The basic device structure is ITO/EL polymer/Al, and the two parts of EL polymer layer in the dual-color device are Si-PPV and CN-PPV/Si-PPV, respectively. 3.

• 此外，使用两步旋涂的方法，分别以Si-PPV和CN-PPV/Si-PPV为发光层部分，实现了同一块ITO基板上的双色发光。