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研究生：	洪嘉駿 Hong, Jia-Jyun
論文名稱：	以[2.2]對環芳建構的雙極性有機發光二極體材料 [2.2]Paracyclophane-based Ambipolar Compounds for Organic Light Emitting Diodes Application
指導教授：	葉名倉 Yeh, Ming-Chang 林建村 Lin, Jiann-Tsuen
學位類別：	碩士 Master
系所名稱：	化學系 Department of Chemistry
論文出版年：	2018
畢業學年度：	106
語文別：	中文
論文頁數：	106
中文關鍵詞：	有機發光二極體、[2.2]對環芳、雙極性載子傳輸、主體材料、藍光材料
英文關鍵詞：	OLED, [2.2]paracyclopane, ambipolar carrier mobility, host material, blue light emitter
DOI URL：	http://doi.org/10.6345/THE.NTNU.DC.061.2018.B05
論文種類：	學術論文
相關次數：	點閱：117 下載：6
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本研究合成出六個以PCP（[2.2]paracyclophane）為結構核心的HJJ系列雙極性分子，藉由引入不同的推電子基（arylamine或 9H-carbazole），搭配cyano拉電子基，以及共軛鏈長之改變來調控分子雲的定域化程度，五個分子結構且經過X-ray晶體繞射圖譜鑑定。此系列分子擁有寬能隙(> 3.25 eV)，螢光光色在極性溶劑和非極性溶劑中皆屬紫／藍光。此系列分子的熱裂解溫度在250 oC以上。HJJ-2發現薄膜態有堆疊誘導強化發光現象，其螢光量子產率高達82%，且具有雙極性載子傳輸能力。以之作為發光層製成電激發光元件，外部量子效率可達約0.5%。以上化合物具有做為藍光發光材料或摻雜發光材料之主體（host）材料的潛力。

Six [2.2]paracyclophane derivatives, HJJ, have been synthesized. The electronic cloud localization of the molecules is tuned by varying electron donor (diphenylamine or 9H-carbazole) and electron acceptor (cyano) at the pseudopara sites of the [2.2]paracyclophane, and the conjugation length. Among them, five compounds were structurally characterized by single crystal X-ray diffraction. The six new compounds have a large HOMO/LUMO gap (> 3.25 eV) and emit purple/blue light. The thermal decomposition temperatures of the compounds are higher than 248 oC. In the film state, compound HJJ-2 exhibits aggregation-induced emission enhancement behavior with a high film quantum yield of 82%. Moreover, it exhibits bipolar carrier transport characteristics, and its electron and hole mobilities are 1.47 × 10-3 and 1.15×10-6 cm2/Vs, respectively. OLED device using the compound as the emitting layer has an external quantum efficiency (EQE) of 0.5%. The new compounds are potential blue light emitters or hosts for emitting fluorophores.

第一章、緒論    1
1-1 前言    1
1-2 有機發光二極體的起源以及發展    2
1-3 有機發光二極體之放光機制    4
1-4 有機發光二極體之元件設計    6
1-4-1 陰極材料    7
1-4-2 電子傳輸層    8
1-4-3 發光層    9
1-4-4 電洞傳輸層    13
1-4-5 陽極材料    14

第二章、研究動機    15
2-1 核心架構    15
2-2 推電子基團    16
2-3 拉電子基團    16
2-3 目標分子之結構    18

第三章、實驗方法    19
3-1 實驗儀器    19
3-2 套用公式及介紹    21
3-2-1 能階值之計算    21
3-2-2 量子產率之計算    22
3-3 實驗藥品及溶劑    23
3-4 合成步驟    26

第四章、結果與討論    46
4-1 合成步驟設計與機制探討    46
4-2 光物理性質探討    52
4-3 分子能階探討    55
4-4 單晶繞射結果與探討    62
4-5 熱穩定性質探討    70

第五章、元件量測結果與討論    72
5-1 材料物理性質    72
5-2 元件效率    74

第六章、結論與未來展望    78

第七章、參考文獻    79

附錄    84
                                

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