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.

scholarly journals Improved Long-Term Stability of Transparent Conducting Electrodes Based on Double-Laminated Electrosprayed Antimony Tin Oxides and Ag Nanowires

2017 ◽  
Vol 62 (2) ◽  
pp. 1275-1279
Author(s):  
B.-R. Koo ◽  
J.-W. Bae ◽  
H.-J. Ahn
Keyword(s):  
Tin Oxide ◽  
Optical Transmittance ◽  
Thermal Stabilities ◽  
Long Term Stability ◽  
Transparent Conducting ◽  
Ag Nanowires ◽  
Antimony Tin Oxide ◽  
Transparent Conducting Electrodes ◽  
Ag Nanowire

AbstractWe fabricated double-laminated antimony tin oxide/Ag nanowire electrodes by spin-coating and electrospraying. Compared to pure Ag nanowire electrodes and single-laminated antimony tin oxide/Ag nanowire electrodes, the double-laminated antimony tin oxide/Ag nanowire electrodes had superior transparent conducting electrode performances with sheet resistance ~19.8 Ω/□ and optical transmittance ~81.9%; this was due to uniform distribution of the connected Ag nanowires because of double lamination of the metallic Ag nanowires without Ag aggregation despite subsequent microwave heating at 250°C. They also exhibited excellent and superior long-term chemical and thermal stabilities and adhesion to substrate because double-laminated antimony tin oxide thin films act as the protective layers between Ag nanowires, blocking Ag atoms penetration.

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.

A Study on the Optical and Electrical Properties of GZO/Pt/GZO Multilayered Transparent Electrodes for Photonic Applications

2014 ◽  
Vol 905 ◽  
pp. 78-81
Author(s):  
Moon Ki Jeong ◽  
Hee Chul Lee
Keyword(s):  
Electrical Properties ◽  
Optical Transmittance ◽  
Grain Structure ◽  
Optical And Electrical Properties ◽  
Transparent Electrodes ◽  
Glass Substrates ◽  
Annealing Conditions ◽  
Post Annealing ◽  
Pt Films

We have proposed, prepared, and characterized Pt-inserted Ga-doped ZnO (GZO) transparent electrodes of GZO/Pt/GZO (GPG) multilayers on glass substrates. The GZO and Pt films were in-situ deposited by RF and DC sputtering without breaking vacuum, respectively. The grain structure and deposition rate of the GZO films grown on the Pt insertion layer were different from those of the GZO films sputtered on glass substrates. Pt-inserted GZO electrodes showed remarkably decreased resistivity although the thickness of the Pt layer was as thin as 9 nm. However, the optical transmittance of the GPG electrodes was severely degraded with an increasing thickness of the Pt layer. The structural, optical, and electrical properties of GPG multilayered transparent electrodes were affected by post-annealing conditions such as environment and temperature. That may be associated with an increase in crystallinity and inter-diffusion between Pt and GZO films.

Investigation of the Electrical, Optical, and Mechanical Properties of Ag Nanowire Conducting Electrode

2018 ◽  
Vol 775 ◽  
pp. 156-162 ◽  
Author(s):  
Dominic C. Sanchez ◽  
Mary Donnabelle L. Balela
Keyword(s):  
Sheet Resistance ◽  
Optical Transmittance ◽  
Polymer Substrates ◽  
Electrical Stress ◽  
Transparent Conducting ◽  
Ag Nanowires ◽  
Optical And Mechanical Properties ◽  
Transparent Conducting Electrodes ◽  
Ink Formulation ◽  
Ag Nanowire

Silver (Ag) nanowire having mean diameter and length of about 170.42 nm and 20.01 µm were prepared by the polyol process in ethylene glycol. Ag nanowires transparent conducting electrodes were then fabricated by depositing the Ag nanowires in ethanol and ink formulation on polymer substrates using a Meyer rod. The Ag nanowire electrodes exhibit an optical transmittance of about 68 % due to the large diameters of the as synthesized Ag nanowires. On the other hand, the sheet resistance was measured to be about 148 ohms/sq. When expose in air for 10 weeks, the sheet resistance increase to about 13 kohms/sq. Localized Joule heating during application of electrical stress of about 2 V for 7 days has resulted in the Ag nanowire degradation.

scholarly journals Sigmoidal Dependence of Electrical Conductivity of Thin PEDOT:PSS Films on Concentration of Linear Glycols as a Processing Additive

Materials ◽  
2021 ◽  
Vol 14 (8) ◽  
pp. 1975
Author(s):  
Hyeok Jo Jeong ◽  
Hong Jang ◽  
Taemin Kim ◽  
Taeshik Earmme ◽  
Felix Sunjoo Kim
Keyword(s):  
Electrical Conductivity ◽  
Ethylene Glycol ◽  
Triethylene Glycol ◽  
Optical Transmittance ◽  
Monomethyl Ether ◽  
Additive Concentration ◽  
Transparent Electrodes ◽  
Ethylene Glycol Monomethyl Ether ◽  
Conductivity Enhancement ◽  
Poly Styrene Sulfonate

We investigate the sigmoidal concentration dependence of electrical conductivity of poly(3,4-ethylenedioxythiophene):poly(styrene sulfonate) (PEDOT:PSS) processed with linear glycol-based additives such as ethylene glycol (EG), diethylene glycol (DEG), triethylene glycol (TEG), hexaethylene glycol (HEG), and ethylene glycol monomethyl ether (EGME). We observe that a sharp transition of conductivity occurs at the additive concentration of ~0.6 wt.%. EG, DEG, and TEG are effective in conductivity enhancement, showing the saturation conductivities of 271.8, 325.4, and 326.2 S/cm, respectively. Optical transmittance and photoelectron spectroscopic features are rather invariant when the glycols are used as an additive. Two different figures of merit, calculated from both sheet resistance and optical transmittance to describe the performance of the transparent electrodes, indicate that both DEG and TEG are two most effective additives among the series in fabrication of transparent electrodes based on PEDOT:PSS films with a thickness of ~50–60 nm.

Transparent water-based UV-curable urethane acrylate ink-jet ink

2021 ◽  
pp. 1-11
Author(s):  
Atasheh Soleimani-Gorgani ◽  
Farhood Najafi ◽  
Fatemeh Mohammadrezaei ◽  
Behzad Shirkavand Hadavand
Keyword(s):  
Urethane Acrylate ◽  
Uv Curable ◽  
Ink Jet ◽  
Water Based ◽  
Transparent Water

STRUCTURAL, OPTICAL AND ELECTRICAL PROPERTIES OF Al-DOPED ZnO TRANSPARENT CONDUCTING OXIDE FOR SOLAR CELL APPLICATIONS

2011 ◽  
Vol 04 (04) ◽  
pp. 401-405 ◽  
Author(s):  
W. CHER ◽  
S. YICK ◽  
S. XU ◽  
Z. J. HAN ◽  
K. OSTRIKOV
Keyword(s):  
Thin Films ◽  
Solar Cell ◽  
Electrical Properties ◽  
Transparent Conducting Oxide ◽  
Optical Transmittance ◽  
Nitrogen Atmosphere ◽  
Optical And Electrical Properties ◽  
Glass Substrates ◽  
Optimal Annealing Temperature ◽  
Post Synthesis

Al -doped zinc oxide (AZO) thin films are deposited onto glass substrates using radio-frequency reactive magnetron sputtering and the improvements in their physical properties by post-synthesis thermal treatment are reported. X-ray diffraction spectra show that the structure of films can be controlled by adjusting the annealing temperatures, with the best crystallinity obtained at 400°C under a nitrogen atmosphere. These films exhibit improved quality and better optical transmittance as indicated by the UV-Vis spectra. Furthermore, the sheet resistivity is found to decrease from 1.87 × 10-3 to 5.63 × 10-4Ω⋅cm and the carrier mobility increases from 6.47 to 13.43 cm2 ⋅ V-1 ⋅ s-1 at the optimal annealing temperature. Our results demonstrate a simple yet effective way in controlling the structural, optical and electrical properties of AZO thin films, which is important for solar cell applications.

scholarly journals Fabrication of New Liquid Crystal Device Using Layer-by-Layer Thin Film Process

Processes ◽  
2018 ◽  
Vol 6 (8) ◽  
pp. 108 ◽  
Author(s):  
Gitae Moon ◽  
Wonjun Jang ◽  
Intae Son ◽  
Hyun Cho ◽  
Yong Park ◽  
...  
Keyword(s):  
Liquid Crystal ◽  
Indium Tin Oxide ◽  
Film Growth ◽  
Mechanical Stability ◽  
Liquid Crystal Display ◽  
Layer By Layer ◽  
Transparent Electrodes ◽  
Ito Electrode ◽  
Display Performance ◽  
Layer Thin Film

Indium tin oxide (ITO) transparent electrodes are troubled with high cost and poor mechanical stability. In this study, layer-by-layer (LBL)-processed thin films with single-walled carbon nanotubes (SWNTs) exhibited high transparency and electrical conductivity as a candidate for ITO replacement. The repetitive deposition of polycations and stabilized SWNTs with a negative surfactant exhibits sufficiently linear film growth and high optoelectronic performance to be used as transparent electrodes for vertically aligned (VA) liquid crystal display (LCD) cells. The LC molecules were uniformly aligned on the all of the prepared LBL electrodes. VA LCD cells with SWNT LBL electrodes exhibited voltage-transmittance (V-T) characteristics similar to those with the conventional ITO electrodes. Although the response speeds were slower than the LCD cell with the ITO electrode, as the SWNT layers increased, the display performance was closer to the LCD cells with conventional ITO electrode. This work demonstrated the good optoelectronic performance and alignment compatibility with LC molecules of the SWNT LBL assemblies, which are potential alternatives to ITO films as transparent electrodes for LCDs.

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