Scientists found that graphene film twists and turns can be used to produce colorful electronic ink screen
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Scientists found that graphene film twists and turns can be used to produce colorful electronic ink screen
Electronic ink E-Ink new skills to break through the electronic ink screen at the same low power level to complete the mixed color display. The scientists found that after the physical manipulation "twists" of the graphene surface membrane, can effectively control the electronic ink screen appear in color, such as electronic reader electronic ink screen to form a mechanical "mechanical pixels", the pixel of Technische Universiteit Delft in Holland, a group of scientists with Spanish team graphene skills company Graphenea to discuss, recently in the academic "the journal nano letters (Nano Letters)" announced the results.
The primary principle, the main applications of scientists called graphene "balloon" devices, scientists had two layers of graphene films deposited on a planar silicon substrate is special when the substrate was 10 nm in diameter at the mercy of the circular cavity, can form a temporary balloon - graphene graphene resonant circular cavity.
The team found that graphene membrane curvature using physical manipulation control cavity on showing the color is not the same, than the direction of internal and external cavity is not the same as the applied pressure, you can manipulate these circular graphene membrane curvature. If the curvature is large enough, Newton's ring will appear. The team doctor Cartamil-Bueno said, according to the "and after modulation" skills can develop electronic ink display after mutation riotous with colour, have Qualcomm Toq skills to choose mechanization similar pixels, but the display data is based on silicon semiconductor material.
The graphene material skill electronic ink screen skills, because graphene conductive material is 1000 times of silicon semiconductor material, which can accurately control the color change, the supply of more sensitive wide color show function. The team is expected to display prototype screens at the MWC conference in Barcelona next year.
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