A bifacial colour-tunable system: Via combination of a cholesteric liquid crystal network and hydrogel

Owies M. Wani (Corresponding author), Albertus P.H.J. Schenning, Arri Priimagi (Corresponding author)

Research output: Contribution to journalArticleAcademicpeer-review

12 Citations (Scopus)

Abstract

We present a colour tunable system obtained by combining a humidity-responsive cholesteric liquid crystal network and hydrogel coatings, in a diligently designed cell-geometry. The design enables sensitive colour tuning via temperature-induced changes in humidity inside the cell. Uniquely, the system exhibits a bifacial response, causing either a blue- or red-shift in the reflected color when heated from opposite sides.

Original languageEnglish
Pages (from-to)10191-10196
Number of pages6
JournalJournal of Materials Chemistry C
Volume8
Issue number30
DOIs
Publication statusPublished - 14 Aug 2020

Funding

The work is part of the Academy of Finland Flagship Programme, Photonics Research and Innovation (PREIN), decision number 320165. The work is supported by the European Research Council (ERC Starting Grant Project PHOTOTUNE, Agreement No. 679646).

FundersFunder number
Horizon 2020 Framework Programme679646
European Research Council
Academy of Finland320165

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