Sol-Gel

 

 
Sculpting....air
Aerogels are remarkable materials with unprecedented physical properties that fascinate researchers and space engineers. They have incredible insulating properties with regard to thermal, electrical and acoustic energy transfers. After  being used by NASA in various space experiments to capture cosmic dust, aerogels became, for the first time, the object of sculptural research. Dr. Iannis MICHALOU(di)S, Research Affiliate at the Center for Advanced Visual Studies at MIT tells us the story.
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Toward molecular design of oxide precursors for advanced materials
by Liliane G. Hubert-Pfalzgraf

Chemical routes to materials are based on transformations in solution such as sol-gel processing, hydro or solvo thermal syntheses, Metal Organic Decomposition (MOD), or in the vapour phase chemical vapor deposition (CVD). Most chemical routes rely on the availability of appropriate “metal-organic” molecules as precursors. Among the various precursors of metal oxides namely metal
b-diketonates and metal carboxylates, metal alkoxides are the most versatile. They are available for nearly all elements and cost-effective synthesis from cheap feedstoks have been developed for some.
Professor Liliane G. Hubert-Pfalzgraf make the point.
Polyoxometalate-based organic-inorganic hybrid materials
The paper summarizes and reviews the current developments in the area of polyoxometalate (POM)-based organic-inorganic hybrid materials including POM-based organic- or organometallic-derived hybrid materials, charge transfer (CT) salts and organic-inorganic composite films. This review also provides insight into the rational synthesis and potential applications of these hybrid materials.
Smart Optical Materials by Sol-Gel Method
Professor Renata Reisfeld  and his research team from the Hebrew University of Jerusalem have investigated for more than a decade sol-gel derived optical materials. She give us today an overview of a broad palette of such materials, investigated by her group, and  potentially useful for sensors, lasers, solar energy concentrators, variable transmission windows, and light amplifiers.
Glass from Aerogels... 25 years ago
by Michel Prassas
25 years ago, glass scientists were intensively looking for low temperature processing routes for making glass. The discovery that monolithic gels can be transformed in glassy materials at half the conventional melting temperature, became a useless reality with extraordinary implications. The topic drained a great number of researchers from a variety of disciplines and open the window of what commonly call today the sol-gel process.  An open and versatile chemical processing route to  a variety of inorganic and organic-inorganic materials with nanotailored structures and properties. 
What are hybrids ?
by Prof. Clement Sanchez
An incredible amount of research investigations have appeared the last 10 years in the field of hybrids materials indicating the growing interest of chemists, physicists and materials researchers to fully exploit this technical opportunity for creating materials and device with benefits of the best of the two worlds namely inorganic and organic...
Wet Coating Technologies for Glass 
by H. Schmidt and  M. Mennig
One advantage of wet coating techniques is, that molecular structures developed by chemical synthesis can be used to develop new properties, or to develop new desired molecular structures by heat-treatment and subsequent chemical reaction on the surface. After introducing the advantages of wet coating technologies the authors describe the different wet coating techniques including, dip, spin silk screen, roll coating, laminar flow... 
COATINGS: An Introduction to the cleaning procedures
by Dr W. Birch
Ultraviolet - ozone cleaning of semiconductor surfaces
by John Vig  45 pages, 175 references. (pdf file 3Mo)
Chapter 6 of "Handbook of semiconductor wafer cleaning technology. Science, Technology & Applications" Ed; by W; Kern, Noyes Publications, 1993
Copyright notice
"Although the book in which this chapter appears is copyrighted, the author is an employee of the U.S. Government and performed this work as part of his
official duties. The work is, therefore, not subject to copyright protection by the publisher."
SOL-GEL: A low temperature process for materials of the new millennium
by Prof. J. Phalippou
Vanadium dioxide as infrared active coating
by G. Guzman
YVO4:Ln (Ln= Eu, Nd) luminescent nanoparticles
by Arnaud Huignard, Thierry Gacoin and Jean-Pierre Boilot
Optical anisotropy of silica gels doped with magnetic nanoparticles
by D. Jamon, J. J. Rousseau, H. Roux, V. Cabuil 
Magnetic nanoparticles orientation can be  fixed if the gels are prepared under magnetic field. Permanent birefringent optical plates can easily be prepared this way with  tailored properties. 

Rare -earth doped transparent nanoparticulate glass-ceramics
by M. Mortier, M. Génotelle, G. Patriarche 

Optical properties of self assembled metallic nanoparticles: Study at the microscopic scale (in French) (ppt slides)
by Fabien Silly, Alexander O. Gusev, Abdelhafed Taleb, Fabrice Charra, Marie-Paule Pileni 

Amplification of the 3rd order optical non- linearities of metallic nanoparticles (in French) (ppt slides)
by N. Pinçon, B. Palpant, D. Prot, E. Charron, C. Sella, S. Debrus 

Nanocrystalline electrochromic device
by Dr. Pierre Bonhote (EPL)
A short illustrated description of how electrochromic devices based on molecular monolayers anchored on a semiconductor surface works.
Dye Sensitized Solar Cells (DYSC)
based on Nanocrystalline Oxide Semiconductor Films made by sol-gel
from the Laboratory for Photonics and Interfaces, Swiss Federal Institute of Technology

Sol-Gel Prospectus of Research 

Synthesis and characterization of novel Nafion/Ormosil/IPN nanocomposites having tailored gas and liquid permselectivities
by Sandra Kay Young (Mauritz group)