Pyrographene enables plain paper to be printed as

2022-08-01
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Graphene enables plain paper to be printed as a flexible display

release date: 13 Deformation interface: deformation channel interface and experimental software can be equipped with various types of extensometers according to user needs source: Internet editor: lychee browsing times: 859 copyright and disclaimer

core tip: it is reported that researchers at Bilken University in Turkey have clamped a piece of ordinary printing paper between two layers of graphene film (composed of multiple layers of graphene) on the day when it is not possible to drive a 14.4% mom drop, It becomes a flexible electronic display

[China Packaging News] it is reported that the researchers of big screw Science in Bilken, Turkey, recently clamped an ordinary printing paper between two layers of graphene film (composed of multiple layers of graphene), making it a flexible electronic display

incredible graphene can "turn" ordinary paper into a flexible display

they also arrange graphene into a multi-pixel mode, fold the paper into a three-dimensional shape, and print color patterns on it, showing another kind of effect different from chip technology

according to the "spectrum" station of the American Institute of electrical and electronic engineers, graphene itself has many uses in flexible displays, such as replacing another scarce material indium tin oxide (ITO), a transparent conductor that controls display pixels, or using it as an electrode on the display base plate

according to a paper published in the journal photonics, there is still a great challenge to manufacture paper-based optoelectronic devices because the paper surface is rough and incompatible with optical materials. Instead, they use graphene as an electrically configured optical medium. By applying a bias voltage to the graphene on paper, they trigger the ionic interlayer between graphene to change its light absorption, from transparent to black or from black to transparent. The system can be used as a framework to turn ordinary printing paper into an optoelectronic display, said the author of the paper

they used chemical vapor deposition to grow graphene on the metal surface, left a thin layer of graphene film after etching the metal in water, and then immersed the paper in water to transfer the graphene film to the paper. In the experiment, the display changes from transparent to black in less than half a second, while it takes about 4 seconds from dark to transparent, which is more suitable for signal systems that do not need image conversion. However, compared with normal monitors, its refresh rate is still too slow

kokabash said that the previously developed technologies based on the principles of electrophoretic particle motion, thermochromic dyes and liquid electrohumidity can also achieve the effect of electronic paper, which has great potential in the field of consumer electronics, but these technologies are incompatible with traditional cellulose based printing paper. What they developed is a kind of display that displays information on ordinary printing paper when it is powered on

the researchers said that in the future, they intend to further develop electronic paper with all functions, including pixels and integrated drive circuit, and hope that this technology can also be used in the roller manufacturing process

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