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A Novel Method for Fixing the Anisotropic Orientation of Dispersed Organic Nanocrystals in a Magnetic Field
Author(s) -
Kaneko Y.,
Shimada S.,
Fukuda T.,
Kimura T.,
Yokoi H.,
Matsuda H.,
Onodera T.,
Kasai H.,
Okada S.,
Oikawa H.,
Nakanishi H.
Publication year - 2005
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.200400275
Subject(s) - materials science , anisotropy , nanocrystal , monomer , acrylate , magnetic field , refractive index , curing (chemistry) , nonlinear optical , natural rubber , chemical engineering , optoelectronics , nanotechnology , composite material , optics , polymer , nonlinear system , physics , engineering , quantum mechanics
Fixing of the anisotropic orientation of DAST nanocrystals , trans ‐4‐[4‐(dimethylamino)]stilbazolium p ‐toluenesulfonate, a well‐known organic second‐order nonlinear optical material, is described. The DAST nanocrystals were oriented in an acrylate monomer by an applied magnetic field and then immobilized by UV‐curing. The optical anisotropy of the absorption and refractive index of the obtained solid—which is odorless, transparent, heat resistant, insoluble, and soft, like rubber—is shown to be easily controlled by the magnetic field. See also front cover.