Magnetically Tunable Colloidal Photonic Structures in Alkanol Solutions

Magnetically tunable photonic structures are prepared in alkanol solutions by using silica‐modified superparamagnetic Fe3O4 colloids as building blocks. Repulsive electrostatic and solvation forces and magnetically induced attractive forces contribute to the ordering of the Fe3O4@SiO2 colloids. The...

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Published inAdvanced materials (Weinheim) Vol. 20; no. 18; pp. 3485 - 3491
Main Authors Ge, Jianping, Yin, Yadong
Format Journal Article
LanguageEnglish
Published Weinheim WILEY-VCH Verlag 17.09.2008
WILEY‐VCH Verlag
Subjects
core/shell materials
inorganic nanostructures
magnetic nanoparticles
photonic crystals
stimuli-responsive materials
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Summary:Magnetically tunable photonic structures are prepared in alkanol solutions by using silica‐modified superparamagnetic Fe3O4 colloids as building blocks. Repulsive electrostatic and solvation forces and magnetically induced attractive forces contribute to the ordering of the Fe3O4@SiO2 colloids. The ability to form tunable photonic structures in nonaqueous solutions allows the fabrication of field‐responsive polymer composite films for potential applications as displays and sensors.
Bibliography:istex:56A7A9F9722D24060AD8570754B398122FD316BE
ArticleID:ADMA200800657
Y.Y. thanks the University of California, Riverside for start-up funds and the Regents' Faculty Fellowship support. Dr. C. K. Erdonmez is acknowledged for proof-reading the manuscript. We thank Dr. Bozhilov and Mr. McDaniel at the Central Facility for Advanced Microscopy and Microanalysis at UCR for assistance with TEM analysis. Supporting Information is available online from Wiley InterScience or from the authors.
ark:/67375/WNG-3RWDN28Q-4
University of California, Riverside
Y.Y. thanks the University of California, Riverside for start‐up funds and the Regents' Faculty Fellowship support. Dr. C. K. Erdonmez is acknowledged for proof‐reading the manuscript. We thank Dr. Bozhilov and Mr. McDaniel at the Central Facility for Advanced Microscopy and Microanalysis at UCR for assistance with TEM analysis. Supporting Information is available online from Wiley InterScience or from the authors.
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ISSN:0935-9648
1521-4095
DOI:10.1002/adma.200800657