申请人:IDEMITSU KOSAN CO., LTD.
公开号:US20210005826A1
公开(公告)日:2021-01-07
An organic electroluminescence device comprising a cathode, an anode and an organic layer disposed between the cathode and the anode, wherein the organic layer comprises a fluorescent emitting layer and the fluorescent emitting layer comprises a first compound, a second compound having a hole mobility larger than that of the first compound, and a dopant material showing a fluorescent spectrum with a half width of 30 nm or less; and an organic electroluminescence device comprising a cathode, an anode and an organic layer disposed between the cathode and the anode, wherein the organic layer comprises a fluorescent emitting layer and the fluorescent emitting layer comprises a first compound, a third compound having an affinity larger than that of the first compound, and a dopant material showing a fluorescent spectrum with a half width of 30 nm or less and the content of the third compound in the fluorescent emitting layer is less than that of the first compound in the fluorescent emitting layer are excellent in their performance.
一种有机电致发光装置,包括阴极、阳极以及设置在阴极和阳极之间的有机层,其中所述有机层包括荧光发射层,且所述荧光发射层包括第一化合物、第二化合物和掺杂材料,所述第二化合物的空穴迁移率大于所述第一化合物,且所述掺杂材料显示的荧光光谱半宽为30纳米或更小;以及一种有机电致发光装置,包括阴极、阳极以及设置在阴极和阳极之间的有机层,其中所述有机层包括荧光发射层,且所述荧光发射层包括第一化合物、第三化合物和掺杂材料,所述第三化合物与所述第一化合物的亲和力更大,且所述掺杂材料显示的荧光光谱半宽为30纳米或更小,且所述第三化合物在荧光发射层中的含量小于所述第一化合物在荧光发射层中的含量,这些装置的性能都十分出色。