Organic electroluminescent device and host material of luminescent and hole-blocking material thereof
申请人:Chen Ruey-Min
公开号:US20070015005A1
公开(公告)日:2007-01-18
An organic electroluminescent device including an anode on a substrate, an organic luminescent layer on the anode and a cathode on the organic luminescent layer is provided. The luminescent layer contains a fluorene compound as formula (1):
Polymorphism is observed in 9,9-diarylfluorene-based organic semiconductors. The effects of rich phase behavior on the charge transport and photoluminescence properties of these semiconductors are investigated. Polymorphism control is a rational way to tailor the optoelectronic functions of their films.