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)

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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

Funding

This research received funding from The Netherlands Organisation for Scientific Research (NWO) in the framework of the Innovation Fund Chemistry and from the Dutch Ministry of Economic Affairs and Climate Policy in the framework of the PPP allowance. The project is also supported by the European Research Council (ERC) Starting Grant (project number 802929-ChemLife), Science Foundation Ireland (SFI), and European Regional Development Fund (ERDF) under grant number 12/RC/2278_P2. The TPP-DLW fabrication and some of the imaging for this project was carried out at the Additive Research Laboratory (AR-Lab) and the Advanced Microscopy Laboratory (AML), Trinity College Dublin, Ireland. The AR-Lab and AML are SFI supported centers, part of the CRANN Institute and affiliated to the AMBER center. This research received funding from The Netherlands Organisation for Scientific Research (NWO) in the framework of the Innovation Fund Chemistry and from the Dutch Ministry of Economic Affairs and Climate Policy in the framework of the PPP allowance. The project is also supported by the European Research Council (ERC) Starting Grant (project number 802929-ChemLife), Science Foundation Ireland (SFI), and European Regional Development Fund (ERDF) under grant number 12/RC/2278_P2. The TPP-DLW fabrication and some of the imaging for this project was carried out at the Additive Research Laboratory (AR-Lab) and the Advanced Microscopy Laboratory (AML) Trinity College Dublin, Ireland. The AR-Lab and AML are SFI supported centers, part of the CRANN Institute and affiliated to the AMBER center.

FundersFunder number
CRANN Institute
Dutch Ministry of Economic Affairs and Climate Policy
Horizon 2020 Framework Programme802929
European Research Council
Science Foundation Ireland - SFI
Trinity College Dublin
Nederlandse Organisatie voor Wetenschappelijk Onderzoek
European Regional Development Fund12/RC/2278_P2
Ministerie van Economische Zaken en Klimaat

    Keywords

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

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