Lu Qinwei, an associate professor of the Department of Applied Chemistry at Taiwan's Jingyi University, has developed a new pure organic small molecule "biscyanimidazole thermally activated delayed fluorescent material", which can replace iridium metal and be used in OLED (organic light emitting diode) panels. If the research is widely used in the industry in the future, it will effectively reduce the prices of mobile phones, computers, and OLED TVs. The research was published in the international journal "Chemistry - A European Journal".
Lu Qinwei said that OLED panels are widely used in mobile phones, computers and TV screens. Since the iridium metal required for OLED panels is very little in the earth's crust, it is almost obtained through meteorites, which makes the price of OLED panels remain high and mobile phones become expensive. , each at 20,000-30,000 yuan (NTD, the same below). The picture quality of OLED TVs sold on the market is also better than that of LCD screens, but they are expensive, each costing more than 100,000 yuan, so they cannot be popularized.
Lu Qinwei pointed out that red, green and blue are the three primary colors of OLED panels, among which blue is the most difficult to produce. Generally, blue OLEDs are not pure and saturated in color or have a short lifespan.
The research and development team of the Department of Applied Chemistry, Jingyi University, Taiwan has developed a "biscyanimidazole thermally activated delayed fluorescent material" using imidazole, which is widely used in light-emitting elements and sensors, and cyano, which is often used as a light-emitting material. , taking into account the advantages of color saturation and long life, it can replace the application of iridium metal on OLED panels, and it is easy to manufacture. This research has great potential for development. If it is used by the industry in the future, it will effectively reduce the prices of mobile phones, computers, and OLED TVs.
