According to the news site Yassad News, citing New Atlas, such LEDs are used in various fields, including medicine. Although there are news about elastic electronic devices every day, but making the components of such devices is far beyond the capabilities of people. A group of researchers from the University of Washington led by Professor Chuan Wang has invented this ink. Of course, it should be noted that previously researchers had made inks that were used to produce flexible LEDs in inkjet printers. The use of those inks in pens required changing the amount of wettability (the ability of the liquid to maintain contact with the solid surface) and improving the ability to write with them. Also, researchers need to test the ink’s ability to be applied to porous or fibrous surfaces (such as paper or fabric).
were promoted without overflowing or combining with each other. Normally, LEDs are made by placing parts like a sandwich. They consist of at least 3 layers: anode, radiation and cathode. In this research, 3 pens were used separately and on top of each other, and their inks performed their role without mixing with each other. One ink contains conductive polymers, another contains metal nanowires, and the third contains a crystalline material called perovskite. When this combination of flexible inks is connected to an electric current, it can emit a spectrum of different colors. In this regard, Wang says: cheap and changeable LEDs offer opportunities in the field of education, conductive fabrics such as luminous clothes, and also packaging They create intelligent. One of the attractive applications of this section is in the field of medicine. This research was recently published in the journal “Nature Photonics”.
