本實驗室已發展各種不同類型的螺旋烯化合物，並研究其光物理性質時發現，當改變不同上下盤結構時會有明顯系統區分，第一種系統為上盤以吨酮及衍生物和二芐環庚烯酮衍生物為基本骨架而下盤採用單一苯環C(2)具L-menthol (1R,2S)-2-(1-Methyl-1-phenylethyl)- cyclohexanol 光學輔助基合成的螺旋烯類化合物，第二種系統則為本論文中，上盤是二芐環庚烯酮以及下盤是β-naphthoflavine為骨架的螺旋烯類化合物，從螢光量子產率的變化，發現其能量釋放方式為所吸收的能量由於轉動能障較大而趨向由放光方式回到基態，因此，我們設計了一系列不同結構分子，使得第二種系統的吸收光譜之長波長範圍到達λmax = 363 nm（in n-Hexane），而其放射波長亦可達到藍光範圍（λmax = 478nm（in n-Hexane）。此外，本論文也利用鈀催化方式，合成了一系列以（cabazole）為骨架所衍生的芳香胺（arylamines）類衍生物，這些具有非晶形性質的化合物有著高玻璃轉換溫度 (Tg, 122-130 °C) 和高熱分解溫度 (Td, 298-377 °C) ，其放射波長範圍依其結構之差異可從綠光到藍光不等，我們利用此特性將上述兩類型分子嘗試應用於有機電致發光二極體元件（OLED）上。雖無令人滿意的結果，但此類分子的設計仍有極大空間，相信對於在OLED此領域新型材料的開發上將有所幫助。

In our research of the triarylethenes with helical shapes (helicenes), we have developed a new system consisted of dibenzosuberene upper part and  naphthoflavine lower part. The energy relaxation of this system mainly proceeds through a fluorescence process namely termed as fluorescenct emission procedure. By taking advantage of the energy difference of the relaxation route, we have designed a new prototype based on DBE and  naphthoflavine helicenes to tune their longer absorption band toward 363 nm ( in n-Hexane ) and the emission band 478nm ( in n-Hexane ). We also synthesized several stable carbazole derivatives that contain peripheral diarylamines at the 3- and 6-positions and a phenyl substitute at the 9-position of the carbazole moiety via palladium-catalyzed C-N bond formation. These new carbazole compounds (carbs) are amorphous with high glass transition temperatures (Tg, 122-130°C) and high thermal decomposition temperatures (Td, 298-377 °C). The compounds are weakly to moderately luminescent in Dichloromethane. The emission wavelength ranges from green to blue and is dependent on the substituents at the peripheral nitrogen atoms. We applied the compounds in the field of OLED. Although the results are not satisfactory, but we believed it would be helpful for designing new type of OLED materials.

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