臺灣博碩士論文加值系統

本論文以研究利用溶液式製程製作高效率大面積白色有機發光二極體，主要研究重點為提高大面積OLED元件效率，以達到大面積照明需求。其元件發光面積為3.4cm × 3.4cm，首先調配出白色發光層溶液，發光層為磷光主體材料26DCzppy，摻雜磷光藍色及螢光橘黃色材料FIrpic、Ey53，製作雙波段白光元件，在橘黃色螢光 (Ey53) 摻雜材料濃度0.5 %，在電流密度5 mA/cm2下，效率可達5.54 cd/A，接著將電洞傳輸層加入P型摻雜材料 (F4-TCNQ ) 2 %，將其比例、厚度做最佳化調整，提升元件亮度及效率，在電流密度5 mA/cm2下，效率提升至14.66 cd/A，電子傳輸層厚度 (TPBi) 最佳化後，在電流密度5 mA/cm2下，效率提升至14.9 cd/A。其元件結構為: ITO/spin-PEDOT:PSS(55nm)/spin-TCTA:F4-TCNQ(35nm)/spin-26DCzppy:FIrpic:Ey53(40nm)/evap.-TPBi(30nm)/LiF(0.8nm)/Al(150nm)。

This thesis of research is using solution process to manufacture high-efficiency large-area white organic light-emitting diodes (OLED). The main focus is to improve the efficiency of large-area OLED device in order to achieve a large area lighting needs. Device emitting area 3.4cm × 3.4cm. First, the deployment of a white light emitting layer solution, Emissive layer using phosphorescence host materials 26DCzppy, using doping blue phosphorescence materials Firpic and orange fiuorescent materials Ey53, manufacture of dual-band white device, dopant concentration of 0.5 % the fluorescent orange material (Ey53), device the current efficiency of 5.54 cd/A at current density 5 mA/cm2. Next, P-type dopant material (F4-TCNQ ) 2 % to hole transport layer, proportion and thickness optimized adjustment, enhanced the luminance and efficiency of the device, device the current efficiency of 14.66 cd/A at current density 5 mA/cm2. The thickness optimizing after of the electron transport layer (TPBi), device the current efficiency of 14.9 cd/A at current density 5 mA/cm2. Device structure: ITO / spin-PEDOT:PSS (55nm) / spin-TCTA:F4-TCNQ (35nm) / spin-26DCzppy:FIrpic:Ey53 (40nm) / evap.-TPBi (30nm) / LiF (0.8nm) /Al (150nm).

摘要......i
Abstract......ii
誌謝......iii
目錄......iv
表目錄.....vi
圖目錄......vii
第一章 緒論......1
1.1有機發光二極體簡介......1
1.2溶液式大面積有機發光二極體介紹....2
1.3研究動機......3
第二章 文獻探討......4
2.1有機發光二極體原理與元件結構......4
2.1.1有機發光二極體發光機制.........4
2.1.2有機發光二極體之各層功能介紹...8
2.2溶液式及大面積有機發光二極體元件探討.....9
第三章 實驗方法與步驟.....10
3.1 溶液式OLED元件實驗流程圖.....10
3.2 ITO玻璃基板前處理......11
3.2.1玻璃基板及陽極選擇....11
3.2.2基板清洗、烘烤.......11
3.2.3 ITO陽極圖案化......11
3.2.4 ITO玻璃基板陽極表面處理.....13
3.3 有機材料溶液之塗佈....14
3.3.1有機材料溶液製作及塗佈流程....14
3.3.2材料選擇....16
3.4有機薄膜蒸鍍...19
3.4.1有機蒸鍍製作流程....19
3.4.2材料選擇....21
3.5金屬薄膜蒸鍍....22
3.5.1金屬蒸鍍製作流程....22
3.6 光電特性量測...24
第四章 結果與討論...25
4.1 調變發光層摻雜比例對元件光電特性影響...25
4.2 P-type摻雜導入溶液式大面積白光元件...27
4.2.1調變P-type塗佈厚度對元件光電特性影響...32
4.2.2調變P-type溶液摻雜比例對元件光電特性影響......36
4.3 調變電子傳輸層厚度對元件光電特性影響....40
第五章 結論......44
參考文獻....45
Extended Abstract......47
簡歷....50

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