中文摘要：

制备了以TCTA和CBP为空穴传输层、Eu（DBM）3Bath为发光层、TPBI为电子传输层的有机多层薄膜微腔电致发光器件。通过光学微腔来改变Eu（DBM）3Bath不同能级之间的跃迁速率,从而实现了Eu3＋的5D0→7 F0（580 nm）、5 D0→7 F2（612 nm）以及5 D0→7 F3（652 nm）的多色电致发光。其中,发光主峰在5 D0→7 F2（612 nm）的微腔OLED最大电流效率超过20 cd/A,最大亮度超过1 300 cd/m2。

英文摘要：

The multi-layer microcavity OLEDs have been fabricated with hole transport layers of CBP and TCTA, an emissive layer of Eu（DBM） 3Bath, and an electron transport layer of TPBI. Muhicol- or electroluminescence from the transition of Eu3＋ iron with three peaks at 580 nm （5D0→7F0 ）, 612 nm （5 D0→7 F2 ）, and 652 nm （5D0→7 F3 ） was achieved by changing the transition rate between the different energy levels of Eu（ DBM ）3 Bath through optical microcavity. The microcavity OLED device with an EL peak of 612 nm shows the maximum current efficiency more than 20 cd/A, and maxi- mum luminance over 1 300 cd/m2.