香豆素與有機銥錯合物於發光二極體的應用

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鄭勝偉(Sheng-Wei Jheng) 查詢紙本館藏

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化學學系

論文名稱

香豆素與有機銥錯合物於發光二極體的應用
(The Application of Coumarin and Iridium Complex in Organic Light Emitting Diodes)

相關論文

★ 苯-乙烯-乙炔-共軛寡分子光電性質的研究	★ 有機電光材料修飾之硒化鎘奈米粒子的合成及性質研究
★ 螺環茀-吖啶高分子在發光二極體上的應用

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摘要(中)

本篇中我們以spirobifluorene與一系列具有不同取代基的coumarin衍生物共聚合成高分子，利用旋轉塗佈法製成元件，進行光、電性質的探討。由於spirobifluorene為高剛性分子，因此這些高分子都具有相當高的Tg。以[ITO/PEDOT/polymer/ TPBI/LiF/Al]結構製成元件，其中效能最佳的元件放光波長位於442 nm，為相當純的藍光。起始電壓為6.7 V，最大亮度及最大外部量子產率分別為1244 cd/m2及1.32 %，最大發光效率及最大功率效率則分別為1.14 cd/A及0.43 lm/W。
此外，有鑒於磷光元件具有發揮趨近100%的內部量子效率的潛力。我們也合成了一系列具有不同取代基的Iridium錯合物，作為磷光摻雜物，同樣與spirobifluorene共聚合成高分子並製成元件。所製成的最佳元件起始電壓為4.7 V，最大亮度及最大外部量子產率分別為3627 cd/m2及1.44 %，最大發光效率及最大功率效率也有4.03 cd/A及1.75 lm/W。

摘要(英)

We have synthesized a series of fluorene based copolymer with coumarin derivatives as dopant. The photophysical, electrochemical and electroluminescene properties of these copolymers has been systematically investigated. The glass transition temperatures of these copolymers are very high, since the rigidity of polyfluorene backbone. Pure blue electroluminescene was achieved from these copolymers as an emitting layer in light emitting device. A maximum brightness of 1244 cd/m2 and a maximum external quantum efficiency of 1.32 % was obtained in the configuration ITO/PEDOT/polymer/ TPBI/LiF/Al.
Since Ir(III) complex is reported to have probable 100% internal quantum efficiency, we synthesized another series of fluorene based copolymer with different substituted groups on the Ir complex as dopant. The device produced a maximum brightness of 3627 cd/m2 and a maximum external quantum efficiency of 1.44 %.

關鍵字(中)

★ 發光二極體

關鍵字(英)

★ Light Emitting Diodes

論文目次

第一章緒論...............................................1
1-1 前言..................................................1
1-2 有機發光二極體的發展..................................2
1-3 放光原理..............................................3
1-4 主客發光體摻雜系統....................................5
1-5 OLED的基本結構........................................7
1-6 發光效率.............................................10
1-7 發光顏色.............................................11
1-8 研究動機.............................................13
第二章 Coumarin系列結果與討論............................14
2-1 Coumarin單體合成.....................................14
2-2 Coumarin高分子合成...................................15
2-3 Coumarin單體光性質...................................17
2-4 高分子光性質.........................................18
3-5 高分子電化學性質.....................................19
3-6 元件效能.............................................21
第三章 Ir系列結果與討論..................................28
3-1 Ir單體合成...........................................28
3-2 Ir高分子合成.........................................30
3-3 Ir單體光性質.........................................32
3-4 高分子光性質.........................................33
3-5 高分子電化學性質.....................................35
3-6 元件效能.............................................37
第四章實驗部份..........................................42
4-1 儀器.................................................42
4-2 藥品.................................................44
4-3 單體合成.............................................45
4-3-1 Cab、Cac、Cae的合成................................45
4-3-2 Irae、Irbe、Irce的合成.............................52
4-3-3 Irba、Irbb、Irbc、Irbd、Ircc的合成.................54
4-4高分子合成............................................57
4-5 元件製作與性質測定...................................57
第五章結論..............................................59
參考文獻.................................................61
附錄一 NMR光譜...........................................64
附錄二單體光性質........................................93
附錄三高分子光性質......................................94
附錄四高分子熱性質......................................96
附錄四高分子電性質......................................97
附錄五元件效能..........................................98

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指導教授

王添福(Tein-Fu Wang)

審核日期

2006-7-4

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