本篇論文主要以硼原子作為TADF分子設計概念，硼原子由於本身擁有空的p軌域，空軌域的存在容易導致分子內的電荷轉移現象，而此現象會影響本身物理以及化學的性質。文章裏頭主要有兩大類型的硼錯合物，第一類型硼錯合物主要為含氮原子的電子供體 (donor) 直接連接在以硼原子為主體的電子受體 (acceptor) 上面，此類型硼錯合物在光物理上面皆擁有傑出的光量子產率。利用改變電子供體擁有不同能階高低的HOMO可調控出不同顏色的放光，而當分子結構中擁有剛性最大的電子供體spiroacridine時，元件的外部量子效率 (EQE) 最大可高達19.1%。此種合成簡單且十足新穎的結構渴望在TADF OLED上有更好的發展潛力。而第二類型硼錯合物主要為在原本的氮原子和硼原子之間再多添加一個苯環，並研究苯環連接基對TADF的影響，結果發現，此類型的放光會比第一類型硼錯合物有大幅度的藍位移發生，且在同樣使用剛性電子供體spiroacridine，元件的外部量子效率(EQE)最大可高達24.3%。此兩種類型的硼錯合物討論，我們可以得知什麼樣形式的電子供體會是使元件效率達到最大化的關鍵，這裡所得到的結果將可以應用在未來TADF分子的設計上。

Because of empty p orbital, we try to focus on Boron atom as main concept of TADF molecules. Empty p orbitals in molecule easily result in charge phenomenon, and this will affect both physics and chemistry properties. There are two types boron complexes included in article. The first type boron complex is about nitrogen atom in electron donor directly attach to boron atom in electron acceptor. This type boron complex show really great quantum yield of photophysics data and different electron donor with different energy level of HOMO can release different color of light. The most interesting thing is that when we use spiroacridine as electron donor which has better rigidity, device external quantum efficiency can achieve 19.1%. Simple syntheses and novel architecture will provide potential in future TADF OLED applications. The second type boron complex is about insert phenyl group between nitrogen atom and boron atom from original case and discuss effect of this phenyl group. We find emission great has blue shift relative to first type boron complex. Device can achieve 24.3% high external quantum efficiency, when we use spiroacridine as electron donor as well. These experiment data let us know the key point of choosing electron donor to achieve best external quantum efficiency in device. The result can apply in design of TADF molecule in the future.

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