本論文目的在於將有推電子基的diarylamine基團加入在phenylpyridine配位基的銥金屬錯合物上，形成具有強磷光性質的銥金屬錯合物，並探討強推電子基引入銥金屬錯合物後，對其光物、電化學及元件等性質之影響。 在光物理方面，triarylamine-pyridine系列銥金屬錯合物，其溶液態放光光譜從516-532 nm，屬於黃綠光。其中Bis(9-(4-(2’-pyridinyl)phenyl)carbazolato-N’,C3) iridium(III) (acetyl acetonate) [(ppy-cbz)2Ir(acac)]在室溫下其溶液態的量子產率最好，高達0.5。在電化學方面，此系列銥金屬錯合物在循環伏安法下，會測得兩個陽極氧化還原對 (anodic redox couples)，由diarylamine取代基及Ir-phenyl中心連續失去電子分別形成自由基陽離子 (radical cations) 及自由基二陽離子 (radical dication)，這與一般的氧化峰不同，是由diphenylamine所貢獻的。元件結構為ITO / NPB / BAlq : 6% (ppy-cbz)2Ir(acac) / Alq3 / Al : LiF，當電壓為15 V時，最大亮度為3322 cd/m2，而最大發光效率及能量效率分別為4.3 cd/A及1.1 lm/W，電激放光波長在516 nm，屬於綠光，CIE位置在 (0.32, 0.53)。

the thesis describes the incoorpation of electron-donating diarylamine group to the phenylpyridine ligands and use these ligands to prepare Ir-complexes that exhibit strong phosphorescence. The photophysical and electrochemical properties of these Ir complexes were investigated. In CH2Cl2, these Ir complexes emit yellow-green phosphorescence within the wavelenghth ranging of 516 to 522 nm. Among the Ir-complexes, Bis(9-(4-(2’-pyridinyl)phenyl)carbazolato-N',C3)iridium(III) (acetyl acetonate) [(ppy-cbz)2Ir(acac)] show the best quantum yield up to 0.5 at room temperature. Cyclic voltammograms of these Ir complexes show two anodic redox couples that correspond to the sequential removal of electrons from the peripheral diarylamine group and Ir-phenyl center to form radical cations and dications, respectively. The (ppy-cbz)2Ir(acac) was test for electroluminescent devices.The device structure is ITO/NPB/BAlq:6% (ppy-cbz)2Ir(acac) /Alq3/Al:LiF. For this device, the maximum luminance is 3322 cd/m2 at a voltage of 15V, and the maximum luminance efficiency and power efficiency are 4.3 cd/A and 1.1 lm/W, respectively, with the emission of 516 nm. The corresponding CIE corrdinate is x=0.32, y=0.53.

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