Recently, American researchers have developed a new type of "spin-polarized" OLED technology. The improved OLED has more advantages than LED.

Researchers at the University of Utah in the United States point out that the new OLED uses a device called an organic spin valve. This device has a three-layer structure with an organic layer in the middle which is equivalent to a semiconductor and a ferromagnetic metal layer on both sides. The organic layer uses a polymer called "æ°˜-DOO-PPV" which emits orange light at a lower cost and improves luminous efficiency. The entire unit is extremely thin and can be mounted inside the tube.

The researchers say that this technology can only work in low temperature environments and needs to be further refined to meet the requirements of working at room temperature. In addition, it is also desirable to produce an OLED that produces white light.

Researchers believe that OLEDs are expected to replace LEDs currently used in many electronic products such as computers, televisions, and lighting equipment after effectively improving OLED luminous efficiency and reducing manufacturing costs.

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