The device of C9-PPV sandwiched between two SiO2 layers was prepared and we obtained the blue light in addition to yellow-green emission under AC electric field excitation.

• 以SiO2为加速层，共轭聚合物C9-PPV为发光层制备了有机无机复合器件，得到了长波发光和短波发光共存的固态阴极射线发光。