The implementation of tunable structural colors based on liquid crystal networks by using two-photon polymerization

Shou-Chung Lu; Wei-Ting Hsu; Yu-Wei Cheng; Yu-Chieh Cheng

doi:10.1117/12.3027843

4 October 2024 The implementation of tunable structural colors based on liquid crystal networks by using two-photon polymerization

Shou-Chung Lu, Wei-Ting Hsu, Yu-Wei Cheng, Yu-Chieh Cheng

Author Affiliations +

Proceedings Volume 13116, Nanoengineering: Fabrication, Properties, Optics, Thin Films, and Devices XXI; 131160C (2024) https://doi.org/10.1117/12.3027843
Event: Nanoscience + Engineering, 2024, San Diego, California, United States

Conference Poster

Abstract

Scientists have conducted studies for replicating structural color, characterized by bright and vivid colors that arise from colorless micro- or nano-structures. The periodic nanostructures, known as photonic crystals, found in particular creatures in nature have been studied for their ability to achieve structural colors. However, the complex architecture and structure of photonic crystals with structural light present significant fabrication challenges to mimic these vivid colors. Recent research has discovered that a single nanopillar can produce colors through Mie resonance, which makes it possible to create ultra-high-resolution colored structural light through the patterning of nano-sized pillars. However, these fabricated nanopillars present the given colors. In other words, predetermined designs is lack of the tuning function. Here, we show a method based on two-photon polymerization to realize 3D printed nano-pillar structures of Liquid Crystal Networks (LCN). This material undergoes shape changes in response to light or temperature variations, allowing for a tunable full-color palette, achieving nano-scale, high-resolution color-changing patterns.

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

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Shou-Chung Lu, Wei-Ting Hsu, Yu-Wei Cheng, and Yu-Chieh Cheng "The implementation of tunable structural colors based on liquid crystal networks by using two-photon polymerization", Proc. SPIE 13116, Nanoengineering: Fabrication, Properties, Optics, Thin Films, and Devices XXI, 131160C (4 October 2024); https://doi.org/10.1117/12.3027843

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