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Omnidirectional color wavelength tuning of stretchable chiral liquid crystal elastomers SCIE SCOPUS

Title
Omnidirectional color wavelength tuning of stretchable chiral liquid crystal elastomers
Authors
SEUNGMIN, NAMWontae, JungSHIN, JUN HYUKCHOI, SU SEOK
Date Issued
2024-05
Publisher
Nature Publishing Group
Abstract
Wavelength-tunable structural colors using stimuli-responsive materials, such as chiral liquid crystals (CLCs), have attracted increasing attention owing to their high functionality in various tunable photonic applications. Ideally, on-demand omnidirectional wavelength control is highly desirable from the perspective of wavelength-tuning freedom. However, despite numerous previous research efforts on tunable CLC structural colors, only mono-directional wavelength tuning toward shorter wavelengths has been employed in most studies to date. In this study, we report the ideally desired omnidirectional wavelength control toward longer and shorter wavelengths with significantly improved tunability over a broadband wavelength range. By using areal expanding and contractive strain control of dielectric elastomer actuators (DEAs) with chiral liquid crystal elastomers (CLCEs), simultaneous and omnidirectional structural color-tuning control was achieved. This breakthrough in omnidirectional wavelength control enhances the achievable tuning freedom and versatility, making it applicable to a broad range of high-functional photonic applications. © The Author(s) 2024.
URI
https://oasis.postech.ac.kr/handle/2014.oak/123607
DOI
10.1038/s41377-024-01470-w
ISSN
2095-5545
Article Type
Article
Citation
Light: Science & Applications, vol. 13, no. 1, page. 114, 2024-05
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최수석CHOI, SU SEOK
Dept of Electrical Enginrg
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