以蒽(Anthracene, An)與芘(Pyrene, Pyr)作為中心結構 加入 B4Ph 基團期望可以讓分子在薄膜呈現水平排列，進而提高出光耦合效率 (????)；另一邊基團置換不同的稠環分子，分別為萘(Naphthalene, Nap)、蒽、菲 (Phenanthrene, Phn)、 芘及苝(Perylene, Pry)，期望可以讓分子增加三重態激子使用率，進而提高 TTA-UC的機率。
本論文合成出兩系列可能具 TTA-UC特性與水平排列共 10個化合物分別為NapAnB4Ph、 AnAnB4Ph、 PhnAnB4Ph、 PyrAnB4Ph、 PryAnB4Ph、NapPyrB4Ph、 AnPyrB4Ph、 PhnPyrB4Ph、PyrPyrB4Ph與 PryPyrB4Ph。所有分子皆進行理論計算和光物理量測 ，亦製成無摻雜有機發光二極體元件量測電致發光性質，從中探討這些化合物具備 TTA-UC性質的可能性。 其中以 PyrAnB4Ph 在元件的
表現上最為優異，其外部量子效率 (external quantum yield, EQE)達 1931CIE座標為 (0.18, 0.19)，為正藍光。且量測暫態電致發光(transient electroluminescence, TrEL)發現其具時間延遲， 表示此元件有利用到三重態激子，並排除其為材料 TADF、HLCT 的可能性， 證實 PyrAnB4Ph OLEDs 很可能有 TTA-UC 的性質。

We designed blue TTA-UC materials using Anthracene (An) and Pyrene (Pyrene, Pyr) as the central structures. Adding B4Ph group is expected to make the molecules arrange horizontally in the film, thereby improving the light coupling efficiency (????). The other side of the group, we replaced different fused-ring moieties, which are Naphthalene (Nap), Anthracene, Phenanthrene (Phn), Pyrene (Pyr) and Perylene (Pry). We anticipated that different fused-ring moieties can affect triplet exciton utilization rate, and thereby increasing the probability of TTA-UC of the designed materials. In this thesis, we synthesized two series of 10 compounds with possible TTA-UC properties and horizontal arrangement (NapAnB4Ph, AnAnB4Ph, PhnAnB4Ph, PyrAnB4Ph, PryAnB4Ph, NapPyrB4Ph, AnPyrB4Ph, PhnPyrB4Ph, PyrPyrB4Ph and PryPyrB4Ph). To discuss TTA-UC conditions, we investigated the theoretical calculations, optical properties, as well as electroluminescent properties of non-doped OLEDs. Among two series, PyrAnB4Ph exhibited the best perform external quantum efficiency (EQE) up to 4.89%, with 1931 Commission Internationale de l' Eclairage coordinates (CIEx,y) of (0.18, 0.19), displaying a true blue electroluminescence.The measurement of transient electroluminescence (TrEL) revealed that it has delayed electroluminescence (EL). Through other measurement studies, we excluded the possibility that it is a TADF and HLCT material, confirming that PyrAnB4Ph OLEDs possess TTA-UC properties.

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