Chemical modification of thin silica films via the sol-gel-process

1997 ◽  
Vol 8 (1-3) ◽  
pp. 507-509 ◽  
Author(s):  
U. Georgi ◽  
E. Brendler ◽  
H. Görz ◽  
G. Roewer
Keyword(s):  
Chemical Modification ◽  
Sol Gel ◽  
Silica Films ◽  
Sol Gel Process

Nanostructured Doped Silica Films Application as Sensitive Layers for Chemical Sensors

2013 ◽  
Vol 684 ◽  
pp. 7-11
Author(s):  
Sergey Krutovertsev ◽  
Alla Tarasova ◽  
Olga Ivanova ◽  
Larisa Krutovertseva
Keyword(s):  
Initial Conditions ◽  
Sol Gel ◽  
Silica Films ◽  
Adsorption Activity ◽  
Developed Surface ◽  
Sol Gel Process ◽  
Sensitive Characteristics ◽  
The Right ◽  
Kinetics Of ◽  
Matrix Factors

The sensor behavior of nanostructured doped silica films produced by sol-gel way were examined. Hygroscopic substances and polyoxometalates were used as additives to make more significant sensitive characteristics of initial matrix. Factors that have effect on sol preparation and films forming were investigated. Adsorption activity of the sensitive films was studied and it was shown that the films had a highly developed surface with nano-size pores. Change of initial conditions of sol-gel process gives opportunity to influence on kinetics of gel formation and consequently, on structure and properties of final materials. The study showed that the conditions of the environment affected the sensors characteristics markedly, which can be improved by choosing of the right procedure of forming and treatment. Influence of type and additive substances quantity into doped films was discussed in the paper

Sol-gel process of non-linear optical silica films with organic chromophore as side chain

1996 ◽  
Vol 31 (9) ◽  
pp. 2443-2446 ◽  
Author(s):  
Po-Hou Sung ◽  
Shao-Ling Wu ◽  
Chien-Yang Lin
Keyword(s):  
Sol Gel ◽  
Side Chain ◽  
Silica Films ◽  
Sol Gel Process ◽  
Non Linear ◽  
Linear Optical ◽  
Organic Chromophore

Textural characterization of porous silica films prepared by the sol–gel process

2004 ◽  
pp. 227-231
Author(s):  
G. L. T. Nascimento ◽  
L. M. Seara ◽  
B. R. A. Neves ◽  
N. D. S. Mohallem
Keyword(s):  
Sol Gel ◽  
Porous Silica ◽  
Silica Films ◽  
Textural Characterization ◽  
Sol Gel Process

Study on the Dielectric Properties of Hybrid and Porous Polyimide-Silica Films

2008 ◽  
Vol 47-50 ◽  
pp. 973-976 ◽  
Author(s):  
Yi He Zhang ◽  
Qing Song Su ◽  
Li Yu ◽  
Hong Zheng ◽  
Hai Tao Huang ◽  
...  
Keyword(s):  
Dielectric Constant ◽  
Sol Gel ◽  
Silica Particles ◽  
Low Dielectric Constant ◽  
Hybrid Films ◽  
Porous Films ◽  
Silica Films ◽  
Low Dielectric ◽  
Dimethyl Acetamide ◽  
Sol Gel Process

A sol-gel process was used to prepare polyimide-silica hybrid films from the polyimide precursors and TEOS in N,N- dimethyl acetamide, then the hybrid film was treated with hydrofluoric acid to remove the dispersed silica particles, leaving pores with diameters between 80nm to 1µm, depending on the size of silica particles. The structure and dielectric constant of the hybrid and porous films were characterized by FTIR,SEM. The porous films displayed relatively low dielectric constant compared to the hybrid polyimide-silica films.

ChemInform Abstract: Insulating Ultrathin Silica Films Formed by a Room-Temperature Sol-Gel Process.

ChemInform ◽  
2010 ◽  
Vol 32 (34) ◽  
pp. no-no
Author(s):  
Joseph W. Robertson ◽  
Mei Cai ◽  
Jeanne E. Pemberton
Keyword(s):  
Room Temperature ◽  
Sol Gel ◽  
Silica Films ◽  
Sol Gel Process

Second-order nonlinear optical properties of cross-linked silica films prepared through sol–gel process

2008 ◽  
Vol 516 (16) ◽  
pp. 5483-5487 ◽  
Author(s):  
Yuanjing Cui ◽  
Guodong Qian ◽  
Lujian Chen ◽  
Zhiyu Wang ◽  
Minquan Wang
Keyword(s):  
Optical Properties ◽  
Nonlinear Optical ◽  
Sol Gel ◽  
Second Order ◽  
Nonlinear Optical Properties ◽  
Silica Films ◽  
Sol Gel Process

Ultrahydrophobic silica films by sol–gel process

2009 ◽  
Vol 17 (5) ◽  
pp. 565-571 ◽  
Author(s):  
Sanjay S. Latthe ◽  
Hiroaki Imai ◽  
V. Ganesan ◽  
A. Venkateswara Rao
Keyword(s):  
Sol Gel ◽  
Silica Films ◽  
Sol Gel Process

Porous superhydrophobic silica films by sol–gel process

2010 ◽  
Vol 130 (1-3) ◽  
pp. 115-121 ◽  
Author(s):  
Sanjay S. Latthe ◽  
Hiroaki Imai ◽  
V. Ganesan ◽  
A. Venkateswara Rao
Keyword(s):  
Sol Gel ◽  
Silica Films ◽  
Sol Gel Process ◽  
Superhydrophobic Silica
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