Substrate coated with a composite film, method for making...

Details Substrate coated with a composite film, method for making... Substrate coated with a composite film, method for making...

2002-07-25

2008-03-25

McNeil, Jennifer (Department: 1775)

Stock material or miscellaneous articles

Web or sheet containing structurally defined element or...

Composite having voids in a component

C428S312600, C428S312800, C428S319100, C977S811000

Reexamination Certificate

active

07348054

ABSTRACT:
This substrate is coated with a composite film based on a mesoporous mineral layer containing nanoparticles formed in situ inside the layer. The composite film has a periodic lattice structure over a major portion of the thickness in which the nanoparticles are present, in which structure the nanoparticles are arranged in a periodic manner on the scale of domains of at least 4 periods in the thickness of the film.This structure can be obtained from a mesoporous mineral layer of periodic structure on the scale of domains of at least 4 periods of pores, forming a matrix on the substrate, by:depositing at least one precursor in the pores of the matrix layer; andgrowing particles derived from the precursor with the spatial distribution and the dimensions being controlled by the structure of the pores of the matrix.Applications to materials for electronics, nonlinear optics and magnetism.

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Jun Liu, et al.: “Molecular assembly in ordered mesoporosity: a new class of highly functional nanoscale materials”, Journal of Physical Chemistry A, vol. 104, No. 36, pp. 8328-8339, Sep. 14, 2000.
Tang Y S, et al.: “Direct MBE growth of SiGe dots on ordered mesoporous glass-coated Si substrate”, Preparation and Characterization, Elsevier Sequoia, vol. 321, No. 1-2, pp. 76-80, May 26, 1998.

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