Chemical Research in Chinese Universities ›› 2017, Vol. 33 ›› Issue (4): 525-529.doi: 10.1007/s40242-017-6310-z

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Facile and Convenient Fabrication of Color-controlled Colloidal Magnetically Assembled Photonic Crystals

YOU Aimei, CAO Yuhua, CAO Guangqun   

  1. Key Laboratory of Food Colloids and Biotechnology, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi 214122, P. R. China
  • Received:2016-07-21 Revised:2016-08-27 Online:2017-08-01 Published:2016-09-19
  • Contact: CAO Yuhua E-mail:yuhuacao64@gmail.com
  • Supported by:

    Supported by the National Natural Science Foundation of China(Nos.21405133,21774056).

Abstract:

A facile, convenient and flexible method to tune the structural color of the colloidal magnetically assembled photonic crystals(CMA-PCs) was proposed. The mechanism to tune structural color could be attributed to the significant influence of the surfactant sodium dodecyl sulfate(SDS) concentration on the particle size, especially on the magnetite content of the superparamagnetic composite nanoparticles(MCNPs). By adjusting SDS concentration in miniemulsion polymerization of MCNPs, CMA-PCs with desired diffraction colors could be obtained.

Key words: Controllable structural color, Colloidal magnetically assembled photonic crystal, Miniemulsion polymerization