Y.Y. thanks the University of California, Riverside, for start-up funds and Dr. C. K. Erdonmez for helpful discussions. We thank Prof. W. P. Beyermann and Dr. M. Biasini for help with magnetic-property measurements and Dr. Bozhilov and Mr. McDaniel at the Central Facility for Advanced Microscopy and Microanalysis at UCR for assistance with TEM analysis.
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Communication
Highly Tunable Superparamagnetic Colloidal Photonic Crystals†
Article first published online: 3 JUL 2007
DOI: 10.1002/anie.200701992
Copyright © 2007 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
Additional Information
How to Cite
Ge, J., Hu, Y. and Yin, Y. (2007), Highly Tunable Superparamagnetic Colloidal Photonic Crystals. Angew. Chem. Int. Ed., 46: 7428–7431. doi: 10.1002/anie.200701992
- †
Publication History
- Issue published online: 20 SEP 2007
- Article first published online: 3 JUL 2007
- Manuscript Received: 4 MAY 2007
Funded by
- University of California, Riverside
Keywords:
- colloids;
- magnetic properties;
- nanostructures;
- photonic crystals
Tuning crystal: Superparamagnetic nanocrystal clusters can self-assemble into colloidal photonic crystals in solution, whose stop bands can be magnetically tuned across the entire visible spectrum. Owing to the high magnetization and the highly charged polyacrylate-capped surface of each cluster, the colloidal photonic crystals show a rapid, reversible, and widely tunable optical response to external magnetic fields.