Korean researchers announces the invention of a new blue light emitting material for led

Korean researchers develop a new material for blue light emitting LEDs which can replace traditional gallium nitride (GaN). It is reported that the latest technology might enable Korea to reduce the importation of Japanese-made LED materials. The article in the name of Intrinsically p-type cuprous iodide semiconductor for hybrid light emitting diodes demonstrate the single crystal epitaxy of cuprous iodide (CuI) film grown on Si and sapphire substrate by molecular beam epitaxy.

The researchers tried their best to grow CuI semiconductors on large size Si substrate (300mm) with few defects. They also found that the blue light emitting by CuI semiconductors is 10 times brighter than GaN-based LED. The newest materials also feature in higher photoelectric efficiency and longer stability.

The recent invention of the new semiconductor material for LED is much important for businesses in Korea. As the research team announced that CuI can replace GaN in producing blue LED, it will be helpful for Korean businesses to lessen their dependence on Japanese exclusive GaN.