The result shows that the film thickness of Alq3 has remarkable effect on the performance of OLEDs. In the case of Alq3 film thickness of 40 nm, the highest performance device was obtained.

• 结果表明,在NPB的膜厚度保持在15 nm的情况下, Alq3的膜厚度在40 nm时,器件的各方面的性能最佳;