臺灣博碩士論文加值系統

本論文使用溶液製程製備有機發光二極體元件，當中分成兩個部分，首先，針對大面積(6×11.5 cm2)藍螢光元件進行製程優化，提升元件成膜性及效率，第二部分為利用紅螢光元件摻雜藍螢光材料形成雙摻雜系統，製備一系列中面積(3×4 cm2)之多色光元件。
本研究使用刮刀塗佈的方式製備有機發光二極體元件，元件結構為Glass/ITO/HIL(PEDOT:PSS)/HTL(TFB)/EML/EIL/Cathode，在製程優化這部分，由於電洞注入層(PEDOT:PSS)、電洞傳輸層(TFB)、有機發光層，每一有機層所使用之材料特性不同，分別針對不同有機層進行製程參數上的調整，並分析造成其優劣之可能原因，研究出較佳製程條件，藉此提升元件之成膜性及其效率，在操作電壓7 V時，元件亮度由420 cd/m2提升至550 cd/m2，電流效率可達4.5 cd/A。
第二部分利用雙摻雜系統，搭配溶液製程能使元件呈現兩種客發光體之光譜的特性，藉此發展多色光有機發光二極體，此部分使用中面積(3×4 cm2)紅螢光元件摻雜藍螢光材料形成雙客發光體結構，材料選擇為4-(Dicyanomethylene)-2-tert -butyl-6-(1,1,7,7-tetramethyljulolidin-4-yl-vinyl)-4H –pyran(DCJTB)、(E )-2-(2-tert -Butyl-6-(2-(2,6,6-trimethyl-2,4,5,6-tetrahydro-1H-pyrrolo[3,2,1-ij ]quinolin-8-yl)vinyl)-4H-pyran-4-ylidene)malononitrile(DCQTB)、昱鐳光電科技合成之藍螢光客發光體材料EBN02，透過客發光體濃度的調整及藍螢光材料摻雜比例的調變製備多色光元件，也使元件表現有所提升。

In this thesis, the organic light-emitting diode devices is prepared by a solution process. This thesis contains two parts. Firstly, the optimization of the large-area (6×11.5 cm2) blue fluorescent devices, and improved the film quality and efficiency of the device. The second part is the realization of a series of medium-area (3×4 cm2) multi-color devices by doping blue fluorescent material with red fluorescent devices.
The solution-processed organic light-emitting diode devices were prepared by blade coating. The device structure is Glass/ITO/HIL (PEDOT:PSS)/HTL(TFB)/EML/EIL/Cathode. The process parameters for different organic layers were optimized. Possible causes of the advantages and disadvantages of the specific processing parameter were analyzed. Thereby improving the film quality of the devices and efficiency. The brightness of the component is increased from 420 cd/m2 to 550 cd/m2 and current efficiency is 4.5 cd/A at an operating of 7 V.
The second part of the thesis uses a co-doping system to realize multi-color medium-area (3×4 cm2) red organic light-emitting diodes. By doping with a blue fluorescent material in the emitting layer of the red organic light-emitting diode to form a double guest emitter structure, and the material is selected as 4-(Dicyanomethylene)-2-tert-butyl-6-(1,1,7,7-tetramethyljulolidin-4-yl-vinyl)-4H-pyran(DCJTB),(E)-2-(2-tert-Butyl-6-(2-(2,6,6-trimethyl-2,4,5,6-tetrahydro-1H-pyrrolo[3, 2,1-ij ]quinolin-8-yl)vinyl)-4H-pyran-4-ylidene)malononitrile(DCQTB), and blue fluorescent material EBN02 (E-Ray Optoelectronics Technology Co., Ltd.).Through the adjustment of the concentration of the each emitter,multi-color devices were realized and also improve the performance of the devices.

摘要 i
Abstract ii
致謝 iii
目錄 v
表目錄 vii
圖目錄 viii
第一章、緒論 1
1.1前言 1
1.2有機發光二極體發展簡介 1
1.3研究目的 2
1.4論文架構 2
第二章、有機發光二極體結構與基礎理論 3
2.1有機發光二極體元件結構 3
2.2放光機制 4
2.3螢光與磷光發光原理 4
2.4主發光體與客發光體能量轉移機制 5
第三章、有機發光二極體元件製作流程與材料介紹 7
3.1元件製作流程 7
3.1.1 ITO基板蝕刻 7
3.1.2 有機薄膜刮塗 9
3.1.3 元件蒸鍍與封裝 12
3.1.4 元件電性量測 14
3.2實驗材料介紹 15
3.2.1電洞注入材料 15
3.2.2電洞傳輸材料 15
3.2.3電子傳輸材料 17
3.2.3客發光體材料 18
第四章、實驗設計與結果討論 20
4.1 電洞注入層PEDOT:PSS AI4083與CH8000之比較 20
4.2 有機發光二極體藍螢光元件改善 24
4.2.1 不同發光層濃度測試 24
4.2.2 電洞傳輸層刮塗速度調整 28
4.2.3 發光層刮塗之基板溫度調整 32
4.2.4三元主發光體藍螢光發光面積(3×4 cm2)與(6×11.5 cm2)元件比較39
4.3比較EBN02與Blue-D差異 41
4.4透過混合藍螢光材料EBN02與紅螢光材料製備混光元件 45
4.4.1客發光體濃度2%調整EBN02與DCJTB比例 46
4.4.2客發光體濃度2%調整EBN02與DCQTB比例 52
4.4.3客發光體濃度2%紅螢光材料DCJTB與DCQTB比較 58
4.4.4客發光體濃度4%調整EBN02與DCQTB比例 62
第五章、結論與未來發展 69
參考文獻 70

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