scholarly journals Ferroelectric properties and Raman spectroscopy of the [(C4H9)4N]3Bi2Cl9 compound

RSC Advances ◽  
2019 ◽  
Vol 9 (42) ◽  
pp. 24291-24298
Author(s):  
W. Trigui ◽  
F. Hlel
Keyword(s):  
Raman Spectroscopy ◽  
Hybrid Materials ◽  
Ferroelectric Properties ◽  
Technological Significance

The exploration of ferroelectric hybrid materials is highly appealing due to their great technological significance.

[N(CH3)3H]2ZnCl4: Ferroelectric properties and characterization of phase transitions by Raman spectroscopy

2014 ◽  
Vol 116 (21) ◽  
pp. 214104 ◽  
Author(s):  
M. Ben Bechir ◽  
K. Karoui ◽  
A. Bulou ◽  
M. Tabellout ◽  
K. Guidara ◽  
...  
Keyword(s):  
Raman Spectroscopy ◽  
Phase Transitions ◽  
Ferroelectric Properties ◽  
Properties And Characterization

Raman analysis of microcircuits with lead zirconate titanate (PZT) films

1992 ◽  
Vol 50 (2) ◽  
pp. 1688-1689
Author(s):  
D. R. Tallant ◽  
R. W. Schwartz ◽  
B. A. Tuttle ◽  
S. C. Everist ◽  
B. C. Tafoya
Keyword(s):  
Raman Spectroscopy ◽  
High Temperature ◽  
Lead Zirconate Titanate ◽  
Ferroelectric Properties ◽  
Sol Gel ◽  
Lead Zirconate ◽  
Solution Chemistry ◽  
Zirconate Titanate ◽  
Pzt Films ◽  
High Temperature Processing

Certain compositions and structural forms of lead zirconate titanate (PZT) materials have potential applications in microelectronics because of their ferroelectric properties. One such application is in the development of new types of non-volatile memories. PZT films are integrated into microcircuit components using sol-gel deposition techniques. The solution chemistry effects attendant to different sol-gel preparation procedures have been investigated by several researchers.We have used Raman spectroscopy both to characterize the metallo-organic species initially laid down on macroscopic platinum substrates during sol-gel processing and to follow the evolution of Pb-Zr-Ti oxide species through high temperature processing. The high temperature processing removes residual organics and creates Pb-Zr-Ti oxide structures that have ferroelectric properties. Low temperature pyrochlore structures, which are not ferroelectric, can be distinguished by Raman spectroscopy from tetragonal and pseudo-cubic/rhombohedral perovskite structures, which are usefully ferroelectric (Top Figure). In addition Raman spectroscopy has identified lead and titanium oxides that form as intermediates in the high temperature crystallization of ferroelectric PZT structures.

FT-Raman spectroscopy of gums of technological significance

1998 ◽  
Vol 54 (7) ◽  
pp. 903-920 ◽  
Author(s):  
H.G.M Edwards ◽  
M.J Falk ◽  
M.G Sibley ◽  
J Alvarez-Benedi ◽  
F Rull
Keyword(s):  
Raman Spectroscopy ◽  
Ft Raman Spectroscopy ◽  
Technological Significance ◽  
Ft Raman

In Situ Synthesis of Carbon Nanotubes/Graphene Nanoplatelets Hybrid Materials with Excellent Mechanical Performance

NANO ◽  
2015 ◽  
Vol 10 (04) ◽  
pp. 1550055 ◽  
Author(s):  
Menglei Wang ◽  
Kejing Yu ◽  
Kun Qian
Keyword(s):  
Carbon Nanotubes ◽  
Raman Spectroscopy ◽  
Hybrid Materials ◽  
Mechanical Performance ◽  
Tensile Tests ◽  
Graphene Nanoplatelets ◽  
Gravimetric Analysis ◽  
Acryloyl Chloride ◽  
Step Method

A two-step method for the preparation of hybrid materials consisting of multi-walled carbon nanotubes (MWCNTs) attached to graphene nanoplatelets (GNPs) was proposed. Firstly, poly (acryloyl chloride) was grafted in situ onto the surface of MWCNTs. Secondly, the obtained MWCNTs (MWCNTs-PACl) were reacted with acid-treated GNPs to form a nanotube–polymer–graphene hybrid. Fourier transform infrared spectroscopy (FTIR), Raman spectroscopy, transmission electron microscopy (TEM) and thermal gravimetric analysis (TGA) were used to investigate the forming of the hybrid materials. FTIR results showed that MWCNTs/PACl and GNPs were successfully bridged by chemical bonds like O – C = O and C – O – C . Raman spectroscopy furthermore revealed that acryloyl chloride can be used to connect the MWCNTs and GNPs due to the defects of MWCNTs, and consequently the defects of the hybrid materials were limited. Meanwhile, TEM observation demonstrated the nanostructure clearly in which the MWCNTs with a polymer layer were attached successfully on the surface of GNPs. And TGA curves reflected that the content of MWCNTs and GNPs was about 46.5% in the hybrid materials. In addition, the tensile tests results showed that MWCNTs/GNPs hybrid materials can improve the mechanical performance of epoxy composites in higher degree, compared with MWCNTs or GNPs particles alone.

Morphology and Viscoelasticity of Organic/Inorganic Hybrid Nanocomposite

2007 ◽  
Vol 345-346 ◽  
pp. 1515-1518
Author(s):  
Wakako Araki ◽  
Tadaharu Adachi
Keyword(s):  
Raman Spectroscopy ◽  
Glass Transition ◽  
Epoxy Resin ◽  
Hybrid Materials ◽  
Dynamic Modulus ◽  
Silica Content ◽  
Physical Interaction ◽  
Hybrid Nanocomposite ◽  
Inorganic Hybrid ◽  
Silica Hybrid

Two different processes were used to manufacture epoxy/silica hybrid materials. Observations by AFM, TEM, and Raman spectroscopy demonstrated different silica structures, depending on the hybrid process. DMTA results indicated that the “sequentially” hybridised sample had a new glass transition at higher temperatures, which could be attributed to the physical interaction between the silica chain and the epoxy resin. The dynamic modulus was significantly improved and depended only on the silica content, not on the silica structure nor the aging.

scholarly journals Correlation between crystal structures and polar (ferroelectric) properties of hybrids of haloantimonates(iii) and halobismuthates(iii)

2020 ◽  
Vol 7 (10) ◽  
pp. 2107-2128 ◽  
Author(s):  
R. Jakubas ◽  
M. Rok ◽  
K. Mencel ◽  
G. Bator ◽  
A. Piecha-Bisiorek
Keyword(s):  
Crystal Structures ◽  
Hybrid Materials ◽  
Ferroelectric Properties ◽  
Inorganic Hybrid ◽  
Dielectric Devices

Halogenoantimonates(iii) and halogenobismuthates(iii) are a highly versatile class of organic–inorganic hybrid materials, applicable in optoelectronics and switchable dielectric devices.

Probing the local environment of hybrid materials designed from ionic liquids and synthetic clay by Raman spectroscopy

2014 ◽  
Vol 122 ◽  
pp. 469-475 ◽  
Author(s):  
Leonardo J.A. Siqueira ◽  
Vera R.L. Constantino ◽  
Fernanda F. Camilo ◽  
Roberto M. Torresi ◽  
Marcia L.A. Temperini ◽  
...  
Keyword(s):  
Raman Spectroscopy ◽  
Ionic Liquids ◽  
Hybrid Materials ◽  
Local Environment ◽  
Synthetic Clay
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