Structural Color Palettes of Core–Shell Photonic Ink Capsules Containing Cholesteric Liquid Crystals

Photonic microcapsules with onion‐like topology are microfluidically designed to have cholesteric liquid crystals with opposite handedness in their core and shell. The microcapsules exhibit structural colors caused by dual photonic bandgaps, resulting in a rich variety of color on the optical palett...

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Veröffentlicht in:Advanced materials (Weinheim) 2017-06, Vol.29 (23), p.n/a
Hauptverfasser: Lee, Sang Seok, Seo, Hyeon Jin, Kim, Yun Ho, Kim, Shin‐Hyun
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Kim, Yun Ho
Kim, Shin‐Hyun
description Photonic microcapsules with onion‐like topology are microfluidically designed to have cholesteric liquid crystals with opposite handedness in their core and shell. The microcapsules exhibit structural colors caused by dual photonic bandgaps, resulting in a rich variety of color on the optical palette. Moreover, the microcapsules can switch the colors from either core or shell depending on the selection of light‐handedness. Photonic microcapsules with onion‐like topology are microfluidically designed to have cholesteric liquid crystals with opposite handedness in their core and shell. The microcapsules exhibit structural colors caused by dual photonic bandgaps, resulting in a rich variety of color on the optical palette. Moreover, the microcapsules can switch the colors from either core or shell depending on the selection of light‐handedness.
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source Wiley Online Library Journals Frontfile Complete
subjects Cholesteric liquid crystals
Color
core–shell capsules
Energy gap
Handedness
handedness of light
Liquid crystals
microfluidics
Photonic band gaps
Photonic crystals
Topology
triple‐emulsion drops
title Structural Color Palettes of Core–Shell Photonic Ink Capsules Containing Cholesteric Liquid Crystals
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