scholarly journals Highly Transparent Conducting Electrodes Based on a Grid Structure of Silver Nanowires

Coatings ◽  
2020 ◽  
Vol 11 (1) ◽  
pp. 30
Author(s):  
Jinseon You ◽  
Sung Min Lee ◽  
Hong-Sik Eom ◽  
Suk Tai Chang
Keyword(s):  
Sheet Resistance ◽  
Indium Tin Oxide ◽  
Figure Of Merit ◽  
Isopropyl Alcohol ◽  
Uv Light ◽  
Silver Nanowires ◽  
Deposition Process ◽  
Grid Structure ◽  
Transparent Conducting ◽  
Transparent Conducting Electrodes

Transparent conducting electrodes (TCEs) formed with silver nanowires (AgNWs) have attracted attention as substitutes for indium tin oxide (ITO). However, the randomly deposited AgNW film performs poorly in terms of the transmittance and sheet resistance to serve as a substitute of ITO. To improve the performance of the AgNW film, we fabricated a grid-patterned AgNW by modifying the surface energy of the substrate. The hydrophobized surface was selectively etched by UV light through a quartz chrome mask, and a suspension of AgNWs in isopropyl alcohol/ethylene glycol mixture was coated on the substrate by a meniscus dragging deposition process. The grid-patterned AgNW film has a lower percolation threshold and a 13% higher figure-of-merit value compared to the randomly deposited AgNW film. The transparent thin films with a grid structure of AgNWs exhibit the high electrical conductivity with a sheet resistance of 33 Ohm/sq at a transmittance of 92.7% (λ = 550 nm).

scholarly journals Improved Sheet Resistance of Nanofiber-Based Transparent Conducting Electrodes Using Silver Nanowires

Polymers ◽  
2021 ◽  
Vol 13 (21) ◽  
pp. 3856
Author(s):  
Sujin Cha ◽  
Byeolyi Choi ◽  
Eugene Lee ◽  
Gilsoo Cho
Keyword(s):  
Electrical Conductivity ◽  
Sheet Resistance ◽  
Polyvinylidene Fluoride ◽  
Silver Nanowires ◽  
Chemical Properties ◽  
Light Transmittance ◽  
Transparent Conducting ◽  
Poly Styrene Sulfonate ◽  
Transparent Conducting Electrodes ◽  
And Chemical Properties

There is an increased need for research on flexible transparent electrodes (FTEs) because they are critical to next-generation electronic devices, such as wearable computers. In this study, highly conductive transparent conducting electrodes, based on polyvinylidene fluoride (PVDF) nanofiber webs treated with poly(3,4-ethylenedioxythiophene):poly(styrene sulfonate) (PEDOT:PSS) and silver nanowires (AgNWs), were successfully fabricated. Transparent conducting electrodes (TCEs) were obtained by a brush-painting process using different weight ratios of a AgNWs to PEDOT:PSS solution, and the surface, electrical, optical, and chemical properties, as well as the tensile strength of the samples, were determined. It was found that the electrical conductivity of the samples improved as the AgNW content increased, but the light transmittance decreased. In this work, there was a slight decrease in the optical properties and a considerable increase in the electrical properties due to the hybridization of AgNWs and PEDOT:PSS, compared to using only PEDOT:PSS. When considering both transparency and electrical conductivity, which are essential parameters of TCEs, sample PA2, which was treated by mixing AgNWs and PEDOT:PSS/dimethyl sulfoxide (DMSO) in a ratio of 1:5 (16.67 wt% of AgNWs), was found to be the best sample, with a sheet resistance of 905 Ω/cm2 and light transmittance of 79%.

scholarly journals Synthesis and highly effective purification of silver nanowires to enhance transmittance at low sheet resistance with simple polyol and scalable selective precipitation method

RSC Advances ◽  
2017 ◽  
Vol 7 (26) ◽  
pp. 16139-16148 ◽  
Author(s):  
Molla Bahiru Gebeyehu ◽  
Tolesa Fita Chala ◽  
Shao-Yen Chang ◽  
Chang-Mou Wu ◽  
Jiunn-Yih Lee
Keyword(s):  
Sheet Resistance ◽  
Tin Oxide ◽  
Indium Tin Oxide ◽  
Silver Nanowires ◽  
Precipitation Method ◽  
High Quality ◽  
Conducting Film ◽  
Selective Precipitation ◽  
Transparent Conducting Film ◽  
Transparent Conducting

The high quality transparent conducting film (TCF) at a low sheet resistance of uniform and purified silver nanowires (AgNWs) have been successfully produced, the optoelectronic performance, which exceeds that of indium tin oxide (ITO).

scholarly journals Effects of Concentration and Spin Speed on the Optical and Electrical Properties of Silver Nanowire Transparent Electrodes

Materials ◽  
2021 ◽  
Vol 14 (9) ◽  
pp. 2219
Author(s):  
Xiaopeng Li ◽  
Jiayue Zhou ◽  
Dejun Yan ◽  
Yong Peng ◽  
Yong Wang ◽  
...  
Keyword(s):  
Sheet Resistance ◽  
Spin Coating ◽  
Figure Of Merit ◽  
Silver Nanowires ◽  
Solution Concentration ◽  
Ethanol Solution ◽  
Silver Nanowire ◽  
Optical And Electrical Properties ◽  
Transparent Electrodes ◽  
Spin Speed

In this paper, silver nanowires (AgNWs) with a diameter of 40 nm and a length of 45 μm were dispersed into an ethanol solution to prepare AgNW solutions with concentrations of 1, 2, and 3 mg/mL, respectively. The AgNW solutions were then deposited on a glass substrate using spin-coating at 1000, 2000, and 3000 rpm for 45 s, respectively, to prepare transparent electrodes. The results showed that the distribution of AgNWs on the substrate increased in density with the increase in the AgNW solution concentration and the decrease in spin speed. The effect of concentration on the distribution of AgNWs was greater than that of the spin speed. The transmittance of each electrode was between 84.19% and 88.12% at 550 nm, the average sheet resistance was between 20.09 and 358.11 Ω/sq, the highest figure of merit (FoM) was 104.42, and the lowest haze value was 1.48%. The electrode prepared at 1000 rpm with a concentration of 2 mg/mL and that prepared at 3000 rpm with a concentration of 3 mg/mL were very similar in terms of the average sheet resistance, transmittance at 550 nm, FoM, and haze value; thus, these two electrodes could be considered equivalent. The haze value of the electrode was positively correlated with the spin speed at low concentration, but that relationship became inverse as the concentration rose. For the AgNWs used in this experiment with an aspect ratio of 1125, the concentration of the AgNW solution should reach at least 2 mg/mL to ensure that the FoM of the electrode is greater than 35.

scholarly journals Correction: High performing AgNW transparent conducting electrodes with a sheet resistance of 2.5 Ω Sq−1 based upon a roll-to-roll compatible post-processing technique

Nanoscale ◽  
2019 ◽  
Vol 11 (12) ◽  
pp. 5771-5771
Author(s):  
D. Kumar ◽  
V. Stoichkov ◽  
E. Brousseau ◽  
G. C. Smith ◽  
J. Kettle
Keyword(s):  
Sheet Resistance ◽  
Processing Technique ◽  
Post Processing ◽  
High Performing ◽  
Roll To Roll ◽  
Transparent Conducting ◽  
Transparent Conducting Electrodes

Correction for ‘High performing AgNW transparent conducting electrodes with a sheet resistance of 2.5 Ω Sq−1 based upon a roll-to-roll compatible post-processing technique’ by D. Kumar et al., Nanoscale, 2019, DOI: 10.1039/c8nr07974a.

Electroless Deposition of Silver Nanowires Using Waste Ethylene Glycol for Highly Transparent Flexible Conducting Electrodes

2018 ◽  
Vol 775 ◽  
pp. 254-259
Author(s):  
Nathaniel de Guzman ◽  
Mary Donnabelle L. Balela
Keyword(s):  
Ethylene Glycol ◽  
Indium Tin Oxide ◽  
Silver Nanowires ◽  
Average Length ◽  
Average Diameter ◽  
Optical Transmittance ◽  
Transparent Conductive Electrode ◽  
Transparent Conducting ◽  
Better Than ◽  
Excellent Stability

High aspect ratio silver nanowires (AgNWs) with an average length of 40 μm and average diameter of 88 nm were successfully synthesized using waste ethylene glycol as solvent and reducing agent. Silver nanowires with an average length and diameter of 32 μm and 122 nm, were produced after the third cycle of being reused. A transparent conducting film with a sheet resistance of 69 Ω/sq and optical transmittance of 91% was fabricated by Meyer rod coating an ink formulation of AgNWs dispersed in hydroxyethyl celullose (HEC)/methanol/deionized water. The low resistance of the AgNW networks was maintained even after 1000 bending cycles due to HEC acting as binder for the nanowires. The AgNWHEC transparent conductive electrode performed better than bare AgNWs and indium tin oxide (ITO) on polyethylene terephthalate (PET) substrate after several bending cycles. The AgNW-HEC electrode also showed excellent stability against corrosion.

An embedded-PVA@Ag nanofiber network for ultra-smooth, high performance transparent conducting electrodes

2017 ◽  
Vol 5 (17) ◽  
pp. 4198-4205 ◽  
Author(s):  
Soram Bobby Singh ◽  
Yibin Hu ◽  
Tolendra Kshetri ◽  
Nam Hoon Kim ◽  
Joong Hee Lee
Keyword(s):  
Tin Oxide ◽  
Indium Tin Oxide ◽  
High Performance ◽  
Weather Conditions ◽  
Solar Panels ◽  
Transparent Conducting ◽  
Transparent Conducting Electrodes ◽  
Ito Films

Flexible transparent conducting electrodes (TCEs) in replacement of brittle indium tin oxide (ITO) films are of ultimate importance in the production of flexible and stretchable displays, lighting devices, and solar panels with the ability to resist harsh weather conditions.

scholarly journals High performing AgNW transparent conducting electrodes with a sheet resistance of 2.5 Ω Sq−1 based upon a roll-to-roll compatible post-processing technique

Nanoscale ◽  
2019 ◽  
Vol 11 (12) ◽  
pp. 5760-5769 ◽  
Author(s):  
D. Kumar ◽  
V. Stoichkov ◽  
E. Brousseau ◽  
G. C. Smith ◽  
J. Kettle
Keyword(s):  
Silver Nanowires ◽  
Processing Technique ◽  
Environmental Stability ◽  
Electrical Performance ◽  
Post Processing ◽  
High Performing ◽  
Roll To Roll ◽  
Transparent Conducting ◽  
Transparent Conducting Electrodes ◽  
Performance Surface

A report of transparent and conducting silver nanowires (AgNWs) that produce remarkable electrical performance, surface planarity and environmental stability is given.

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