning (Corresponding author), Larisa Florea (Corresponding author)

Research output: Contribution to journalArticleAcademicpeer-review

12 Citations (Scopus)
15 Downloads (Pure)

Abstract

With the advent of direct laser writing using two-photon polymerization, the generation of high-resolution three-dimensional microstructures has increased dramatically. However, the development of stimuli-responsive photoresists to create four-dimensional (4D) microstructures remains a challenge. Herein, we present a supramolecular cholesteric liquid crystalline photonic photoresist for the fabrication of 4D photonic microactuators, such as pillars, flowers, and butterflies, with submicron resolution. These micron-sized features display structural color and shape changes triggered by a variation of humidity or temperature. These findings serve as a roadmap for the design and creation of high-resolution 4D photonic microactuators.
Original languageEnglish
Pages (from-to)9832-9839
Number of pages8
JournalACS Nano
Volume14
Issue number8
DOIs
Publication statusPublished - 25 Aug 2020

Keywords

  • direct laser writing
  • two-photon polymerization
  • cholesteric liquid crystal networks
  • photonic photoresist
  • dynamic structural color
  • four-dimensional photonic microactuators

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