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Meeting Materials Science & Technology 2020
Symposium 2020 Undergraduate Student Poster Contest
Presentation Title Innovative Preparation Methods of High Performance Magnetically Responsive Photonic Crystals
Author(s) Linxin Huang
On-Site Speaker (Planned) Linxin Huang
Abstract Scope Magnetically responsive photonic crystals self-assemble into crystalline colloidal arrays with the lattice constant adjustable by H. However, they have not been widely used in sensors, color displays and optical camouflage because of their slow response and limited tunability of photonic bandgap. For the first time, we have synthesized monodisperse super-paramagneyic particles by a modified polyol process in the presence of glucose and poly. They show a long-range steric repulsion sufficiently strong to counteract the magnetic attractive force. We then constructed steric repulsion-stabilized MRPCs in diverse organic solvents. The as-built MRPCs in solvents compatible well with PVP show color tunability nearly within the entire visible spectrum and almost independent of the solvent polarity, ionic strength, or pH value, highlighting the advantages for the preparation of polymer-matrix PC composites.

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