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Humidity‐Responsive Blue Phase Liquid‐Crystalline Film with Reconfigurable and Tailored Visual Signals
Author(s) -
Hu Wei,
Sun Jian,
Wang Qian,
Zhang Lanying,
Yuan Xiaotao,
Chen Feiwu,
Li Kexuan,
Miao Zongcheng,
Yang Dengke,
Yu Haifeng,
Yang Huai
Publication year - 2020
Publication title -
advanced functional materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 6.069
H-Index - 322
eISSN - 1616-3028
pISSN - 1616-301X
DOI - 10.1002/adfm.202004610
Subject(s) - materials science , mesogen , fabrication , nanotechnology , nanostructure , liquid crystal , liquid crystalline , polymer , phase (matter) , optoelectronics , composite material , organic chemistry , medicine , chemistry , alternative medicine , pathology
Liquid‐crystalline polymers have been applied to a wide variety of stimuli‐responsive materials; however, the inevitable mesogenic alignment or extra complicated preparation hinders their further application and large‐scale fabrication. Here, fabrication of free‐standing blue phase liquid‐crystalline (BPLC) film is reported by using one well‐designed system composed of specially designed hydrogen‐bonded mesogenic precursors, which can spontaneously self‐assemble into 3D nanostructures without additional orientation treatment. Upon corrosion in alkaline solution, the BPLC film shows reversible humidity‐responsive behaviors by manipulating their lattice parameters of the nanostructures. The unique stimuli‐responsive behaviors originate from tunable 3D periodic nanostructures of soft materials are reprogrammable, reconfigurable, and visual, showing their potentials for advanced applications as sensor, display, and anticounterfeiting.