MEH-PPV夹层结构的430nm蓝色电致发光

430 nm Blue EL of MEH-PPV with Sandwich Structure

本文首次报道了不同于 MEH- PPV本征发光的蓝色发光。我们制备了以 Si O2 为加速层、MEH-PPV为发光层的有机 /无机复合电致发光器件 ,用交流电压驱动时 ,除 MEH- PPV的本征发光外 ,还得到了 430 nm的蓝色发光。我们认为 430 nm的蓝色发光是由被 Si O2 加速的电子直接碰撞 MEH- PPV所致。

Blue emitting of MEH-PPV, which is not identified with its inherent luminescence, is reported in this paper. Using SiO2 as accelerated layer, and MEH-PPV as emitting layer, we prepared organic/inorganic EL devices. While driven with alternative voltage, blue emitting (430 nm) is obtained. We consider the mechanism of blue emitting of MEH-PPV is due to the direct impact of electrons which are accelerated by SiO2.