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研究生:林承叡
研究生(外文):Chen-jui Lin
論文名稱:吡咯衍生物於高演色性暖白光螢磷混合有機發光二極體之應用研究
論文名稱(外文):Study of pyrrole derivative in high color-rendering warm-white fluorescent-phosphorescent organic light-emitting-diodes
指導教授:陳俐吟陳俐吟引用關係
指導教授(外文):Li-Yin Chen
學位類別:碩士
校院名稱:國立中山大學
系所名稱:光電工程學系研究所
學門:工程學門
學類:電資工程學類
論文種類:學術論文
論文出版年:2017
畢業學年度:105
語文別:中文
論文頁數:77
中文關鍵詞:CIE座標圖高演色性白光有機元件螢光主體材料螢磷混合式白光有機發光二極體
外文關鍵詞:white OLEDshybrid fluorescent-phosphorescentCIE coordinateshigh color-rendering WOLEDsfluorescent host materials
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近年來白光有機發光二極體(WOLEDs)在照明的應用上引起了很大的討論,因它較適合應用於大面積固態照明上。本論文研究以吡咯(pyrrole)為中心基團的npCz螢光材料開發螢磷混合式WOLED,因npCz本身會放出藍綠色,與紅色磷光材料Ir(pq)2(acac)恰為互補光,因而此元件使用npCz作為藍綠色螢光發光層,搭配使用npCz作為螢光主體摻雜Ir(pq)2(acac)之紅色磷光發光層。

本論文主要為優化元件內部的電洞與電子傳輸層,並藉由CIE座標圖的分析,成功製作出高演色性之暖白光元件,最大亮度達到3450 cd/m2,最大功率效率為5.5 lm/W,CIE座標為(0.44,0.44),CRI指數為90,色溫3282 K。
White organic light-emitting diodes (WOLEDs) are attracting significant attention due to its unique merits of fabrication of large-scale for solid-state lighting sources. In this thesis, a blue-green emissive pyrrole derivative named as npCz was used to develop fluorescent-phosphorescent hybrid WOLED. The emission color of npCz is complementary to the emission color of Ir(pq)2(acac). Thus, the hybrid device utilize npCz as both the fluorescent emissive material and fluorescent host doped with Ir(pq)2(acac).

This thesis is mainly to optimize the hole and electron transport layer with the analysis of CIE coordinates. Finally,high color rendering warm-white OLED was realized with the following structure: ITO/TCTA (40nm)/ npCz:1 wt% Ir(pq)2(acac) (15nm)/npCz (15 nm)/TmPyPB (50 nm)/LiF(0.5 nm)/Al(130 nm). The device exhibited maximum luminance of 3450 cd/m2, maximum power efficiency of 5.5 lm/W, CIE coordinates of (x,y)=(0.44, 0.44), CRI = 90, and CCT = 3282 K
中文論文審定書 i
英文論文審定書 ii
致謝 iii
摘要 iv
目錄 vi
圖目錄 viii
表目錄 x
壹、緒論 1
1-1 前言 1
1-2 有機發光二極體發展歷史 2
1-3 白光有機發光二極體元件 5
1-4 研究動機與目的 7
貳、基礎理論 8
2-1 有機電激發光原理 8
2-1-1 載子注入與激子形成 8
2-1-2 螢光(fluorescence)與磷光(phosphorescence)發光機制 11
2-1-3 主客體能量轉移 13
2-2 白光元件照明分析 16
2-2-1 色座標(CIE 1931色彩空間) 16
2-2-2 相對色溫度(correlated color temperature) 17
2-2-3 演色性指標(color rendering) 18
2-3 螢光(fluorescence)白光元件 19
2-4 磷光(phosphorescence)白光元件 23
2-5 混合式(hybrid)白光元件 26
參、實驗配置 29
3-1 實驗儀器 29
3-1-1 純化系統-管式高溫爐(tube-furnace) 29
3-1-2 紫外光臭氧清洗機(UV-ozone) 29
3-1-3 高真空熱蒸鍍系統(vacuum deposition system) 30
3-1-4 低水氧手套箱(glove box) 31
3-2 實驗流程圖 32
3-3 元件製作步驟 32
3-3-1 ITO基板清洗與前處理 32
3-3-2 薄膜蒸鍍 32
3-3-3 元件封裝 33
3-4 元件特性量測 34
肆、結果與討論 36
4-1 npCz材料特性 36
4-2白光元件結構 39
4-3陽陰極載子注入對元件光色穩定度之影響 40
伍、總結 60
參考文獻 61
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