8-HYDROXYQUINOLINE-BASED WHITE-LIGHT-EMITTING ORGANIC ELECTROLUMINESCENT MATERIAL
申请人:Xu Bingshe
公开号:US20110263856A1
公开(公告)日:2011-10-27
A white-light organic electroluminescent material based on 8-hydroxyquinoline and the method for preparing the same, as well as an organic light emitting diode including this material. The material may be the compound represented by the Formula (IX) having a DCDC group, a 5-position substituted 8-hydroxyquinolinyl group and a carbazolyl group as red light-, green light- and blue-light emitting groups, respectively. It exhibits a spectrum having a band width of 182.4 nm that substantially covers the visible-light region, and has a color coordinate of (0.3177, 0.3946), which just locates within the white-light area. Such a material is capable of realizing a white-light emission, and may be used in a white-light OLED as a single light-emitting layer, which can decrease the number of layers of the white-light OLED and thereby improve the luminous efficiency, stabilize the light color, lower the turn-on voltage and simplify the fabrication process.
一种基于8-羟基喹啉的白光有机电致发光材料及其制备方法,以及包括该材料的有机发光二极管。该材料可以是由具有DCDC基团、5-位取代的8-羟基喹啉基团和咔唑基团作为红光、绿光和蓝光发射基团的化合物所代表的式(IX)的化合物。它展现出一个带宽为182.4纳米的光谱,基本覆盖可见光区域,并具有颜色坐标为(0.3177,0.3946),恰好位于白光区域内。这样的材料能够实现白光发射,并可以作为单个发光层用于白光OLED中,可以减少白光OLED的层数,从而提高发光效率,稳定光色,降低开启电压并简化制造工艺。