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Silver Nanoparticle Responsiveness

Recently, Silver Nanoparticle a group of scientists from the ETH Zurich Institute has developed a new technology for 3D ultra-thin nanowall, Silver Nanoparticle which produces the most transparent and conductive electrodes so far , So that we can see everywhere the touch screen has a better screen quality, more accurate response capability.


According to scientists, the current mainstream touch-screen technology relies heavily on the surface of the surface with a layer of conductive material composed of almost invisible nano-wall. At present, we commonly used indium tin oxide is a high transparency, Silver Nanoparticle but the conductivity is relatively low material.

Scientists have a breakthrough in this technology is that they use gold or silver metal nanoparticles 3D printing of nano-walls than indium tin oxide more transparent, more conductive, Silver Nanoparticle which can provide a more perfect touch screen overall experience.


"In the past people used indium tin oxide because of this material has a high degree of transparency, and its thin layer of production technology has been more mature, Silver Nanoparticle but its conductivity is only general." The research team member, ETH doctoral student Patrik Rohner explained.

Scientists print gold and silver nanoparticles through a nano-3D process known as Nanodrip, while maintaining high transparency while maintaining the conductivity of the materials described above. Researchers are able to print these electrodes into very thin layers - between 80 and 500 nanometers. Silver Nanoparticle However, this raises another question:


"The two goals are conflicting in order to achieve high conductivity on these metal-made wires," said Dimos Poulikakos, professor of thermodynamics at ETH. Gold, Silver Nanoparticle silver wire cross - sectional area increases, the conductivity increases, but the formation of the grid to reduce the transparency.

In order to solve this dilemma, scientists use 3D printing technology to print electrodes, so that you can only accurately raise the height of the wire, so that it rose to 2 to 4 times the width, thus increasing the cross-sectional area of the wire, further increased Conductivity, but the grid's transparency is not reduced.


To do that, Poulikakos's team used the Nanodrip 3D printing process they developed three years ago - in fact, this technology was what Scrona reported before we made the world's smallest color on a salt Picture using the technology. In this study, the ink made from gold or silver nanoparticles was placed in a solvent and then dispersed into a very small liquid by means of an electric field. The solvent was quickly evaporated, Silver Nanoparticle leaving only these small 3D structures. Scientists use these fine droplets for 3D printing, you can print out a very small structure.


According to ETH reported that this is the world's first use of 3D printing technology to create the touch screen nano-wall. This nano-wall is not only more transparent than indium tin oxide made of nano-wall, Silver Nanoparticle but also more conductive and lower cost. This is because the production of indium tin oxide requires a highly clean indoor environment, while gold and silver nanoparticles are not needed.


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