Optical spectroscopy and electrical analysis of La3+-doped PVA composite films for varistor and optoelectronic applications

2018 ◽  
Vol 29 (23) ◽  
pp. 20424-20432 ◽  
Author(s):  
H. Elhosiny Ali ◽  
Yasmin Khairy ◽  
H. Algarni ◽  
H. I. Elsaeedy ◽  
A. M. Alshehri ◽  
...  
Keyword(s):  
Optical Spectroscopy ◽  
Composite Films ◽  
Electrical Analysis ◽  
Optoelectronic Applications

scholarly journals Free-Standing Composite Films Based on Thiol-Ene and PEDOT: PSS Layers for Optoelectronic Applications

Polymers ◽  
2021 ◽  
Vol 13 (8) ◽  
pp. 1299
Author(s):  
Brigita Abakevičienė ◽  
Asta Guobienė ◽  
Dalius Jucius ◽  
Algirdas Lazauskas
Keyword(s):  
Sheet Resistance ◽  
Mechanical Performance ◽  
Adhesion Force ◽  
Composite Films ◽  
Conductive Polymer ◽  
Free Standing ◽  
Systematic Analysis ◽  
Uv Curable ◽  
Hydrophilic Nature ◽  
Optoelectronic Applications

Free-standing composite films were fabricated by combining the plane parallel layers of thiol-ene based on pentaerythritol tetrakis(3-mercaptopropionate)-1,3,5-triallyl-1,3,5-triazine-2,4,6(1H,3H,5H)-trione (PETMP-TTT) UV curable polymer and poly(3,4-ethylenedioxythiophene) poly(styrenesulfonate) (PEDOT:PSS) conductive polymer. A systematic analysis was performed with the focus on mechanical performance of the free-standing composite films. The PEDOT:PSS/PETMP-TTT composite exhibited higher values of adhesion force compared to the free-standing PETMP-TTT film due to hydrophilic nature of the PEDOT:PSS layer. The composite was found to be highly transparent in the range of 380–800 nm. The Young’s modulus and tensile strength of PETMP-TTT were found to be 3.6 ± 0.4 GPa and 19 ± 3 MPa, while for PEDOT:PSS/PETMP-TTT to be 3.5 ± 0.3 GPa and 20 ± 3 MPa, respectively. The sheet resistance values of the PEDOT:PSS layer in the composite film were found to be highly stable after a number of bending iterations with slight increase in sheet resistance from 108 to 118 ± 2 Ω/□. The resultant PEDOT:PSS/PETMP-TTT composite can be further used in optoelectronic applications.

Optical spectroscopy of thin C60:CdS composite films

2013 ◽  
Vol 47 (1) ◽  
pp. 105-109 ◽  
Author(s):  
I. B. Zakharova ◽  
V. M. Ziminov ◽  
A. V. Nashchekin ◽  
Yu. S. Vainshtein ◽  
A. N. Aleshin
Keyword(s):  
Optical Spectroscopy ◽  
Composite Films

Thermally Stimulated Discharge Currents of Poly(acrylonitrile-co-acrylic Acid)-Polypyrrole Composites

2013 ◽  
Vol 543 ◽  
pp. 154-158
Author(s):  
S. Cetiner ◽  
M. Olariu ◽  
N.U. Kaya ◽  
S. Aradoaei
Keyword(s):  
Activation Energy ◽  
Glass Transition ◽  
Transition Temperature ◽  
Composite Films ◽  
Conductive Composites ◽  
Broadband Dielectric Spectroscopy ◽  
Three Samples ◽  
Electrical Analysis ◽  
Two Peaks ◽  
Poly Acrylonitrile

Thermally Stimulated Discharge Currents, one of the oldest destructive method widely used for studying the mechanisms of polarization and depolarization within the dielectrics was employed for determining information related to trapped and/or detrapped charges and activation energy (Ea) within P(AN-co-AA)-PPy composite films. Two peaks or two relaxation regions could be noticed on the TSDC spectra for each material under test: one at a temperature around 323.15K (50°C), attributed to decomposition due to DMF removal as presented in our previous studies, and a second one at 363.15K (90°C), attributed to glass transition temperature. An increased of detrapped charges was observed when the PPy quantity within the P(AN-co-AA) matrix was increased. The same time, both relaxations appeared at very close temperatures for all three samples under test. Complementary measurements for an in-depth electrical analysis were performed with the help of Broadband Dielectric Spectroscopy (BDS), while further information regarding conductive composites structures was obtained through FTIR-ATR analysis.

Ultrahigh Energy Storage Performances of Polymer-based Nanocomposite via Interfaces Engneering

2020 ◽  
Author(s):  
Peng Wang ◽  
Zhongbin Pan ◽  
Weilin Wang ◽  
Jianxu Hu ◽  
Jinjun Liu ◽  
...  
Keyword(s):  
Dielectric Constant ◽  
Energy Storage ◽  
High Performance ◽  
Breakdown Strength ◽  
Composite Films ◽  
Power Electronic ◽  
Ultrahigh Energy

High-performance electrostatic capacitors are in urgent demand owing to the rapidly development of advanced power electronic applications. However, polymer-based composite films with both high breakdown strength (Eb) and dielectric constant...

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