scholarly journals High-Performance Flexible Transparent Electrodes Fabricated via Laser Nano-Welding of Silver Nanowires

Crystals ◽  
2021 ◽  
Vol 11 (8) ◽  
pp. 996
Author(s):  
Tao Wang ◽  
Yinzhou Yan ◽  
Liye Zhu ◽  
Qian Li ◽  
Jing He ◽  
...  
Keyword(s):  
Sheet Resistance ◽  
High Performance ◽  
Silver Nanowires ◽  
Pulsed Laser ◽  
Localized Surface Plasmon ◽  
Great Promise ◽  
Organic Substrates ◽  
Transparent Electrodes ◽  
High Flexibility ◽  
Flexible Transparent Electrodes

Silver nanowires (Ag-NWs), which possess a high aspect ratio with superior electrical conductivity and transmittance, show great promise as flexible transparent electrodes (FTEs) for future electronics. Unfortunately, the fabrication of Ag-NW conductive networks with low conductivity and high transmittance is a major challenge due to the ohmic contact resistance between Ag-NWs. Here we report a facile method of fabricating high-performance Ag-NW electrodes on flexible substrates. A 532 nm nanosecond pulsed laser is employed to nano-weld the Ag-NW junctions through the energy confinement caused by localized surface plasmon resonance, reducing the sheet resistance and connecting the junctions with the substrate. Additionally, the thermal effect of the pulsed laser on organic substrates can be ignored due to the low energy input and high transparency of the substrate. The fabricated FTEs demonstrate a high transmittance (up to 85.9%) in the visible band, a low sheet resistance of 11.3 Ω/sq, high flexibility and strong durability. The applications of FTEs to 2D materials and LEDs are also explored. The present work points toward a promising new method for fabricating high-performance FTEs for future wearable electronic and optoelectronic devices.

Highly flexible transparent electrodes using a silver nanowires-embedded colorless polyimide film via chemical modification

RSC Advances ◽  
2016 ◽  
Vol 6 (36) ◽  
pp. 30331-30336 ◽  
Author(s):  
Dasom Lee ◽  
Doo-Young Youn ◽  
Zhenhao Luo ◽  
Il-Doo Kim
Keyword(s):  
Chemical Modification ◽  
Sheet Resistance ◽  
Silver Nanowires ◽  
Polyimide Film ◽  
Optical Transparency ◽  
Transparent Electrodes ◽  
Flexible Transparent Electrodes

AgNWs-embedded colorless polyimide encapsulated by a ZnO layer via chemical modification of a CPI film. The ZnO/AgNWs-embedded CPI substrate exhibited a low sheet resistance of 24 Ω sq−1 while maintaining a high optical transparency of 81%.

Unraveling the solvent induced welding of silver nanowires for high performance flexible transparent electrodes

Nanoscale ◽  
2018 ◽  
Vol 10 (27) ◽  
pp. 12981-12990 ◽  
Author(s):  
Kui Zhang ◽  
Jia Li ◽  
Yunsheng Fang ◽  
Beibei Luo ◽  
Yanli Zhang ◽  
...  
Keyword(s):  
High Performance ◽  
Silver Nanowires ◽  
Transparent Electrode ◽  
Transparent Electrodes ◽  
Flexible Transparent Electrodes

Volatile solvent mists as a “zipper” to weld silver nanowires and fix them on a substrate tightly for transparent electrode application.

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.

Flexible Transparent Electrodes Based on Silver Nanowires: Material Synthesis, Fabrication, Performance, and Applications

2019 ◽  
Vol 4 (10) ◽  
pp. 1900413 ◽  
Author(s):  
Yuwen Zhu ◽  
Yujun Deng ◽  
Peiyun Yi ◽  
Linfa Peng ◽  
Xinmin Lai ◽  
...  
Keyword(s):  
Silver Nanowires ◽  
Transparent Electrodes ◽  
Material Synthesis ◽  
Flexible Transparent Electrodes

Fabrication of high-performance flexible transparent conductive silver nanowire films using spray coating

2021 ◽  
Vol 35 (06) ◽  
pp. 2150086
Author(s):  
Y. H. Wang ◽  
X. L. Wu ◽  
X. Yang ◽  
H. Xie
Keyword(s):  
Sheet Resistance ◽  
High Performance ◽  
Silver Nanowires ◽  
Spray Coating ◽  
Silver Nanowire ◽  
Pressure Treatment ◽  
Experimental Conditions ◽  
Process Effects ◽  
Coating Method ◽  
Mechanical Bending

Flexible silver nanowires (AgNWs) transparent conductive films (TCFs) were fabricated on poly(ethylene terephthalate) (PET) substrate by using spray coating process. Effects of concentration and amount of AgNWs suspension on the performances of optoelectronics and microstructures of AgNWs TCFs were investigated. The experimental results demonstrate that as the increase of both of concentration and amount of AgNWs suspension, the sheet resistance and nonuniformity factor of the sheet resistance (NUF) and transmittance of AgNWs TCFs decrease and the root mean square (RMS) roughness and figure of merit (FoM) and haze of the AgNWs TCFs increase, respectively, due to the increase of the deposition density of AgNWs on the substrate. The flexible AgNWs TCFs with excellent comprehensive performance, which is a NUF of 0.48, haze of 1.94%, FoM of 148.5, transmittance of 84.5%, and sheet resistance of [Formula: see text], can be obtained under the proper experimental conditions. The pressure treatment can improve the electrical conductivity of AgNWs TCFs due to the increase of contact area and the decrease of contact resistance. AgNWs TCF with pressure treatment also exhibits excellent reliability against mechanical bending over 1000 cycles. Our works demonstrate that flexible AgNWs TCFs with high performance can be obtained by using spray coating method, which is one of the common techniques for preparing coatings or films.

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