Novel conjugated-bridged triphenylene derivatives with electroluminescent properties were synthesized. A six step synthesis yields the cyanomethyltriphenylene derivatives (7a–7d). These were condensed by applying a Knoevenagel reaction with the alkoxy substituted dialdehyde 8 to PPV analogous short chain compounds 9a–9d. The products 9a–9d show bright orange to red photoluminescence. They are suitable as the emissive layer in organic light-emitting diodes (OLEDs), both in single and double layer arrangements with copper phthalocyanine as the hole transport layer.
具有电致发光特性的新型共轭桥连三苯基衍
生物已成功合成。通过六步合成步骤,得到了
氰甲基三苯基衍
生物(7a–7d)。这些衍
生物通过Knoevenagel反应与烷氧基取代的二醛8缩合,生成了类似PPV的短链化合物9a–9d。产物9a–9d显示出明亮的橙色至红色光致发光特性,适合作为有机发光二极管(OLED)中的发射层,无论是单层还是双层结构,均可与
铜酞菁作为空穴传输层配合使用。