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Thermally stable molecules with large dipole moments and polarizabilities and applications thereofDisclosed are fused ring bridge, ring-locked dyes that form thermally stable photorefractive compositions. The fused ring bridge structures are .pi.-conjugated bonds in benzene-, naphthalene- or anthracene-derived fused ring systems that connect donor and acceptor groups. The donor and acceptor groups contribute to a high molecular dipole moment and linear polarizability anisotropy. The polarization characteristics of the dye molecules are stabilized since the bonds in the fused ring bridge are not susceptible to rotation, reducing the opportunity for photoisomerization. The dyes are compatible with polymeric compositions, including thermoplastics. The dyes are electrically neutral but have charge transport, electronic and orientational properties such that upon illumination of a composition containing the dye, the dye facilitates refractive index modulation and a photorefractive effect that can be utilized advantageously in numerous applications such as in optical quality devices and biological imaging.
Document ID
20080004996
Acquisition Source
Headquarters
Document Type
Other - Patent
Authors
Marder, Seth R.
Peyghambarian, Nasser
Kippelen, Bernard
Volodin, Boris
Hendrickx, Eric
Date Acquired
August 24, 2013
Publication Date
June 11, 2002
Subject Category
Inorganic, Organic And Physical Chemistry
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
Patent
US-PATENT-6,402,994
Patent Application
US-PATENT-APPL-SN-577314

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