[Nucléation et croissance confinée de nanocristaux organiques en matrices sol–gel : un nouveau type de matériaux organo-minéraux pour l'optique]
Nous avons développé une élaboration simple et générique de nouveaux matériaux hybrides organo-minéraux constitués de nanocristaux organiques inclus dans des matrices sol–gel. Ce procédé est basé sur le contrôle de la nucléation et de la croissance confinée de phases organiques dans les pores de gels denses. Pour les xérogels massifs, nous avons obtenu des distributions de taille de nanocristaux étroites (10–20 nm). Nous avons étendu cette méthode à l'élaboration de couches minces par spin-coating. Dans tous ces matériaux nanocomposites, nous avons stabilisé les phases organiques cristallisées et obtenus des propriétés optiques linéaires et non-linéaires prometteuses.
We have engineered new hybrid organic–inorganic materials through a simple and generic preparation of stable organic nanocrystals grown in gel–glass matrices. This process is based on the confined nucleation and growth of dyes in the pores of dense gels. For bulk samples, narrow size distributions of particles are obtained between 10 and 20 nm in diameter. We have extended this method to the preparation of organic nanocrystals embedded in sol–gel thin films by spin-coating. For all these nanocomposite samples, we have significantly increased the stability of the dye and obtained promising linear and nonlinear optical properties.
Publié le :
Mots-clés : nucléation et croissance confinées, matériaux hybrides organo-minéraux, nanocristaux organiques, sol–gel, optique
Julien Zaccaro 1 ; Nathalie Sanz 1 ; Estelle Botzung Appert 1 ; Patrice L. Baldeck 2 ; Alain Ibanez 1
@article{CRPHYS_2002__3_4_463_0,
author = {Julien Zaccaro and Nathalie Sanz and Estelle~Botzung Appert and Patrice L. Baldeck and Alain Ibanez},
title = {Organic nanocrystals grown in sol{\textendash}gel matrices: a~new type of hybrid material for optics},
journal = {Comptes Rendus. Physique},
pages = {463--478},
publisher = {Elsevier},
volume = {3},
number = {4},
year = {2002},
doi = {10.1016/S1631-0705(02)01330-0},
language = {en},
}
TY - JOUR AU - Julien Zaccaro AU - Nathalie Sanz AU - Estelle Botzung Appert AU - Patrice L. Baldeck AU - Alain Ibanez TI - Organic nanocrystals grown in sol–gel matrices: a new type of hybrid material for optics JO - Comptes Rendus. Physique PY - 2002 SP - 463 EP - 478 VL - 3 IS - 4 PB - Elsevier DO - 10.1016/S1631-0705(02)01330-0 LA - en ID - CRPHYS_2002__3_4_463_0 ER -
%0 Journal Article %A Julien Zaccaro %A Nathalie Sanz %A Estelle Botzung Appert %A Patrice L. Baldeck %A Alain Ibanez %T Organic nanocrystals grown in sol–gel matrices: a new type of hybrid material for optics %J Comptes Rendus. Physique %D 2002 %P 463-478 %V 3 %N 4 %I Elsevier %R 10.1016/S1631-0705(02)01330-0 %G en %F CRPHYS_2002__3_4_463_0
Julien Zaccaro; Nathalie Sanz; Estelle Botzung Appert; Patrice L. Baldeck; Alain Ibanez. Organic nanocrystals grown in sol–gel matrices: a new type of hybrid material for optics. Comptes Rendus. Physique, Volume 3 (2002) no. 4, pp. 463-478. doi : 10.1016/S1631-0705(02)01330-0. https://comptes-rendus.academie-sciences.fr/physique/articles/10.1016/S1631-0705(02)01330-0/
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