Sol-Gel Synthesis of Functional Nanostructured Materials for Electronic Devices

The possibility of functional nanostructured materials for electronic devices synthesis by sol-gel method have been discussed such as ferroelectrics (SrBi2(TaxNb1-x)2O9) , ferromagnetics (FexCoyOz) and semiconductors (ZnO). The structural features of the surface (AFM), crystallization behavior (XRD) during the heating and properties of synthesized films are discussed. Achieved parameters suggest the possibility of using synthesized SBTN sol-gel films in non-volatile memory devices, semiconductors active ZnO layers in solar sells, ferromagnetics FexCoyOzfilms in radioabsorbing covers.

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Sol-gel synthesis of textured lanthanum titanate thin films

Journal of Materials Research ◽

10.1557/jmr.2003.0046 ◽

2003 ◽

Vol 18 (2) ◽

pp. 357-362 ◽

Cited By ~ 12

Author(s):

Mary M. Sandstrom ◽

Paul Fuierer

Keyword(s):

Thin Films ◽

Sol Gel ◽

Precursor Solution ◽

Solution Concentration ◽

Optical Measurements ◽

Layered Perovskite ◽

Orientation Factor ◽

Anisotropic Structures ◽

Sol Gel Films ◽

Sol Gel Synthesis

Control over crystallographic orientation in thin films is important, particularly with highly anisotropic structures. Because of its ferroelectric nature, the layered perovskite La2Ti2O7 has interesting piezoelectric and electrooptic properties that may be exploited when films are highly textured. Sol-gel films with an orientation factor of greater than 95% were fabricated without relying on epitaxial (lattice-matching) growth from the substrate. Film orientation and crystallization were confirmed by x-ray diffraction, scanning electron microscopy, atomic force microscopy, and optical measurements. The particle sizes in all precursor solutions were measured by dynamic light scattering experiments. Experimental results indicate that film orientation is a function of precursor solution concentration, size of the molecular clusters in the solution, and film thickness.

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Template Assisted Fabrication of TiO2 and BaTiO3 Nanotubes

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.271-272.107 ◽

2012 ◽

Vol 271-272 ◽

pp. 107-111 ◽

Cited By ~ 1

Author(s):

Chien Chon Chen ◽

Chin Hua Cheng ◽

Guo Yi Tang ◽

Tai Nan Lin ◽

Chung Kwei Lin

Keyword(s):

Mechanical Properties ◽

Aluminum Oxide ◽

Anodic Aluminum Oxide ◽

Electronic Devices ◽

Sol Gel ◽

Gel Method ◽

Sol Gel Method ◽

Anodic Aluminum ◽

Working Electrode ◽

Peeling Off

This paper discussed fabrication of TiO2 and BaTiO3 nanotubes by sol-gel method and used anodic aluminum oxide (AAO) as template. The mechanical properties of TiO2 or BaTiO3 NTs are not great, so a longer tube can crack easily, leading to the peeling off of the NTs film from the Ti substrate. Therefore, we propose to use AAO as a template, followed by deposition of TiO2 and BaTiO3 NT inside AAO to make a working electrode for further electronic devices.

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Sol-Gel Synthesis, X-Ray Diffraction Studies, and Electric Conductivity of Sodium Europium Silicate

Journal of Chemistry ◽

10.1155/2013/251349 ◽

2013 ◽

Vol 2013 ◽

pp. 1-6 ◽

Cited By ~ 1

Author(s):

Ekaterina V. Borisova ◽

Alexey V. Ignatov ◽

Eugeni I. Get'man ◽

Stanislav N. Loboda ◽

Lyudmyla I. Ardanova ◽

...

Keyword(s):

Activation Energy ◽

Electric Conductivity ◽

Rietveld Refinement ◽

Sol Gel ◽

Apatite Structure ◽

X Ray Diffraction ◽

Gel Method ◽

X Ray ◽

Sol Gel Method ◽

Sol Gel Synthesis

Sodium europium silicate, NaEu9(SiO4)6O2, with apatite structure has been obtained and studied using X-ray diffraction and SEM. It has been shown that sodium sublimation does not take place upon synthesis by the sol-gel method. Rietveld refinement has revealed that sodium atoms are ordered and occupy the 4f position. O(4) atoms not related to silicate ions are placed at the centers of Eu(2) triangles. DC and AC electric conductivity and activation energy have been determined for the compound studied.

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Preparation, characterization, and micropatterning of laser-dye-doped sol-gel films

Journal of Materials Research ◽

10.1557/jmr.2002.0309 ◽

2002 ◽

Vol 17 (8) ◽

pp. 2095-2098 ◽

Cited By ~ 3

Author(s):

A. Arena ◽

S. Patanè ◽

G. Saitta ◽

G. Rizzo ◽

S. Galvagno ◽

...

Keyword(s):

Soft Lithography ◽

Sol Gel ◽

Film Surface ◽

Optical Microscope ◽

Infrared Range ◽

Patterned Films ◽

A Charge ◽

Sol Gel Films ◽

Sol Gel Synthesis ◽

Micrometer Scale

Planar thin films of dye-doped silica were prepared by sol-gel synthesis. The optical properties of the films were characterized by transmittance measurements in the visible-infrared range and by photoluminescence. Micropatterns whose feature size was on the order of 2.4 μm, were imprinted on the film surface by a simple soft lithography approach. An optical microscope interfaced to a charge-coupled device camera was used to image the imprinted patterns and to analyze the patterned films photoluminescence. A sensitive spectral narrowing of the emission, which occurred only in micropatterned films, was attributed to the lateral confinement of the luminescence due to the micrometer-scale modulation of refractive index produced by the embossing procedure.

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Evaluation of La1−xSrxMnO3 (0 ≤ x < 0.4) synthesised via a modified sol–gel method as mediators for magnetic fluid hyperthermia

CrystEngComm ◽

10.1039/c5ce01890k ◽

2016 ◽

Vol 18 (3) ◽

pp. 407-416 ◽

Cited By ~ 32

Author(s):

K. McBride ◽

J. Cook ◽

S. Gray ◽

S. Felton ◽

L. Stella ◽

...

Keyword(s):

Crystal Structure ◽

Magnetic Fluid ◽

Sol Gel ◽

Magnetic Fluid Hyperthermia ◽

Gel Method ◽

Sol Gel Method ◽

Lanthanum Strontium ◽

Sol Gel Synthesis

A range of lanthanum strontium manganates (La1−xSrxMnO3) where 0 ≤ x ≤ 0.4 were prepared using a modified peroxide sol–gel synthesis. The crystal structure of these materials was investigated and their potential as mediators for magnetic fluid hyperthermia was evaluated.

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