A wallpaper that can shine: in the future, your home may not be a light but a wall.

Magic: the transparent "film" lights up when it is powered on.

New supramolecular technology reduces costs from more than 100,000 to several thousand

What is OLED? Lin Jinyi, a student of the School of Information Materials and Nanotechnology of Nanjing University of Posts and Telecommunications, said that OLED is also an organic light-emitting diode, and the organic material used is hydrocarbon. Compared with LED lamps, OLED is a flexible surface light source that emits light evenly without damaging the eyes. Yesterday, Lin Jinyi showed a large piece of organic light-emitting film to reporters. "The surface of the film has been coated with organic materials, very thin, which is equivalent to one thousandth of human hair." This film can be bent, folded, or even rolled. As a result, the light source also bends. Lin Jinyi said that the bottleneck restricting the development of OLED is that the cost is too expensive. The organic material applied on the film is extracted from petroleum and resin. The value of one gram of semiconductor powder is more than ten times that of the gold ring. Under the guidance of Professor Nan Hai, Mr. Hai, and others, Lin Jinyi and his friends set out to study the first international technology to achieve full-color luminescence through supramolecules. “In layman's terms, we use a new type of semiconductor that can emit five kinds of light such as blue light, green light, white light, orange light, and yellow light. The most obvious advantage of this achievement is that the cost is greatly reduced, and the traditional single light-emitting characteristics are The cost of polymer is more than 100,000 yuan, and the cost of the luminescent polymer semiconductor we developed is only a few thousand dollars."

Where do you want to brighten the organic semiconductor powder on the wallpaper?

“OLEDs can be used in solid-state lighting and displays.” Lin Jinyi showed a video of a future application of OLED technology. In the video animation, the hostess gently pressed on the white wall and lit up! The entire wall becomes translucent. "At that time, life will become very sci-fi. In the future, where do we want to be bright, it is not the lights, but the walls. There is a thin layer of organic light-emitting diodes on the wall, which is the wallpaper that will glow." Lin Jinyi said that it can be printed organically in the future. The printer cartridge is filled with organic semiconductor powder, just like printing pixels, through the drive circuit, to control when to display what "color". The illuminating wallpaper is simpler. Just like brushing, just apply the organic semiconductor powder on the plastic or wallpaper substrate. When the wallpaper is powered, it will illuminate. Lin Jinyi said that not only the lights used for lighting, but also the organic light-emitting diodes on the screen. When I get up in the morning and read the newspaper, I will take the electronic paper in my hand. When I touch it, it will become a computer. Some scientists have optimistically predicted that in the next six to seven years, organic light-emitting diodes will enter our daily lives.