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

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

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Preparation and non-linear optical properties of CdS quantum dots in Na2O-B2O3-SiO2 glasses by the sol-gel technique

Journal of Materials Science ◽

10.1007/bf01139160 ◽

1996 ◽

Vol 31 (2) ◽

pp. 423-430 ◽

Cited By ~ 25

Author(s):

T. Takada ◽

J. D. Mackenzie ◽

M. Yamane ◽

K. Kang ◽

N. Peyghambarian ◽

...

Keyword(s):

Quantum Dots ◽

Optical Properties ◽

Sol Gel ◽

Cds Quantum Dots ◽

Non Linear ◽

Linear Optical Properties ◽

Gel Technique ◽

Linear Optical

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

Surface and Colloid Science ◽

10.1007/b97091 ◽

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

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Structural, Optical, and pH-Stimulus Response Properties of Cresol Red Immobilized Nanocomposite Silica Films Derived by a Sol–Gel Process Employing Different Synthetic Routes

Industrial & Engineering Chemistry Research ◽

10.1021/ie500846z ◽

2014 ◽

Vol 53 (49) ◽

pp. 18863-18872 ◽

Cited By ~ 5

Author(s):

Shobhit Singh Chauhan ◽

R. V. Jasra ◽

A. L. Sharma

Keyword(s):

Sol Gel ◽

Silica Films ◽

Response Properties ◽

Stimulus Response ◽

Sol Gel Process ◽

Synthetic Routes ◽

Cresol Red

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

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.47-50.973 ◽

2008 ◽

Vol 47-50 ◽

pp. 973-976 ◽

Cited By ~ 1

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.

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

ChemInform ◽

10.1002/chin.200134012 ◽

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

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Synthesis and Second-Order Optical Nonlinearity of Inorganic-Organic Hybrid Films Bearing Y-Type NLO Active Chromophore

Key Engineering Materials ◽

10.4028/www.scientific.net/kem.336-338.552 ◽

2007 ◽

Vol 336-338 ◽

pp. 552-554

Author(s):

Xiao Nan Mei ◽

Hai Yao Lin ◽

Yuan Jing Cui ◽

Ping Lv ◽

Guo Dong Qian

Keyword(s):

Thermal Stability ◽

Sol Gel ◽

Optical Nonlinearity ◽

Second Order ◽

Inorganic Materials ◽

Hybrid Films ◽

Organic Hybrid ◽

Type Silicon ◽

Sol Gel Process ◽

Organic Chromophore

In order to achieve a large hyperpolarizability (β) value and thermal stability, a novel Y-type silicon precursor ICTES-DBPNPI was synthesized. By the sol-gel process, the new organic-inorganic materials having organic chromophore were prepared.

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