摘要 環型的銥金屬錯合物是近年來具有突破性的磷光發光材料。它的元件性能是純有機分子所構成的螢光發光體所無法相比的。紅光及綠光的材料已經有令人滿意的發展，但藍光的進展卻困難重重。 本文主要在探討如何達成純藍光的銥金屬錯合物。我們有系統地設計雙芳香環的配位基，並利用鈀催化的偶合反應將它們合成出來。經由錯合物的結構分析及發光長的比較，我們成功的確定出達成銥金屬藍光錯合物的方向。 Abstract Phosphorescent cyclometalated iridium complexes has revolutionized the world of OLED (organic light-emitting diodes) materials. The much higher quantum efficiency of devices fabricated with this kind of materials was never achieved by simple organic emitters. Red light and also green light-emitting iridium complexes have made themselves candidates for real-world use, while blue light-emitter is still way behind mature. The main goal of this thesis is to investigate how to achieve the pure blue light-emitting iridium complexes. Ligands were systematically designed and synthesized with the aid of palladium catalyzed cross-coupling reactions. Analysis of structures and emission spectra of the resulting complex makes it possible for us to design and to achieve the pure blue light-emitting iridium complexes in the days to come.