4,5-Diaza-9,9 '-spirobifluorene functionalized europium complex with efficient photo- and electro-luminescent properties

作者：Wang, Shimin; Zhang, Jiyuan; Hou, Yanhui; Du, Chenxia^*; Wu, Yangjie

来源：Journal of Materials Chemistry, 2011, 21(21): 7559-7561.

DOI：10.1039/c1jm10480b

• LIGHT-EMITTING DEVICES
• BETA-DIKETONATE COMPLEX
• ELECTROLUMINESCENT DEVICES
• III COMPLEXES
• LIGANDS
• BRIGHT

A simplified triple-layered pure red organic light-emitting diode with high efficiency and a slow efficiency roll-off was fabricated by using Eu(DBM)(3)(sbf) (DBM dibenzoylmethane, sbf = 4,5-diaza-9,9'-spirobifluorene) as emitter. In particular, an impressive current efficiency of 3.31 cd A(-1) and an external quantum efficiency of 1.8% were maintained at a high luminance of 100 cd m(-2).

• 出版日期2011
• 单位天津工业大学; 郑州大学