Bio-Organic Chiral Nematic Materials with Adaptive Light Emission and On-Demand Handedness
- Authors
- Kang, Saewon; Li, Yingying; Bukharina, Daria; Kim, Minkyu; Lee, Hansol; Buxton, Madeline L.; Han, Moon Jong; Nepal, Dhriti; Bunning, Timothy J.; Tsukruk, Vladimir V.
- Issue Date
- Sep-2021
- Publisher
- WILEY-V C H VERLAG GMBH
- Keywords
- chiral emission; chiral nematic materials; dynamic chirality; optically-active bio-nanocomposites; reversible handednesses
- Citation
- ADVANCED MATERIALS, v.33, no.38
- Journal Title
- ADVANCED MATERIALS
- Volume
- 33
- Number
- 38
- URI
- https://scholarworks.bwise.kr/gachon/handle/2020.sw.gachon/89432
- DOI
- 10.1002/adma.202103329
- ISSN
- 0935-9648
- Abstract
- Real-time active control of the handedness of circularly polarized light emission requires sophisticated manufacturing and structural reconfigurations of inorganic optical components that can rarely be achieved in traditional passive optical structures. Here, robust and flexible emissive optically-doped biophotonic materials that facilitate the dynamic optical activity are reported. These optically active bio-enabled materials with a chiral nematic-like organization of cellulose nanocrystals with intercalated organic dye generated strong circularly polarized photoluminescence with a high asymmetric factor. Reversible phase-shifting of the photochromic molecules intercalated into chiral nematic organization enables alternating circularly polarized light emission with on-demand handedness. Real-time alternating handedness can be triggered by either remote light illumination or changes in the acidic environment. This unique dynamic chiro-optical behavior presents an efficient way to design emissive bio-derived materials for dynamic programmable active photonic materials for optical communication, optical coding, visual protection, and visual adaptation.
- Files in This Item
- There are no files associated with this item.
- Appears in
Collections - ETC > 1. Journal Articles
![qrcode](https://api.qrserver.com/v1/create-qr-code/?size=55x55&data=https://scholarworks.bwise.kr/gachon/handle/2020.sw.gachon/89432)
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.