The present invention discloses a phenanthrene derivative having the following structure:
wherein Ar
1
and Ar
2
independently are phenyl, nathphyl, heterocyclic group, polycyclic aromatic or polycyclic heterocyclic group with at least one conjugated substituent. The conjugated substituent can be an electron withdrawing group or electron donating group. The phenanthrene derivatives have semiconductor properties of electron transfer, electroluminescence (EL), and photoluminescence (PL). Intermolecular stacking can be avoided and electron-luminescent emission stability is enhanced when the derivatives are applied as a light-emitting material in organic EL devices due to the presence of the two stereo cyclopentane rings, such as a host compound or a dopant emitting blue light.
本发明公开了一种具有以下结构的
菲衍
生物:
其中 Ar
1
和 Ar
2
分别为苯基、
萘基、杂环基团、多环芳香基团或多环杂环基团,并带有至少一个共轭取代基。共轭取代基可以是退电子基团或供电子基团。
菲衍
生物具有电子传递、电致发光(EL)和光致发光(PL)的半导体特性。由于存在两个立体
环戊烷环(如发射蓝光的宿主化合物或掺杂剂),当这些衍
生物用作有机电致发光器件中的
发光材料时,可以避免分子间堆叠,并提高电子发光发射的稳定性。