Disclosed is an arylsulfonic acid compound characterized by being represented by formula (1). By using this compound as an electron-acceptor material, highly uniform film formability can be achieved. By using a thin film containing the arylsulfonic acid compound in an OLED device or a PLED device, there can be obtained excellent EL device characteristics such as low driving voltage, high luminous efficiency and long life.
In the formula, X represents O; Ar represents a substituted phenyl group; and n represents the number of sulfonic groups, which is an integer of 1-4.
本发明公开了一种芳基
磺酸化合物,其特征是由式(1)表示。使用该化合物作为电子受体材料,可实现高度均匀的薄膜成型性。通过在 OLED 设备或 PLED 设备中使用含有该芳基
磺酸化合物的薄膜,可获得优异的 EL 设备特性,如低驱动电压、高发光效率和长寿命。
式中,X 代表 O;Ar 代表取代的苯基;n 代表
磺酸基团的数目,为 1-4 的整数。