Hydrogen‐Bonded Cholesteric Liquid Crystals—A Modular Approach Toward Responsive Photonic Materials. Issue 5 (22nd February 2022)

• Record Type: Journal Article
• Authors: Malotke, Florian; Spengler, Matthias; Pschyklenk, Lukas; Saccone, Marco; Kaul, Peter; Giese, Michael
• Is Part Of: Advanced photonics research. Volume 3:Issue 5(2022)
• Page Start: n/a
• Page End: n/a
• Publication Date: 2022-02-22
• Subjects: chemosensing -- cholesteric phase -- halogen bonding -- hydrogen bonding -- photonic sensing -- supramolecular liquid crystals -- thermosensing; Photonics -- Periodicals; 621.36505
• DOI: 10.1002/adpr.202100353
• Languages: English
• ISSNs: 2699-9293

Abstract

Abstract : A supramolecular approach for photonic materials based on hydrogen‐bonded cholesteric liquid crystals is presented. The modular toolbox of low‐molecular‐weight hydrogen‐bond donors and acceptors provides a simple route toward liquid crystalline materials with tailor‐made thermal and photonic properties. Initial studies reveal broad application potential of the liquid crystalline thin films for chemo‐ and thermosensing. The chemosensing performance is based on the interruption of the intermolecular forces between the donor and acceptor moieties by interference with halogen‐bond donors. Future studies will expand the scope of analytes and sensing in aqueous media. In addition, the implementation of the reported materials in additive manufacturing and printed photonic devices is planned. Abstract : Hydrogen‐bonded liquid crystals (HB LCs) serve as an easy‐to‐prepare approach for photonic sensing applications. The stimulus‐response reported can be adjusted by exchanging one building block of the assembly. Varying the composition ratio of the building blocks allows fine‐tuning of the material's properties.