Bio-inspired thermal-responsive inverse opal films with dual structural colors based on liquid crystal elastomer
Bio-inspired thermal-responsive inverse opal films with dual structural colors based on liquid crystal elastomer
复制标题
基于液晶弹性体的双结构色仿生热响应反蛋白石薄膜
DOI:
10.1039/c5tc00548e
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发表时间:
2015-04
影响因子:
6.4
通讯作者:
Wei Jie
中科院分区:
文献类型:
--
作者:
Xing Huihui;Li Jun;Guo Jinbao;Wei Jie
We have developed a bio-inspired thermal-responsive micropatterned inverse opal film with dual structural colors based on liquid crystal elastomers (LCEs). Herein, inverse opal films are fabricated by infiltrating the LC precursor into silica opal photonic crystal templates followed by UV irradiation and then removing the silica spheres. Furthermore, the micropatterned inverse opal films with dual structural colors have been fabricated by a two-step photo-polymerization technique combining a DC electric field. The DC electric field is used to tune the lattice space of the silica opal templates at the second photo-polymerization stage. In addition, the photonic band gaps of the LCE inverse opal films with dual structural colors can be reversibly switched by temperature because of the thermally induced molecular orientation change of the LCEs. This approach to create bi-colored inverse opals with micropatterns opens up a new way to the development of display and photonic applications.
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