Structural Evolution of Self‐Assembling Nanohybrid Thin Films from Functionalized Urea Precursors
Identifieur interne : 009093 ( Main/Exploration ); précédent : 009092; suivant : 009094Structural Evolution of Self‐Assembling Nanohybrid Thin Films from Functionalized Urea Precursors
Auteurs : I. Karatchevtseva [Australie] ; D. Cassidy [Australie] ; M. Wong Hi An [France] ; D. Mitchell [Australie] ; J. Hanna [Australie] ; C. Carcel [France] ; C. Bied [France] ; J. Moreau [France] ; J. Bartlett [Australie]Source :
- Advanced Functional Materials [ 1616-301X ] ; 2007-12-17.
English descriptors
- KwdEn :
- Acidic, Acidic conditions, Adjacent urea groups, Ageing, Ageing time, Aggregate size, Ambient temperature, Amide, Basic conditions, Bied, Bulk materials, Chem, Chiral precursor, Coating solutions, Corresponding bulk materials, Corresponding films, Corresponding increase, Corriu, Film morphology, Ftir, Ftir spectra, Full paper, Funct, Gmbh, Hollow tubes, Hybrid, Hybrid films, Hybrid materials, Hydrolytic condensation, Karatchevtseva, Kgaa, Mater, Moreau, Morphology, Nanohybrid, Noyes publications, Optical images, Oxide electronics, Precursor, Precursor molecules, Primary particles, Same time, Secondary structures, Shear stress, Significant differences, Significant extent, Sol, Specialty shapes, Strong hydrogen, Strong interactions, Structural evolution, Supramolecular species, Thin coatings, Thin films, Urea, Urea groups, Urea nitrogen, Verlag, Verlag gmbh, Vibration shifts, Weak hydrogen, Weinheim, Wong.
- Teeft :
- Acidic, Acidic conditions, Adjacent urea groups, Ageing, Ageing time, Aggregate size, Ambient temperature, Amide, Basic conditions, Bied, Bulk materials, Chem, Chiral precursor, Coating solutions, Corresponding bulk materials, Corresponding films, Corresponding increase, Corriu, Film morphology, Ftir, Ftir spectra, Full paper, Funct, Gmbh, Hollow tubes, Hybrid, Hybrid films, Hybrid materials, Hydrolytic condensation, Karatchevtseva, Kgaa, Mater, Moreau, Morphology, Nanohybrid, Noyes publications, Optical images, Oxide electronics, Precursor, Precursor molecules, Primary particles, Same time, Secondary structures, Shear stress, Significant differences, Significant extent, Sol, Specialty shapes, Strong hydrogen, Strong interactions, Structural evolution, Supramolecular species, Thin coatings, Thin films, Urea, Urea groups, Urea nitrogen, Verlag, Verlag gmbh, Vibration shifts, Weak hydrogen, Weinheim, Wong.
Abstract
Hybrid organic‐inorganic thin films exhibiting patterned structuring on the nanometer scale have been prepared through the controlled hydrolysis‐condensation of enantiomerically pure chiral urea‐based silyl compounds. The thin films are obtained by spin‐coating of sols obtained via acid‐ or base‐catalyzed hydrolytic condensation of these molecular precursors. A self‐templating process is demonstrated via atomic force and transmission electron microscopy, showing the formation of nanometer size aggregates consisting of interconnected spherulates under acidic condition and of assembled fibers under basic conditions.
Url:
DOI: 10.1002/adfm.200700299
Affiliations:
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Le document en format XML
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<term>Ageing</term>
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<term>Aggregate size</term>
<term>Ambient temperature</term>
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<term>Basic conditions</term>
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<term>Bulk materials</term>
<term>Chem</term>
<term>Chiral precursor</term>
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<term>Corresponding bulk materials</term>
<term>Corresponding films</term>
<term>Corresponding increase</term>
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<term>Full paper</term>
<term>Funct</term>
<term>Gmbh</term>
<term>Hollow tubes</term>
<term>Hybrid</term>
<term>Hybrid films</term>
<term>Hybrid materials</term>
<term>Hydrolytic condensation</term>
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<term>Kgaa</term>
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<term>Noyes publications</term>
<term>Optical images</term>
<term>Oxide electronics</term>
<term>Precursor</term>
<term>Precursor molecules</term>
<term>Primary particles</term>
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<term>Secondary structures</term>
<term>Shear stress</term>
<term>Significant differences</term>
<term>Significant extent</term>
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<term>Strong hydrogen</term>
<term>Strong interactions</term>
<term>Structural evolution</term>
<term>Supramolecular species</term>
<term>Thin coatings</term>
<term>Thin films</term>
<term>Urea</term>
<term>Urea groups</term>
<term>Urea nitrogen</term>
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<front><div type="abstract" xml:lang="en">Hybrid organic‐inorganic thin films exhibiting patterned structuring on the nanometer scale have been prepared through the controlled hydrolysis‐condensation of enantiomerically pure chiral urea‐based silyl compounds. The thin films are obtained by spin‐coating of sols obtained via acid‐ or base‐catalyzed hydrolytic condensation of these molecular precursors. A self‐templating process is demonstrated via atomic force and transmission electron microscopy, showing the formation of nanometer size aggregates consisting of interconnected spherulates under acidic condition and of assembled fibers under basic conditions.</div>
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<name sortKey="Bartlett, J" sort="Bartlett, J" uniqKey="Bartlett J" first="J." last="Bartlett">J. Bartlett</name>
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