scholarly journals PEDOT:PSS Overcoating Layer for Mechanically and Chemically Stable Ag Nanowire Flexible Transparent Electrode

2017 ◽  
Vol 2017 ◽  
pp. 1-6 ◽  
Author(s):  
Byungil Hwang ◽  
Sooman Lim
Keyword(s):  
Mechanical Stability ◽  
Transparent Electrode ◽  
Bending Tests ◽  
Nanowire Network ◽  
Microscope Images ◽  
Ag Nanowires ◽  
High Mechanical Stability ◽  
Ag Nanowire ◽  
Scanning Electron

We investigated the effect of poly(3,4-ethylenedioxythiophene)-poly(styrenesulfonate) (PEDOT:PSS) deposition on the chemical and mechanical stability of Ag nanowire flexible electrodes. A large number of bending cycles, up to 500,000 cycles, were imposed on the Ag nanowire electrodes with and without PEDOT:PSS overcoating layer. In situ resistance measurement during bending tests revealed that the Ag nanowire electrode with PEDOT:PSS overcoating layer was mechanically reliable, showing a 21.9% increase in resistance after 500,000 cycles of bending. Scanning electron microscope images revealed that the failure of the Ag nanowire network occurred along with cracks initiated in the PEDOT:PSS layer, which resulted in the increase in resistance under bending. Furthermore, the PEDOT:PSS deposition enhanced the chemical stability of Ag nanowire electrode, which showed no significant increase in resistance after exposure in air for 50 days. Our study underscored that PEDOT:PSS is effective in protecting the Ag nanowires, while maintaining the high mechanical stability.

scholarly journals Stretchable and Low-Haze Ag-Nanowire-Network 2-D Films Embedded into a Cross-linked Polydimethylsiloxane Elastomer

Nanomaterials ◽  
2019 ◽  
Vol 9 (4) ◽  
pp. 576 ◽  
Author(s):  
Ki-Wook Lee ◽  
Yong-Hoe Kim ◽  
Wen Du ◽  
Jin-Yeol Kim
Keyword(s):  
Aspect Ratio ◽  
Sheet Resistance ◽  
High Aspect Ratio ◽  
Transparent Electrode ◽  
Polyol Synthesis ◽  
Nanowire Network ◽  
Release Test ◽  
Ag Nanowires ◽  
Polydimethylsiloxane Elastomer ◽  
Ag Nanowire

We report the fabrication of stretchable transparent electrode films (STEF) using 15-nm-diameter Ag nanowires networks embedded into a cross-linked polydimethylsiloxane elastomer. 15-nm-diameter Ag NWs with a high aspect ratio (˃1000) were synthesized through pressure-induced polyol synthesis in the presence of AgCl particles with KBr. These Ag NW network-based STEF exhibited considerably low haze values (<1.5%) with a transparency of 90% despite the low sheet resistance of 20 Ω/sq. The STEF exhibited an outstanding mechanical elasticity of up to 20% and no visible change occurred in the sheet resistance after 100 cycles at a stretching-release test of 20%.

High-performance ZnO/Ag Nanowire/ZnO composite film UV photodetectors with large area and low operating voltage

2014 ◽  
Vol 2 (21) ◽  
pp. 4312-4319 ◽  
Author(s):  
Zhi Yang ◽  
Minqiang Wang ◽  
Xiaohui Song ◽  
Guodong Yan ◽  
Yucheng Ding ◽  
...  
Keyword(s):  
Composite Film ◽  
High Performance ◽  
Operating Voltage ◽  
Large Area ◽  
Uv Photodetector ◽  
Uv Photodetectors ◽  
Nanowire Network ◽  
Ag Nanowires ◽  
Ag Nanowire

We have demonstrated that the embedded Ag nanowire network plays the important role of greatly improving responsivity and shortening response time in ZnO/Ag nanowires/ZnO composite uv photodetector.

A facile approach towards chemical modification of Ag nanowires by PEDOT as a transparent electrode for organic solar cells

2018 ◽  
Vol 6 (2) ◽  
pp. 312-319 ◽  
Author(s):  
Huanyu Zhou ◽  
Yilin Wang ◽  
Jingwen Zhang ◽  
Zoukangning Yu ◽  
Yaowen Li ◽  
...  
Keyword(s):  
Solar Cells ◽  
Chemical Modification ◽  
Organic Solar Cells ◽  
Electrostatic Interactions ◽  
Transparent Electrode ◽  
Ag Nanowires

A PEDOT:PSS:S-AgNWs transparent electrode has been prepared via in situ polymerization due to electrostatic interactions between PEDOT and the sulfonic groups in the PSS:S-AgNWs template.

scholarly journals Synthesis of monolithic shape-stabilized phase change materials with high mechanical stability via a porogen-assisted in situ sol–gel process

RSC Advances ◽  
2020 ◽  
Vol 10 (6) ◽  
pp. 3072-3083 ◽  
Author(s):  
Felix Marske ◽  
Juliana Martins de Souza e Silva ◽  
Ralf B. Wehrspohn ◽  
Thomas Hahn ◽  
Dirk Enke
Keyword(s):  
Phase Change ◽  
Phase Change Materials ◽  
Mechanical Stability ◽  
Sol Gel ◽  
High Loading ◽  
Core Shell ◽  
Loading Capacity ◽  
Sol Gel Process ◽  
High Mechanical Stability

Nanoconfinement of PCMs in core-shell-like silica structures via an inexpensive porogen-assisted sol–gel process to produce shape-stabilized PCMs as monoliths with high mechanical stability and high loading capacity.

scholarly journals Effect of a Urethane Acrylate-Based Photosensitive Coating on the Reliability of Ag Nanowire Transparent Electrodes

2021 ◽  
Vol 11 (5) ◽  
pp. 2162
Author(s):  
Heebo Ha ◽  
Yeongjae Seo ◽  
Paolo Matteini ◽  
Xue Qi ◽  
Sooman Lim ◽  
...  
Keyword(s):  
Electrical Properties ◽  
Mechanical Stability ◽  
Ambient Air ◽  
Optical Transmittance ◽  
Urethane Acrylate ◽  
Transparent Electrodes ◽  
Uv Curable ◽  
Photosensitive Resin ◽  
Ag Nanowires ◽  
Ag Nanowire

Due to the susceptibility of Ag nanowires to external mechanical and chemical damage, maintaining high optical performance and ambient and mechanical stability during the fabrication process is important for the industrial use of Ag nanowire transparent electrodes (TEs). In this study, urethane acrylate-based photosensitive resin (UAPR) is used as the coating material for Ag nanowire TEs to improve their optical transmittance, ambient stability, and resistance to external wiping damage. In the proposed method, UV-curable UAPR is coated onto Ag nanowire TEs using a simple doctor blade, forming a protective coating that increases the optical transmittance of the electrodes due to the refractive index of the UAPR between the air and the substrate. The UAPR coating successfully protects the Ag nanowires from corrosion in ambient air, with no significant change in their optical or electrical properties observed after 180 h of exposure to ambient air. Mechanical wiping tests also confirm that the UAPR coating is effective in protecting the Ag nanowires from external wiping damage, with no degradation of the optical or electrical properties observed after six wiping cycles.

Mechanical Stability of Passivation Films Deposited on Aluminium Substrates

1993 ◽  
Vol 309 ◽  
Author(s):  
P. Scafidi ◽  
M. Ignat ◽  
M. Dupeux
Keyword(s):  
Surface Roughness ◽  
Tensile Testing ◽  
Longitudinal Strain ◽  
Mechanical Stability ◽  
Substrate Surface ◽  
Crack Density ◽  
Testing Device ◽  
Substrate Surface Roughness ◽  
Scanning Electron

AbstractThe damage of films of two different passivation materials deposited on aluminium substrates was investigated. These systems were subjected to uniaxial stretch in an in situ tensile testing device adapted to a scanning electron microscope. Successive stages of crack development were observed: the failure is first in the film, then at the interface. The presence of a thermally grown aluminium oxide interlayer delays the decohesion process. The substrate surface roughness weakens the systems. The evolution of the crack density with the longitudinal strain was analysed and then fitted with a model based on a Weibull distribution function.

Elastic properties of nanolaminar Cr2AlC films and beams determined by in-situ scanning electron microscope bending tests

2016 ◽  
Vol 604 ◽  
pp. 85-89 ◽  
Author(s):  
Rolf Grieseler ◽  
Felix Theska ◽  
Thomas Stürzel ◽  
Bernd Hähnlein ◽  
Mike Stubenrauch ◽  
...  
Keyword(s):  
Electron Microscope ◽  
Scanning Electron Microscope ◽  
Elastic Properties ◽  
Bending Tests ◽  
Scanning Electron

The Use of Advanced Analytical Techniques for Characterization of the Chemical, Physical, and Crystallographic Nature of a Surface

1973 ◽  
Vol 31 ◽  
pp. 132-133 ◽  
Author(s):  
R. E. Herfert
Keyword(s):  
Surface Characterization ◽  
Analytical Techniques ◽  
X Ray Diffraction ◽  
Depth Of Penetration ◽  
X Ray ◽  
The Past ◽  
Transmission Electron ◽  
Scanning Electron

Studies of the nature of a surface, either metallic or nonmetallic, in the past, have been limited to the instrumentation available for these measurements. In the past, optical microscopy, replica transmission electron microscopy, electron or X-ray diffraction and optical or X-ray spectroscopy have provided the means of surface characterization. Actually, some of these techniques are not purely surface; the depth of penetration may be a few thousands of an inch. Within the last five years, instrumentation has been made available which now makes it practical for use to study the outer few 100A of layers and characterize it completely from a chemical, physical, and crystallographic standpoint. The scanning electron microscope (SEM) provides a means of viewing the surface of a material in situ to magnifications as high as 250,000X.

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