scholarly journals Effect of Flash Light Sintering on Silver Nanowire Electrode Networks

Materials ◽  
2020 ◽  
Vol 13 (2) ◽  
pp. 404 ◽  
Author(s):  
Dae-Jin Yang ◽  
Seyun Kim ◽  
Hiesang Sohn ◽  
Kyoung-Seok Moon ◽  
Woo Hyeong Sim ◽  
...  
Keyword(s):  
Optimum Condition ◽  
Thermal Annealing ◽  
Mass Production ◽  
Electrical Resistance ◽  
Phase Structure ◽  
Silver Nanowires ◽  
Silver Nanowire ◽  
Sintering Process ◽  
Fast Process ◽  
Nanowire Networks

We investigated the flash light sintering process to effectively reduce electrical resistance in silver nanowire networks. The optimum condition of the flash light sintering process reduces the electrical resistance by ~20%, while the effect of the conventional thermal annealing processes is rather limited for silver nanowire networks. After flash light sintering, the morphology of the junction between the silver nanowires changes to a mixed-phase structure of the two individual nanowires. This facile and fast process for silver nanowire welding could be highly advantageous to the mass production of silver nanowire networks.

Characteristics of polyurethane nanowebs treated with silver nanowire solutions as strain sensors

2017 ◽  
Vol 88 (11) ◽  
pp. 1215-1225 ◽  
Author(s):  
Inhwan Kim ◽  
Eugene Lee ◽  
Eunji Jang ◽  
Gilsoo Cho
Keyword(s):  
Electrical Resistance ◽  
Silver Nanowires ◽  
Chemical Properties ◽  
Silver Nanowire ◽  
Bending Rigidity ◽  
Force Microscopy ◽  
Atomic Force ◽  
Microscopy Analysis ◽  
Release Field ◽  
Nanowire Networks

This study presents a simple methodology to fabricate a conductive polyurethane nanoweb for use as a textile strain sensor. The purpose of this paper is to (1) fabricate an electrically-conductive polyurethane nanoweb coated with silver nanowires and investigate changes in its electrical resistance in relation to the amount of silver nanowires, (2) investigate changes in the electrical resistance of the polyurethane nanowebs under stretching, (3) evaluate the mechanical and chemical properties of the treated nanowebs, and (4) observe the breathability of the coated nanowebs. Silver nanowires dispersed in ethanol (AgNW) were diluted as necessary by addition of ethanol. Electrical conductivity was imparted to the polyurethane nanowebs by a pour-coating process utilizing AgNWs. The initial electrical resistance of the specimens and the changes with stretching up to 20% and release were recorded, and the data were analyzed. The electrical resistance decreased in accordance with the AgNW concentration. The electrical resistance increased under stretch and decreased upon release. Field-emission scanning electron microscopy with energy dispersive spectroscopy and atomic force microscopy analysis displayed the polyurethane, the silver nanowire attachment to the fibers, and the silver nanowire networks. According to Fourier transform infrared spectroscopy analysis, hydrogen bonds derived from the treatment with ethanol generated a crimp structure on the polyurethane nanowebs. Both tensile strength and bending rigidity increased after the treatment. Breathability tests showed that the specimens had semi-windproof and good water vapor transmission properties as textiles.

Thermal annealing effects on silver nanowire networks

2014 ◽  
Vol 11 (9/10/11) ◽  
pp. 785 ◽  
Author(s):  
G. Giusti ◽  
D.P. Langley ◽  
M. Lagrange ◽  
R. Collins ◽  
C. Jimenez ◽  
...  
Keyword(s):  
Thermal Annealing ◽  
Silver Nanowire ◽  
Annealing Effects ◽  
Nanowire Networks

Well-controlled silver nanowire/graphene hybrid from full solution process

2016 ◽  
Vol 51 (8) ◽  
pp. 1149-1154 ◽  
Author(s):  
Jeong Eon Park ◽  
Dong Hack Suh
Keyword(s):  
Mass Production ◽  
Silver Nanowires ◽  
Solution Process ◽  
Silver Nanowire ◽  
Ultrasonic Power ◽  
Two Dimensional ◽  
One Dimensional ◽  
Conductive Materials ◽  
Full Solution

The surface of a one-dimensional silver nanowire was covered with amphiphilic materials, N-(2-aminoethyl)-3a-hydroxy-5b-cholan-24-amide, and patched with two-dimensional graphene to form individually controlled hybrid. Graphene was prepared from ultrasonic in o-dichlorobenzene without any additives. As N-(2-aminoethyl)-3a-hydroxy-5b-cholan-24-amide between silver nanowires and graphene tightly held each other, silver nanowire was individually covered with graphene without introducing ultrasonic power, the necessary process to evenly mix silver nanowires and graphene but lead to damage and oxidize silver nanowires. Although the quality of graphene was inferior, the properties of hybrid were superior compared with pristine silver nanowire/graphene except introducing N-(2-aminoethyl)-3a-hydroxy-5b-cholan-24-amide. All processes to form the hybrid were carried out in solution. Therefore, this makes the processes less expensive and more useful and opens up opportunities for the mass production for conductive materials.

scholarly journals Silver Nanowires: Uniformly Interconnected Silver-Nanowire Networks for Transparent Film Heaters (Adv. Funct. Mater. 10/2013)

2013 ◽  
Vol 23 (10) ◽  
pp. 1225-1225 ◽  
Author(s):  
TaeYoung Kim ◽  
Yeon Won Kim ◽  
Ho Seok Lee ◽  
Hyeongkeun Kim ◽  
Woo Seok Yang ◽  
...  
Keyword(s):  
Silver Nanowires ◽  
Silver Nanowire ◽  
Transparent Film ◽  
Nanowire Networks

Optimization of silver nanowire-based transparent electrodes: effects of density, size and thermal annealing

Nanoscale ◽  
2015 ◽  
Vol 7 (41) ◽  
pp. 17410-17423 ◽  
Author(s):  
M. Lagrange ◽  
D. P. Langley ◽  
G. Giusti ◽  
C. Jiménez ◽  
Y. Bréchet ◽  
...  
Keyword(s):  
Electrical Properties ◽  
Thermal Annealing ◽  
Silver Nanowire ◽  
Network Density ◽  
Transparent Electrodes ◽  
Flexible Applications ◽  
Nanowire Networks ◽  
Effects Of Density

This article demonstrates a method to calculate the opto-electrical properties of silver nanowire networks used as transparent electrodes. The electical properties can be adjusted by choosing suitable nanowire dimensions and network density for their use in several flexible applications.

Roll-to-roll printed silver nanowires for increased stability of flexible ITO-free organic solar cell modules

Nanoscale ◽  
2016 ◽  
Vol 8 (1) ◽  
pp. 318-326 ◽  
Author(s):  
Gisele A. dos Reis Benatto ◽  
Bérenger Roth ◽  
Michael Corazza ◽  
Roar R. Søndergaard ◽  
Suren A. Gevorgyan ◽  
...  
Keyword(s):  
Solar Cell ◽  
Organic Solar Cell ◽  
Silver Nanowires ◽  
Silver Nanowire ◽  
Test Results ◽  
Roll To Roll ◽  
Front Electrode ◽  
Cell Modules ◽  
The Stability ◽  
Nanowire Networks

We report the stability test results of ITO-free OPV modules using roll-to-roll printed silver nanowire networks as front electrode.

scholarly journals Humidity assisted annealing technique for transparent conductive silver nanowire networks

RSC Advances ◽  
2015 ◽  
Vol 5 (25) ◽  
pp. 19659-19665 ◽  
Author(s):  
Nelli Weiß ◽  
Lars Müller-Meskamp ◽  
Franz Selzer ◽  
Ludwig Bormann ◽  
Alexander Eychmüller ◽  
...  
Keyword(s):  
Water Vapor ◽  
Sheet Resistance ◽  
Silver Nanowires ◽  
Silver Nanowire ◽  
Nanowire Networks

The capacity of polyvinylpyrrolidone (PVP) to adsorb water vapor was used to decrease the sheet resistance of silver nanowires (AgNW) based electrodes.

scholarly journals Figures of Merit for High-Performance Transparent Electrodes Using Dip-Coated Silver Nanowire Networks

2012 ◽  
Vol 2012 ◽  
pp. 1-7 ◽  
Author(s):  
Sergio B. Sepulveda-Mora ◽  
Sylvain G. Cloutier
Keyword(s):  
Sheet Resistance ◽  
High Performance ◽  
Silver Nanowires ◽  
Optical Transmittance ◽  
Dip Coating ◽  
Silver Nanowire ◽  
Figures Of Merit ◽  
The One ◽  
Nanowire Networks ◽  
Dip Coating Technique

Homogeneous, highly conductive, and transparent silver nanowire thin films were fabricated using a simple dip-coating technique and a subsequent annealing step. Silver nanowires with two different average lengths (11 μm and 19 μm) were used in the sample preparation to analyze the dependence of the sheet resistance on the length of the one-dimensional nanostructures. The best sample had a sheet resistance of 10.2 Ω/□with optical transmittance of 89.9%. Two figures of merit, the electrical to optical conductivity ratio(σDC/σOP)andϕTC, were obtained for all the samples in order to measure their performance as transparent conductive materials.

Recent progress in silver nanowire networks for flexible organic electronics

2020 ◽  
Vol 8 (14) ◽  
pp. 4636-4674 ◽  
Author(s):  
Wenting Li ◽  
Huan Zhang ◽  
Shengwei Shi ◽  
Jinxin Xu ◽  
Xin Qin ◽  
...  
Keyword(s):  
Organic Electronics ◽  
Recent Progress ◽  
Silver Nanowires ◽  
Silver Nanowire ◽  
Film Fabrication ◽  
Nanowire Networks

Silver nanowires for flexible organic electronics have been comprehensively summarized from synthesis, film fabrication, characterization and applications to perspectives.

Characterization and exploration of polyurethane nanofiber webs coated with graphene as a strain gauge

2019 ◽  
Vol 89 (23-24) ◽  
pp. 4980-4991 ◽  
Author(s):  
Eunji Jang ◽  
Hang Liu ◽  
Gilsoo Cho
Keyword(s):  
Electrical Resistance ◽  
Silver Nanowires ◽  
Surface Characteristics ◽  
Coated Specimen ◽  
Silver Nanowire ◽  
Gauge Factor ◽  
Doctor Blade ◽  
Graphene Coating ◽  
Microscopy Image ◽  
Coating Methods

The objectives of this study were as follows: (a) to compare two coating methods (i.e., brush painting and doctor blade coating) for applying graphene onto polyurethane nanofiber webs (PU NWs) for developing e-textiles; (b) to investigate the surface characteristics and chemical and mechanical properties of the specimens based on the coating conditions; (c) to find the relationship between the electrical resistances of the specimen and the amounts of graphene in the PU NWs; and (d) to evaluate electrical resistance changes when specimens are physically strained to calculate the gauge factors. The linear resistances of the graphene-coated PU NWs were less than 600 Ω/cm on all specimens. The PU NW linear resistances are about 1–500 Ω/cm when coated with silver nanowires and about 1000–7000 Ω/cm when coated with polypyrrole. The graphene-coated specimen linear resistances are lower than those of the polypyrrole-coated specimens and higher than those of the silver nanowire-coated specimens. As has been demonstrated in other studies, brush painting is a simple fabrication process, but the field emission scanning electron microscopy image showed that it did not produce uniform coatings compared to the doctor blade method. However, it was found that it is possible to fabricate e-textiles with linear resistances of less than 100 Ω/cm by merely using repetitive brush painting. Fourier transform infrared spectroscopy analysis confirmed the peak bands of urethane and the -NH- bending peak to investigate the graphene coating conditions. The tensile strength of the graphene-coated specimen was much lower than that of the untreated, but the elongation/strain at rupture was higher than that of the untreated specimen. This result shows that the graphene-coated specimens are strained to a smaller force than the untreated one. Furthermore, this indicates that graphene coating induced the changes of the tensile properties of the specimens. The electrical resistances are varied depending on the graphene coating uniformity. Using the doctor blade method, the electrical resistance values of the specimens were slightly lower than those for the brush painted specimens. The gauge factor values of the specimens were examined by the stretch and release test. The highest gauge factor was 97.24 (D2.6) and the lowest was 20.54 (D2.2).

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