Silicon-cored anthracene derivatives as host materials for highly efficient blue organic light-emitting devices.

Lyu, Yi-Yeol; Kwak, Jeonghun; Kwon, Ohyun; Lee, Soo-Hyoung; Kim, Doyun; Lee, Changhee; Char, Kookheon · Adv Mater · 2008

basic_science · Level V

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Abstract

Blue host materials for organic light-emitting diodes (OLEDs) based on silicon-cored (tetraphenylsilane) anthracene derivatives are synthesized. These compounds, with a non-coplanar molecular structure, have high glass-transition temperatures and good amorphous-film-forming capabilities. When doped with a blue-fluorescent dopant, blue emission with high color purity and high efficiency, up to 7.5 cd A(-1) and 6.3%, is achieved.