Preparation of Conductive Nanosilver Ink and its Application on RFID Tags

2014 ◽  
Vol 904 ◽  
pp. 121-125 ◽  
Author(s):  
Ji Lan Fu ◽  
Ya Ling Li ◽  
Li Xin Mo ◽  
Yu Wang ◽  
Jun Ran ◽  
...  
Keyword(s):  
Flexible Electronics ◽  
Screen Printing ◽  
Surface Resistance ◽  
Large Scale ◽  
Printed Electronics ◽  
Silver Content ◽  
Rfid Tags ◽  
Rheological Characteristics ◽  
Conductive Ink ◽  
New Type

The recent dramatic progress in the printed electronics and flexible electronics, due to the universality of the substrates including the foldable and stretchable substrates, has opened a new prospect in the field of future electronics. In this paper, silver nanospheres in large-scale are synthesized, the nanosilver ink with 63.88% silver content are prepared and a new type of highly conductive and far identify distance RFID tags are manufactured. Especially there are no resin and other additives containing in our conductive ink which satisfy the rheological characteristics and process of screen printing. The tags exhibit the best radiation performance own to there is no high temperature sintering in need. The surface resistance of the tags could be 80 mΩ/, and the identify distance reach to 6.0m. Keywords:silver nanoparticles, conductive ink, RFID tags

Preparation of Water-Based Nano-Silver Gravure Conductive Ink Used for Printed Electronics

2012 ◽  
Vol 262 ◽  
pp. 523-526 ◽  
Author(s):  
Wei Wei Li ◽  
Li Xin Mo ◽  
Ji Lan Fu ◽  
Wen Bo Li ◽  
Jun Ran ◽  
...  
Keyword(s):  
Surface Resistance ◽  
Printed Electronics ◽  
Silver Content ◽  
Chemical Reduction ◽  
Conductive Ink ◽  
High Concentration ◽  
Silver Colloids ◽  
Nano Silver ◽  
Water Based ◽  
Liquid Chemical

Printed electronic industry develops fast and has great potential. In order to prepare water-based nano-silver gravure conductive ink used for printed electronics, liquid chemical reduction method is used. Ag+(5.89M) at high concentration acting as the precursor is reduced by hydrazine hydrate with PVP as the protecting agent. For one time of reaction, silver content of 9.25% is obtained. After washing and centrifuging the silver colloids for three times to purity, some amount of deionized water, resin and additives are added to the silver paste to fabricated water-based nano-silver conductive ink for gravure. Then, samples obtained by coating or proofing are dried and surface resistance and adhesion are measured. The results indicated that the silver particles prepared have size of about 50~100nm and most of the particles are spherical with small amount nanoplates. The nano-silver gravure conductive ink has 52.63% silver content and 3.58% PVP. Surface resistance of samples coated after sintering at 120°C for 30s can reach 129.5mΩ/sq and the resistivity is 1.49×10-4Ω.cm. The ink layer surface has no drop after 3M method which indicating good adhesion. The ink is suitable for gravure and can be used in printed electronics.

scholarly journals Investigation of Carbon-Based Composites for Elastic Heaters and Effects of Hot Pressing in Thermal Transfer Process on Thermal and Electrical Properties

Materials ◽  
2021 ◽  
Vol 14 (24) ◽  
pp. 7606
Author(s):  
Tomasz Raczyński ◽  
Daniel Janczak ◽  
Jerzy Szałapak ◽  
Piotr Walter ◽  
Małgorzata Jakubowska
Keyword(s):  
Flexible Electronics ◽  
Hot Pressing ◽  
Screen Printing ◽  
Printed Electronics ◽  
Wearable Electronics ◽  
Thermal Transfer ◽  
Wide Range ◽  
Thermal And Electrical Properties ◽  
Carbon Based ◽  
Screen Printed

Wearable electronics are new structures with a wide range of possible applications. This study aims to analyze the effects of hot pressing in thermal transfer of different carbon-based composites as a new application method of screen-printed electronics on textiles. Flexible heaters were screen-printed on polyethylene terephthalate PET foil with composites based on graphene, carbon black, and graphite with different wt.%, measured and then hot pressed to measure and analyze differences. Research showed that the hot pressing process in thermal transfer resulted in decreased electrical resistance, increased power, and higher maximal temperatures. Best results were achieved with composites based on 12 wt.% graphene with sheet resistance lowered by about 40% and increased power by about 110%. This study shows promise for thermal transfer and screen-printing combination as an alternative for creating flexible electronics on textiles.

scholarly journals Versatile carbon-loaded shellac ink for disposable printed electronics

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Alexandre Poulin ◽  
Xavier Aeby ◽  
Gilberto Siqueira ◽  
Gustav Nyström
Keyword(s):  
Screen Printing ◽  
Printed Electronics ◽  
Environmental Concern ◽  
Conductive Ink ◽  
Proof Of Concept ◽  
Electronic Components ◽  
Feature Size ◽  
Carbon Particles ◽  
Minimum Feature Size ◽  
Rheology Modifier

AbstractEmerging technologies such as smart packaging are shifting the requirements on electronic components, notably regarding service life, which counts in days instead of years. As a result, standard materials are often not adapted due to economic, environmental or manufacturing considerations. For instance, the use of metal conductive tracks in disposable electronics is a waste of valuable resources and their accumulation in landfills is an environmental concern. In this work, we report a conductive ink made of carbon particles dispersed in a solution of shellac. This natural and water-insoluble resin works as a binder, favourably replacing petroleum-derived polymers. The carbon particles provide electrical conductivity and act as a rheology modifier, creating a printable shear-thinning gel. The ink’s conductivity and sheet resistance are 1000 S m−1 and 15 Ω sq−1, respectively, and remain stable towards moisture. We show that the ink is compatible with several industry-relevant patterning methods such as screen-printing and robocasting, and demonstrate a minimum feature size of 200 μm. As a proof-of-concept, a resistor and a capacitor are printed and used as deformation and proximity sensors, respectively.

Influence of Resins on Properties of Copper Screen Printing Conductive Ink

2012 ◽  
Vol 262 ◽  
pp. 547-550 ◽  
Author(s):  
Xin Ming Fan ◽  
Li Xin Mo ◽  
Wen Bo Li ◽  
Wei Wei Li ◽  
Jun Ran ◽  
...  
Keyword(s):  
Surface Layer ◽  
Screen Printing ◽  
Printed Electronics ◽  
Acrylic Resin ◽  
Electronics Industry ◽  
Conductive Ink ◽  
Conductive Material ◽  
Copper Particles ◽  
Acrylic Resins ◽  
Roll Mill

·Copper conductive inks for screen printing are being given great attention due to their widely application in printed electronics industry. In this study, copper conductive ink used for screen printing, which were grinded by three-roll mill machine, was prepared using the epoxy, polyurethane and acrylic resins as adhesive, the flake copper particles which had a diameter between 20 to 50 μm as conductive material and butly alcohol was chosen as solvent. The viscosity and the thixotropy of the conductive ink were measured by rheometer. The oxidation of the surface layer of copper were removed by submerged in a certain concentration of acid solution and the resistance of the sample was measured after heated at different various temperatures. The results showed that the rheology were better for screen printing by adding the acrylic resin and the minimum conductivity can be reached 1.93×10-3 Ω·cm.

Anion-mediated synthesis of monodisperse silver nanoparticles useful for screen printing of high-conductivity patterns on flexible substrates for printed electronics

RSC Advances ◽  
2015 ◽  
Vol 5 (13) ◽  
pp. 9783-9791 ◽  
Author(s):  
Li Liu ◽  
Xiaoxia Wan ◽  
Lingling Sun ◽  
Shuanglei Yang ◽  
Zhigao Dai ◽  
...  
Keyword(s):  
Silver Nanoparticles ◽  
Screen Printing ◽  
Large Scale ◽  
Printed Electronics ◽  
High Conductivity ◽  
Flexible Substrates ◽  
Reduction Reactions ◽  
Oxidation Reduction

Monodisperse silver nanoparticles (NPs) have been synthesized on a large scale by oxidation–reduction reactions in water and used in the printed electronics.

One-Pot Synthesis of UV-Curable Au/PEDOT Conductive Ink by Using Amphiphilic Polymer PSMH as Templates

2015 ◽  
Vol 748 ◽  
pp. 101-106
Author(s):  
Yu Lin Zhang ◽  
Yong Xiang Zhai ◽  
Xiao Ya Liu ◽  
Jing Luo ◽  
Yan Yuan
Keyword(s):  
Inkjet Printing ◽  
Ligand Exchange ◽  
Water Resistance ◽  
Printed Electronics ◽  
Amphiphilic Polymer ◽  
Chloroauric Acid ◽  
Conductive Ink ◽  
One Pot ◽  
Uv Curable ◽  
New Type

In this paper, we report a one-pot method to prepare a new type of UV-curable Au/PEDOT nanocomposite used in printed electronics, which use an amphiphilic polymer polystyrenesulfonate-alt-[maleic anhydride-g-(2-hydroxy-ethyl-methacrylate)] (PSMH) as a conductive ink. The synthesis included the reduction of chloroauric acid using EDOT (3, 4-Ethylenedioxythiophene).PSMH acted a dopant for PEDOT and a stabilizer of Au nanoparticles due to the ligand exchange between chloroauric acid and carboxylate group. The carbon-carbon double bonds have been introduced into this ink with UV-curable property to enhance the water resistance of this nanocomposite before inkjet-printing. The particle size of this nanocomposite is above 200 nm while the gold particles size is above 3~10 nm. This UV-curable Au/PEDOT nanocomposite can be used as a conductive ink for inkjet printing.

Exothermic and Recursive Reaction of Self-Sinterable Silver Ink for Flexible Electronics

2013 ◽  
Vol 1567 ◽  
Author(s):  
Dong-Youn Shin ◽  
Sangki Chun
Keyword(s):  
Silver Nanoparticles ◽  
Low Temperature ◽  
Flexible Electronics ◽  
Printed Electronics ◽  
Exothermic Reaction ◽  
Conductive Ink ◽  
Crucial Issue ◽  
Polymeric Substrate ◽  
Silver Ink ◽  
Silver Carboxylate

ABSTRACTFor the construction of highly conductive printed electrodes on a polymeric substrate with a low glass transition temperature, the development of a low temperature sinterable conductive ink has been a crucial issue in printed electronics and display applications. In this work, we introduce a novel type of self-sinterable silver ink, whose sintering is triggered at a low temperature and completed with the aid of its own exothermic reaction, and propose its exothermic reaction mechanism. Although individual components of this self-sinterable silver ink, Ag2O and silver carboxylate, exhibit endothermic behaviors, their mixture form shows a strong exothermic reaction when heated at 150 °C. It is found that the dissociated form of the used silver carboxylate contributes to the reduction of Ag2O to Ag through its recursive reaction and produces silver nanoparticles. The major source of an exothermic reaction results from the nucleation and fusion of silver nanoparticles.

Preparation of Triangular Silver Nanoplates and its Application in Printed Electronics

2015 ◽  
Vol 748 ◽  
pp. 153-156
Author(s):  
Zhi Qing Xin ◽  
Shi Li Liu ◽  
Pu Jun Deng ◽  
Ya Ling Li ◽  
Lu Hai Li
Keyword(s):  
Printed Electronics ◽  
Silver Content ◽  
High Energy ◽  
Manufacturing Cost ◽  
Conductive Ink ◽  
Sintering Process ◽  
Spherical Nanoparticles ◽  
Silver Nanoplates ◽  
Triangular Silver Nanoplates ◽  
High Silver

Conductive ink for inkjet printing has attracted considerable interest for the preparation of advanced electronic circuits. However, high silver content and multiple printing are necessary in order to acquire better conductivity when using spherical silver nanoparticles. In order to reduce manufacturing cost, triangular silver nanoplates were prepared by modified solvothermal method and used for conductive ink. During sintering process of prtinted patterns, the tips of triangular nanoplates were first melted and turned round for high energy of tips. The resistivity of inkjet printed line is 7.6×10-6 Ω·cm when using triangular nanoplates ink with 10 percent content, while it is necessary to use more than 15 percent content for spherical nanoparticles. This is because surface contact between nanoplates can provide more paths for electron transmission relative to spherical nanoparticles.

Large-scale synthesis of copper nanoparticles by chemically controlled reduction for applications of inkjet-printed electronics

2008 ◽  
Vol 19 (41) ◽  
pp. 415604 ◽  
Author(s):  
Youngil Lee ◽  
Jun-rak Choi ◽  
Kwi Jong Lee ◽  
Nathan E Stott ◽  
Donghoon Kim
Keyword(s):  
Copper Nanoparticles ◽  
Large Scale ◽  
Printed Electronics ◽  
Large Scale Synthesis
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