Holland scientists to develop new methods of direct printing on paper with laser-Iota

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News > Dynamic industry > Holland scientists to develop new methods of direct printing on paper with laser

Holland scientists to develop new methods of direct printing on paper with laser

According to foreign media reports, the researchers at the Delft University of technology in the Netherlands developed out of a method, using a single pulse laser directly on the substrate will be liquid silicon inks to print to form of polysilicon in the circuit. On the substrate before printing ink temperature of 350 degrees Celsius, it is too hot for many flexible materials. The new method can be completely bypassed this step, the conversion of liquid silicon into polycrystalline silicon. Their results are published in the application of physical letters.
"Actually very simple." Lead the study, Professor Shintaro Ishihara said, through a direct in oxygen enriched environment will be coated with liquid silane, and then use the excimer laser direct annealing coating." Laser only lasts a dozen, and will not have any effect on the paper. In the test of electrical conductivity, Shintaro Ishihara and his colleagues found that the use of laser printing thin film transistor is more flexible than the traditional polysilicon conductor.
Due to the fast and flexible low power transistor production cost is very low, so the most direct application of this result is on wearable electronic devices. Shintaro Ishihara believes that the future to improve the production process of thin film transistors, including non silicon layer, will be more application value. "This production process can be extended to the field of biomedical sensors and solar cells, as well as to stretch and even edible electronic products." (source: Global silicone mesh) (more information, please log on: Global silicone mesh

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