首页>
外国专利>
BLUE PHOSPHORESCENT ORGANIC LIGHT EMITTING DIODE HAVING IMPROVED EFFICIENCY BY SUPPRESSING TRIPLET EXCITON QUENCHING AND ACHIEVING CHARGE BALANCE
BLUE PHOSPHORESCENT ORGANIC LIGHT EMITTING DIODE HAVING IMPROVED EFFICIENCY BY SUPPRESSING TRIPLET EXCITON QUENCHING AND ACHIEVING CHARGE BALANCE
展开▼
机译：抑制三重态激子猝灭和实现电荷平衡，提高了蓝色磷光有机发光二极管的效率
展开▼
页面导航
摘要
著录项
相似文献
摘要
The present invention relates to a blue phosphorescent organic light emitting diode comprising: an anode; a hole injection layer (HIL) formed on the anode; a hole transport layer (HTL) formed on the hole injection layer; an exciton blocking layer (EBL) formed on the hole transport layer; an emitting layer (EML) formed on the exciton blocking layer and containing blue phosphorescent dopants; an electron transport layer (ETL) formed on the emitting layer; and a cathode formed on the electron transport layer, wherein hosts of the exciton blocking layer and the emitting layer are made of the same substance. The blue phosphorescent organic light emitting diode according to the present invention has the exciton blocking layer in front of the emitting layer so as to suppress triplet exciton quenching in an interface between the emitting layer and the hole transport layer and an interface between the emitting layer and the electron transport layer and achieve charge balance in the emitting layer, thereby having markedly improved efficiency.;COPYRIGHT KIPO 2016
展开▼
