초록 |
I will introduce recent OLED material technology and the related issues including TV and mobile phone applications. The novel chemical structures based on dual core chromophores for blue emission in OLEDs will be also shown. One of the derivatives, TP-AP-TP, exhibits a high luminance EQE value of 7.51% and twice the lifetime of a commercialized material, MADN. The dual core chromophore materials have basically narrower PL and EL spectra and better color purity than single core chromophore compounds. Also, it has higher thermal property than the single core chromophore materials. The molecular design and synthesis as well as the device performance of novel organic molecules for highly efficient blue emission will be discussed. |