scholarly journals Flexible, Transparent, and Conductive Film Based on Random Networks of Ag Nanowires

2013 ◽  
Vol 2013 ◽  
pp. 1-6 ◽  
Author(s):  
Shunhua Wang ◽  
Xu Zhang ◽  
Weiwei Zhao
Keyword(s):  
Sheet Resistance ◽  
Optical Transmittance ◽  
Surface Resistivity ◽  
Random Networks ◽  
Transparent Electronics ◽  
Heating Systems ◽  
Conductive Films ◽  
Conductive Film ◽  
Ag Nanowires ◽  
Resistance Decrease

Flexible, transparent, and conductive films based on random networks of Ag nanowires were prepared by vacuum-filtrating method. The size of Ag nanowires prepared by hydrothermal method is uniform, with a relatively smaller diameter and a longer length, thereby achieving a high aspect ratio (>1000). The films fabricated by Ag nanowires exhibit the excellent transparency with a 92% optical transmittance and a low surface resistivity of 11 Ωsq−1. Importantly, both the transmittance and sheet resistance decrease with the increasing of the Ag nanowires contents. When the contents of Ag nanowires are up to 200 mg/m2especially, the surface resistivity quickly falls below 5 Ωsq−1. Also, these films are robust, which have almost no change in sheet resistance after the repeating bends over 200 cycles. These encouraging results may have a potential application in flexible and transparent electronics and other heating systems.

A low-cost, highly-conductive polyvinyl alcohol flexible film with Ag-microsheets and AgNWs as fillers

RSC Advances ◽  
2016 ◽  
Vol 6 (84) ◽  
pp. 80905-80909 ◽  
Author(s):  
Yongyun Mao ◽  
Junmei Guo ◽  
Changyi Hu ◽  
Hongwei Yang ◽  
Yuwen Yang ◽  
...  
Keyword(s):  
Polyvinyl Alcohol ◽  
Low Cost ◽  
High Conductivity ◽  
Conductive Films ◽  
Flexible Film ◽  
Conductive Film ◽  
Ag Nanowires

Low-cost, high-conductivity flexible conductive films were fabricated using Ag-microsheets, Ag-nanowires (AgNWs) and polyvinyl alcohol (PVA) as conducting agents. The flexible conductive film shows good conductivity under stretching.

scholarly journals Fibers and Conductive Films Using Silver Nanoparticles and Nanowires by Near-Field Electrospinning Process

2015 ◽  
Vol 2015 ◽  
pp. 1-5 ◽  
Author(s):  
Cheng-Tang Pan ◽  
Tsung-Lin Yang ◽  
Yi-Chian Chen ◽  
Cherng-Yuh Su ◽  
Shin-Pon Ju ◽  
...  
Keyword(s):  
Thin Films ◽  
Silver Nanoparticles ◽  
Sheet Resistance ◽  
Silver Nanowires ◽  
Near Field ◽  
Electrospinning Process ◽  
Conductive Films ◽  
Conductive Film ◽  
The Future ◽  
Transparent Conductive Electrodes

The silver nanowires (AgNWs) and silver nanoparticles (AgNPs) were synthesized. With near-field electrospinning (NFES) process, fibers and thin films with AgNPs and AgNWs were fabricated. In the NFES process, 10 k voltage was applied and the AgNPs and AgNWs fibers can be directly orderly collected without breaking and bending. Then, the characteristics of the fibers were analyzed by four-point probe and EDS. The conductive film was analyzed. When the thickness of films with AgNWs and AgNPs was 1.6 µm, the sheet resistance of films was 0.032 Ω/sq which was superior to that of the commercial ITO. The transmissivity of films was analyzed. The transmissivity was inversely proportional to sheet resistance of the films. In the future, the fibers and films can be used as transparent conductive electrodes.

Fabrication of silver nanowire transparent conductive films with an ultra-low haze and ultra-high uniformity and their application in transparent electronics

2017 ◽  
Vol 5 (9) ◽  
pp. 2240-2246 ◽  
Author(s):  
Chao Chen ◽  
Yan Zhao ◽  
Wei Wei ◽  
Jingqi Tao ◽  
Guowei Lei ◽  
...  
Keyword(s):  
Sheet Resistance ◽  
Silver Nanowire ◽  
Transparent Electronics ◽  
High Definition ◽  
Transparent Conductive Films ◽  
Conductive Films ◽  
High Uniformity

Transparent conductive films with an optical haze of 0.8% and a sheet resistance deviation of 5% are fabricated for high-definition and acute electronics.

scholarly journals Ultra-Uniform and Very Thin Ag Nanowires Synthesized via the Synergy of Cl−, Br− and Fe3+ for Transparent Conductive Films

Nanomaterials ◽  
2020 ◽  
Vol 10 (2) ◽  
pp. 237
Author(s):  
Xiao-Ming Wang ◽  
Long Chen ◽  
Enrico Sowade ◽  
Raul D. Rodriguez ◽  
Evgeniya Sheremet ◽  
...  
Keyword(s):  
High Performance ◽  
Silver Nanowires ◽  
Optical Transmittance ◽  
Electrical Performance ◽  
Transparent Conductive Films ◽  
Conductive Films ◽  
High Optical Transmittance ◽  
Ag Nanowires ◽  
Fundamental Research ◽  
High Figure

The properties and applications of Ag nanowires (AgNWs) are closely related to their morphology and composition. Therefore, controlling the growth process of AgNWs is of great significance for technological applications and fundamental research. Here, silver nanowires (AgNWs) were synthesized via a typical polyol method with the synergistic effect of Cl−, Br−, and Fe3+ mediated agents. The synergistic impact of these mediated agents was investigated intensively, revealing that trace Fe3+ ions provided selective etching and hindered the strong etching effect from Cl− and Br− ions. Controlling this synergy allowed the obtainment of highly uniform AgNWs with sub-30 nm diameter and an aspect ratio of over 3000. Transparent conductive films (TCFs) based on these AgNWs without any post-treatment showed a very low sheet resistance of 4.7 Ω sq−1, a low haze of 1.08% at a high optical transmittance of 95.2% (at 550 nm), and a high figure of merit (FOM) of 1210. TCFs exhibited a robust electrical performance with almost unchanged resistance after 2500 bending cycles. These excellent high-performance characteristics demonstrate the enormous potential of our AgNWs in the field of flexible and transparent materials.

scholarly journals Flexible biodegradable transparent heaters based on fractal-like leaf skeletons

2020 ◽  
Vol 4 (1) ◽  
Author(s):  
Vipul Sharma ◽  
Anastasia Koivikko ◽  
Kyriacos Yiannacou ◽  
Kimmo Lahtonen ◽  
Veikko Sariola
Keyword(s):  
Surface Temperature ◽  
Surface Area ◽  
Sheet Resistance ◽  
Flexible Electronics ◽  
Low Voltage ◽  
Heating Temperature ◽  
Optical Transmittance ◽  
Ag Nanowires ◽  
Significant Change

Abstract We present a facile method to prepare flexible, transparent, biodegradable, and fast resistive heaters by applying silver (Ag) nanowires onto fractal-like leaf skeletons. The fractal-like structure of the leaf skeleton maximizes its surface area, improving the transfer of heat to its surroundings and thus making the heater fast, without compromising transparency. Ag ion layer on the leaf skeleton helps to conformally cover the surface with Ag nanowires. The sheet resistance of the heater can be controlled by the loading of Ag nanowires, without sacrificing the optical transmittance (~80% at 8 Ω sq−1). The heating is uniform and the surface temperature of a 60 mm × 60 mm heater (8 Ω sq−1) can quickly (5–10 s) raise to 125 °C with a low voltage (6 V). The heater displays excellent mechanical flexibility, showing no significant change in resistance and heating temperature when bent up to curvature of 800 m−1. Finally, we demonstrate the potential of the bioinspired heater as a thermotherapy patch by encapsulating it in a biodegradable tape and mounting it on the human wrist and elbow. This study shows that fractal-like structures from nature can be repurposed as fractal designs for flexible electronics.

scholarly journals Two-step deposition of Ag nanowires/Zn2SnO4 transparent conductive films for antistatic coatings

RSC Advances ◽  
2021 ◽  
Vol 11 (24) ◽  
pp. 14730-14736
Author(s):  
Jing Li ◽  
Fengmei Cheng ◽  
Haidong Li ◽  
Hongwen Zhang ◽  
Gang Wang ◽  
...  
Keyword(s):  
Thin Films ◽  
Sheet Resistance ◽  
Transparent Conductive Films ◽  
Conductive Films ◽  
Ag Nanowires ◽  
Hybrid Thin Films

Robust and stable AgNWs/Zn2SnO4 hybrid thin films with a sheet resistance of 5–15 ohm sq−1 and transmittance of 85–80% are fabricated.

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 The Effect of Annealing on Nanothick Indium Tin Oxide Transparent Conductive Films for Touch Sensors

2015 ◽  
Vol 2015 ◽  
pp. 1-5 ◽  
Author(s):  
Shih-Hao Chan ◽  
Meng-Chi Li ◽  
Hung-Sen Wei ◽  
Sheng-Hui Chen ◽  
Chien-Cheng Kuo
Keyword(s):  
Sheet Resistance ◽  
Tin Oxide ◽  
Indium Tin Oxide ◽  
Annealing Temperature ◽  
Optical Transmittance ◽  
Transparent Conductive Films ◽  
Sensor Applications ◽  
Conductive Films ◽  
Touch Sensor ◽  
Ito Films

This study aims to discuss the sheet resistance of ultrathin indium tin oxide (ITO) transparent conductive films during the postannealing treatment. The thickness of the ultrathin ITO films is 20 nm. They are prepared on B270 glass substrates at room temperature by a direct-current pulsed magnetron sputtering system. Ultrathin ITO films with high sheet resistance are commonly used for touch panel applications. As the annealing temperature is increased, the structure of the ultrathin ITO film changes from amorphous to polycrystalline. The crystalline of ultrathin ITO films becomes stronger with an increase of annealing temperature, which further leads to the effect of enhanced Hall mobility. A postannealing treatment in an atmosphere can enhance the optical transmittance owing to the filling of oxygen vacancies, but the sheet resistance rises sharply. However, a higher annealing temperature, above 250°C, results in a decrease in the sheet resistance of ultrathin ITO films, because more Sn ions become an effective dopant. An optimum sheet resistance of 336 Ω/sqr was obtained for ultrathin ITO films at 400°C with an average optical transmittance of 86.8% for touch sensor applications.

scholarly journals One-step synthesis of ultra-long silver nanowires of over 100 μm and their application in flexible transparent conductive films

RSC Advances ◽  
2018 ◽  
Vol 8 (15) ◽  
pp. 8057-8063 ◽  
Author(s):  
Yuxiu Li ◽  
Shuailong Guo ◽  
Hongwei Yang ◽  
Yunxiu Chao ◽  
Shaozhuang Jiang ◽  
...  
Keyword(s):  
Sheet Resistance ◽  
Silver Nanowires ◽  
Optical Transmittance ◽  
Transparent Conductive Films ◽  
Conductive Films ◽  
High Optical Transmittance ◽  
One Step

Ultra-long silver nanowires (100–160 μm) were applied in flexible transparent conductive films showing low sheet resistance and high optical transmittance.

Layer-by-layer assembled transparent conductive graphene films for solar cells application

2012 ◽  
Vol 1451 ◽  
pp. 75-81
Author(s):  
Ryousuke Ishikawa ◽  
Masashi Bando ◽  
Yasuyoshi Kurokawa ◽  
Adarsh Sandhu ◽  
Makoto Konagai
Keyword(s):  
Graphene Oxide ◽  
Sheet Resistance ◽  
Large Scale ◽  
Optical Transmittance ◽  
Layer By Layer ◽  
Functionalized Graphene Oxide ◽  
Layer By Layer Assembly ◽  
Conductive Film ◽  
Order Of Magnitude ◽  
Layer Assembly

ABSTRACTThe potential of chemically derived graphene as a solution-processable transparent conductive film has been explored. Synthesis of amine-functionalized graphene oxide was intended for its utilization in layer-by-layer assembly. Layer-by-layer assembly of graphene oxide was utilized to fabricate graphene based thin film in a scalable and highly reproducible way. It was found that optical transmittance and sheet resistance of the film decreases with an increase in number of LBL cycles in a reproducible way. The sheet resistance of LBL-assembled GO film improves by an order of magnitude at the same optical transparency due to more homogeneous coverage and better stacking of graphene flakes. Furthermore, we demonstrated the potential for a large-scale deposition of chemically derived graphene.

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