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Supramolecular Photonic Elastomers with Brilliant Structural Colors and Broad‐Spectrum Responsiveness
Author(s) -
Li Miaomiao,
Tan Haiying,
Jia Lizhen,
Zhong Rui,
Peng Bolun,
Zhou Jiacheng,
Xu Jiangping,
Xiong Bijin,
Zhang Lianbin,
Zhu Jintao
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.202000008
Subject(s) - materials science , structural coloration , elastomer , photonics , supramolecular chemistry , broad spectrum , polymer , nanoparticle , visible spectrum , nanotechnology , stopband , optoelectronics , composite material , photonic crystal , molecule , organic chemistry , resonator , chemistry , combinatorial chemistry
Photonic elastomers (PEs) that can tune their colors through adjusting the lattice spacing of incorporated colloidal particles during mechanical deformation have shown great promise in visualized strain/stress sensors. However, the unsatisfactory structural color and narrow‐spectrum responsiveness limit their broad applications. Herein, carbon‐coated Fe 3 O 4 nanoparticles (Fe 3 O 4 @C NPs) with a high refractive index (RI) and broad light absorption are employed for the construction of PEs with brilliant colors and broad‐spectrum responsiveness by incorporating the Fe 3 O 4 @C NPs into amino‐terminated poly(dimethylsiloxane) (amino‐PDMS) polymer through supramolecular interactions. The inherent light‐absorbing property, high RI, and supramolecular‐induced short‐range ordered arrangement of Fe 3 O 4 @C NPs imparts the PEs with brilliant and angle‐independent structural color. By optimizing the content of Fe 3 O 4 @C NPs in the PEs, broad‐spectrum responsiveness (stopband shifting ≈223 nm) and excellent recovery properties under a large strain can be achieved. The dynamic and reversible interaction endows the PEs with a healable capability. More interestingly, the incorporated Fe 3 O 4 @C NPs with photothermal capability can effectively absorb light and convert it into heat under light irradiation (solar light or near‐infrared laser), accelerating healing of the damaged PEs. This study provides a new strategy for bioinspired construction of PEs for applications in the fields of sensing, colorful coating, and display.