Fluorescence spectra of sol-gel glasses doped with organic molecules

1996 ◽  
Author(s):  
M. A. Meneses-Nava
Keyword(s):  
Fluorescence Spectra ◽  
Organic Molecules ◽  
Sol Gel ◽  
Gel Glasses

Photochromism of sol-gel glasses containing encapsulated organic molecules

1992 ◽  
Author(s):  
Stacey A. Yamanaka ◽  
Jeffrey I. Zink ◽  
Bruce S. Dunn
Keyword(s):  
Organic Molecules ◽  
Sol Gel ◽  
Gel Glasses

Controlled Nanocrystallization of Organic Molecules in Sol-Gel Glasses

1998 ◽  
Vol 10 (18) ◽  
pp. 1540-1543 ◽  
Author(s):  
Alain Ibanez ◽  
Serguei Maximov ◽  
Antoine Guiu ◽  
Catherine Chaillout ◽  
Patrice L. Baldeck
Keyword(s):  
Organic Molecules ◽  
Sol Gel ◽  
Gel Glasses

Inhomogeneous distribution of organic molecules adsorbed in sol–gel glasses

1999 ◽  
Vol 12 (4) ◽  
pp. 441-446 ◽  
Author(s):  
M.A Meneses-Nava ◽  
S Chávez-Cerda ◽  
V Sánchez-Villicaña ◽  
J.J Sánchez-Mondragón ◽  
T.A King
Keyword(s):  
Organic Molecules ◽  
Sol Gel ◽  
Inhomogeneous Distribution ◽  
Gel Glasses

TEM visualization of surface replicated acid and base catalyzed sol-gel glasses

1986 ◽  
Vol 44 ◽  
pp. 448-449
Author(s):  
George C. Ruben ◽  
Merrill W. Shafer
Keyword(s):  
Elevated Temperatures ◽  
Sol Gel ◽  
Basic Medium ◽  
Glass Transition Point ◽  
Structural Space ◽  
Acid And Base ◽  
Organometallic Precursors ◽  
New Processing ◽  
Gel Glasses ◽  
Physical Phenomena

Traditionally ceramics have been shaped from powders and densified at temperatures close to their liquid point. New processing methods using various types of sols, gels, and organometallic precursors at low temperature which enable densificatlon at elevated temperatures well below their liquidus, hold the promise of producing ceramics and glasses of controlled and reproducible properties that are highly reliable for electronic, structural, space or medical applications. Ultrastructure processing of silicon alkoxides in acid medium and mixtures of Ludox HS-40 (120Å spheres from DuPont) and Kasil (38% K2O &62% SiO2) in basic medium have been aimed at producing materials with a range of well defined pore sizes (∼20-400Å) to study physical phenomena and materials behavior in well characterized confined geometries. We have studied Pt/C surface replicas of some of these porous sol-gels prepared at temperatures below their glass transition point.

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