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研究生： 吳侑唐
Yo-Tang Wu
論文名稱： 高效率紅色螢光錯體有機發光二極體之研製
Highly efficient, red fluorescent, and Exciplex Organic Light-Emitting Diodes.
指導教授： 李志堅
Chih-Chien Lee
口試委員: 李志堅
Chih-Chien Lee
范慶麟
Ching-Lin Fan　
徐世祥
Shih-Hsiang Hsu　
劉舜維
Shun-Wei Liu
學位類別： 碩士
Master
系所名稱： 電資學院 - 光電工程研究所
Graduate Institute of Electro-Optical Engineering
論文出版年： 2018
畢業學年度： 106
語文別： 中文
論文頁數： 87
中文關鍵詞： 有機發光二極體 、激發錯合體 、熱活化延遲螢光 、反向系統間跨越
外文關鍵詞： OLED, EXCIPLEX, fluorescence, Transient electroluminescence, TADF, RISC
相關次數： 點閱：164  下載：3 
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  •  上一筆

    • 本論文以bicarbazole結構之電洞傳輸材料9,9'-Diphenyl-9H ,9'H -3,3'-bicarbazole (BCzPh)作為電子施體，以及triazine結構之電子傳輸材料 3′,3′″,3′″″-(1,3,5-triazine-2,4,6-triyl)tris(([1,1′-biphenyl]-3-carbonitrile)) (CN-T2T)作為電子受體，使用共蒸鍍的方式混和兩種材料，使得在膜層介面上產生高效率的激發錯合體形成，並從PL光譜證明激發錯合體的產生。
    接著透過結構上的調變，分析結構對其效率之影響，並最佳化元件使載子達到平衡得到最佳的元件效率，綜合了結構調變的實驗結果，最佳化元件在無摻雜材料下得到了19%高外部量子效率，摻雜入1%紅色螢光材料Rubrene後得到了12%的外部量子效率，lifetime在加速衰退量測實驗5000 nits下T50得到了3500分鐘的元件壽命。
    最後本論文從Transient electroluminescence 與C-V量測，進行元件更深入的分析。

    In this thesis, we use bicarbazole structure of 9,9'-Diphenyl-9H ,9'H -3,3'-bicarbazole (BCzPh) as electron donor and triazine structure of the electronic transporting material 3′,3′″,3′″″-(1,3,5-triazine-2,4,6-triyl)tris(([1,1′-biphenyl]-3-carbonitrile)) (CN-T2T) as electron acceptor . The two materials were mixed in a co-vapor deposition way to produce highly efficient excitation complexes on the interface, and the exciplex generation was proved by PL spectrum.
    We analyze the effect on the efficiency by changing the structure of the device to achieve the best efficiency with charge balance. The result of optimized device shows 19% and 12% external quantum efficiency with and without fluorescence material Rubrene and lifetime of 3500 minutes with initial brightness of 3000 cd/m2.
    In conclusion, the analysis of Transient EL and C-V measurement were utilized to explore deeper inside the device.

    中文摘要 3 ABSTRACT 4 誌謝 5 總目錄 6 圖目錄 9 第一章 緒論 13 前言 13 有機發光二極體發展歷史 14 第二章 文獻回顧 15 主體材料之材料性質 15 電子傳輸主體材料T2T、T3T與TST之材料性質與元件特性 16 電子傳輸主體材料3P-T2T、oCF3-T2T與3N-T2T之材料性質與元件特性 20 高效率有機激發錯合體之應用 23 類似性質之具有高效率激發錯合體與元件特性 25 研究動機 28 第三章 理論基礎 29 3-1 有機電致放光原理 29 3-2 電激發光機制 32 3-3 有機激發錯合體 33 3-4 元件發光效率 35 第四章 實驗架構 36 4-1實驗設備 36 4-1.1旋轉塗佈機 36 4-1.2材料純化系統 36 4-1.3曝光機 37 4-1.4超音波震盪器 37 4-1.5氮氣循環手套箱 38 4-1.6氧電漿機 39 4-1.7高真空熱蒸鍍機 40 4-1.8真空濺鍍機 43 4-2實驗流程 44 4-2.1 基板清洗 44 4-2.2 真空熱蒸鍍製成 44 4-2.3 元件封裝 45 4-2.4黃光微影製程(Photolithography) 46 4-3量測設備 49 4-3.1探針式膜厚量測儀 49 4-3.2橢圓偏振儀 49 4-3.3分光式輝度計 50 4-3.4原子力顯微鏡 50 4-3.5螢光光譜儀 51 4-3.6 Transient EL 暫態電激發光 52 4-4室溫濺鍍氧化銦錫基板 52 4-5材料介紹 56 4-5.1電洞注入材料 56 4-5.2電洞傳輸材料 57 4-5.3放光材料 57 4-5.4電子傳輸材料 58 4-5.5電子注入材料 59 4-4.6陰極材料 59 第五章 結果與討論 60 5-1基礎元件光譜特性分析 60 5-2有機發光二極體元件結構 62 5-3有機發光二極體元件特性與討論 64 5-4有機發光二極體壽命分析 80 5-5有機發光二極體暫態電激發光分析 80 5-6 C-V量測 82 六章 結論 83 參考文獻 84  

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