Created hybrid ink to print and draw electrical circuits on paper or plastic
Welcome to the pages of the blog iCover . Studies conducted by scientists from the Institute of New Materials. Leibniz (INM) made it possible to combine the advantages of organic compounds and inorganic nanoparticles and create hybrid conductive inks used to create electronic circuits of a new type using a special pen or inkjet printer.
German scientists from the Institute of New Materials. Leibniz (INM) in SaarbrĂĽcken (Germany) managed to create a new type of hybrid organic / inorganic ink, which makes it possible to apply an electronic circuit to paper or foil with a pen or inkjet printer. The proposed composition is based on a water or alcohol suspension of metal nanoparticles coated with an electrically conductive polymer and demonstrates the advantages of both organic and inorganic electronic materials. The suspension dries out without any additional processing, thus forming an electrical circuit.
Metal nanoparticles with ligands are already used today for printing electronic circuits, but their organic shells, which deteriorate the conductivity and bind the position of the nanoparticles, have to be removed by sintering. This makes it difficult to print circuits on paper or plastic due to excessively high process temperatures.
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It is indicative that the electrical conductivity of an organic polymer in combination with gold or silver nanoparticles was higher than individual layers of a conductive polymer or metal nanoparticles. At the same time, in the layer of metal particles without a polymer shell, the electrical conductivity will be quickly lost when bent. The combination of metal and nanoparticles proposed by scientists made it possible to combine mechanical flexibility with the strength of the metal, while increasing the electrical conductivity.
“Polymers that conduct electricity are used, for example, in OLED, which can also be manufactured on a flexible basis,” comments Tobias Kraus, head of the Structure Formation research group at INM. In the combination proposed by us, organic compounds perform three functions at once: they keep oblong gold or silver nanoparticles suspended in a liquid, preventing them from sticking together; retain a uniform distribution of nanoparticles when the ink dries; maintain electrical conductivity when the material is bent. ”
The results and possibilities of the experiment are demonstrated at stand B46 in pavilion 2 at the Hanover Fair in April 5 to 29 of this year as part of the Research & Technology exhibition.
You can read more about the new development on the Institute’s website
Quick reference
Institute of New Materials. Leibniz (INM) in SaarbrĂĽcken is one of the world's leading centers for research and the creation of promising nanomaterials. 220 researchers, including physicists, biologists, chemists, and engineers, conduct research in the laboratories of the institute. The range of issues studied includes such areas as: research and adaptation for industrial purposes of materials with new properties, obtaining new materials used as alternative energy sources, the creation of new surface materials for tribological systems. The main directions are related to the research of nanocomposite materials and bio-interface.
Dear readers, we are always happy to meet and wait for you on the pages of our blog. We are ready to continue to share with you the latest news, review materials and other publications, and we will try to do everything possible so that the time spent with us will be useful for you. And, of course, do not forget to subscribe to our headings .
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German scientists from the Institute of New Materials. Leibniz (INM) in SaarbrĂĽcken (Germany) managed to create a new type of hybrid organic / inorganic ink, which makes it possible to apply an electronic circuit to paper or foil with a pen or inkjet printer. The proposed composition is based on a water or alcohol suspension of metal nanoparticles coated with an electrically conductive polymer and demonstrates the advantages of both organic and inorganic electronic materials. The suspension dries out without any additional processing, thus forming an electrical circuit.
Metal nanoparticles with ligands are already used today for printing electronic circuits, but their organic shells, which deteriorate the conductivity and bind the position of the nanoparticles, have to be removed by sintering. This makes it difficult to print circuits on paper or plastic due to excessively high process temperatures.
')
It is indicative that the electrical conductivity of an organic polymer in combination with gold or silver nanoparticles was higher than individual layers of a conductive polymer or metal nanoparticles. At the same time, in the layer of metal particles without a polymer shell, the electrical conductivity will be quickly lost when bent. The combination of metal and nanoparticles proposed by scientists made it possible to combine mechanical flexibility with the strength of the metal, while increasing the electrical conductivity.
“Polymers that conduct electricity are used, for example, in OLED, which can also be manufactured on a flexible basis,” comments Tobias Kraus, head of the Structure Formation research group at INM. In the combination proposed by us, organic compounds perform three functions at once: they keep oblong gold or silver nanoparticles suspended in a liquid, preventing them from sticking together; retain a uniform distribution of nanoparticles when the ink dries; maintain electrical conductivity when the material is bent. ”
The results and possibilities of the experiment are demonstrated at stand B46 in pavilion 2 at the Hanover Fair in April 5 to 29 of this year as part of the Research & Technology exhibition.
You can read more about the new development on the Institute’s website
Quick reference
Institute of New Materials. Leibniz (INM) in SaarbrĂĽcken is one of the world's leading centers for research and the creation of promising nanomaterials. 220 researchers, including physicists, biologists, chemists, and engineers, conduct research in the laboratories of the institute. The range of issues studied includes such areas as: research and adaptation for industrial purposes of materials with new properties, obtaining new materials used as alternative energy sources, the creation of new surface materials for tribological systems. The main directions are related to the research of nanocomposite materials and bio-interface.
Dear readers, we are always happy to meet and wait for you on the pages of our blog. We are ready to continue to share with you the latest news, review materials and other publications, and we will try to do everything possible so that the time spent with us will be useful for you. And, of course, do not forget to subscribe to our headings .
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Source: https://habr.com/ru/post/392921/
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