| abstract |
The invention discloses a sky blue light organic electroluminescent material and a preparation method thereof. The sky blue organic electroluminescent material is represented by the following general formula (I): In formula (I), R 1 and R 2 are electron donating groups of aromatic ring derivatives. The invention adopts the sky-blue organic electroluminescent material with the above structure and a preparation method thereof. The material achieves high-efficiency solid-state light emission and high exciton utilization rate, and at the same time improves the light extraction efficiency, thereby improving the performance of the OLED device, and the preparation method has a simple process. , The raw materials are easily available and the yield is high. |