Magnetically responsive photonic nanostructures

Band-Gap-Controllable Photonic Crystals Consisting of Magnetic Nanocrystal Clusters in a Solidified Polymer Matrix

Abstract ImageState Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, Changchun 130012, China, State Key Laboratory on Theoretical and Computating Chemistry, Institute of Theoretical Chemistry, Jilin University, Changchun 130012, China, and College of Physics, Jilin University, 119 Jiefang Road, Changchun 130023, China

J. Phys. Chem. C, 2009, 113 (43), pp 5

DOI: 10.1021/jp905871k

* To whom correspondence should be addressed. E-mail: (H.-B.S.), (X.-R.H.)., †

College of Electronic Science and Engineering, Jilin University.

, ‡

Institute of Theoretical Chemistry, Jilin University.

, §

Cover ImageCollege of Physics, Jilin University.



Colloidal photonic crystals (CPhCs) consisting of iron oxide magnetic spheres possess high lattice tunability but are generally unstable and difficult to manage in liquid form. We solve the problem by introducing the colloidal spheres into a resin system, which can “freeze” three-dimensional (3D) patterns by photopolymerization. Robust solid-form CPhCs with various structural colors were, therefore, achieved. The “frozen” 3D patterns would permit not only a systematic exploration on self-assembling dynamics, colloidal crystallography, and PhC physics but also may pave a new application avenue if a solid, but still soft, PhC is shaped or sliced.

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