A Sulfone Group-Containing Compound, An Organic Light Emitting Diode (OLED) Device Using The Same, and A Method of Fabricating the OLED Device
1. A sulfone group-containing compound, having a formula as:
The present invention provides a sulfone group-containing compound, an organic light emitting diode (OLED) device using the sulfone group-containing compound, and a method of fabricating the OLED device. The sulfone group-containing compound has formula as
wherein the bridging unit R is capable of connecting to three or more than three fluorene sulfur oxide units; and the unit R1, R2 and R3 respectively connected to the fluorene sulfur oxide units are selected from alkyl chains, aromatic groups or heterocyclic groups. According to the present invention, the sulfone group-containing compound connects to three or more than three fluorene sulfur oxide units with a bridging unit to form a novel star-shaped molecular structure. The sulfone groups-containing compound combines electron affinity and transport properties of the fluorene sulfur oxide units and spatial characteristics of the star-shaped molecular structure, so that efficiency and lifetime of an OLED device using the same can be enhanced.
- 1. A sulfone group-containing compound, having a formula as:
7. An organic light emitting diode (OLED) device using a sulfone group-containing compound, comprising:
a transparent substrate; an anode, disposed above the transparent substrate; a hole transport layer, disposed above the anode; a light emitting layer, disposed above the hole transport layer; an electron transport layer, disposed above the light emitting layer; and a cathode, disposed above the electron transport layer, wherein at least the electron transport layer or the light emitting layer comprises a sulfone group-containing compound having formula as
- View Dependent Claims (8, 9, 10, 11)