磷光系統的有機發光二極體雖有高亮度及高效率等優點，但成本也相對昂貴，而螢光系統有機發光二極體價格雖低廉，但整體電性表現卻不如磷光系統，而本論文利用熱活化延遲螢光(Thermally Activated Delayed Fluorescence, TADF )材料DMAC-DPS(10,10′-(4,4′-Sulfonylbis(4,1-phenylene))bis(9,9-dimethyl-9,10- dihydroacridine))搭配藍螢光材料TBPe(2,5,8,11-Tetra-tert-butylperylene)利用本實驗室獨有的刮刀塗佈技術，以溶液製程的方式製作出有機發光二極體元件，透過找尋合適的主發光體材料以及調配發光層溶質之間的比例來改善元件的電性表現。相較於磷光與螢光系統，其成本較低且電性上也有與磷光相近的表現。
此外本論文將電子注入材料溶入有機溶劑之中，並同樣以刮刀塗佈製備有機發光二極體元件，藉由改變不同的刮刀速度和加速度來調整電子注入層之膜厚，以及測試不同溶液濃度藉此找尋最佳製程參數，達到全溶液製程的希望。

Although the organic light-emitting diode of the phosphorescent system has the advantages of high brightness and high efficiency, but the cost is relatively expensive. The price of the fluorescent materials is low, but the overall electrical performance is not as good as that of the phosphorescent system. In this thesis, the thermally activated delayed fluorescence (TADF) material DMAC-DPS(10,10′-(4,4′-Sulfonylbis(4,1-phenylene))bis(9,9-dimethyl-9 ,10- dihydroacridine)) with blue fluorescent guest material TBPe (2,5,8,11-Tetra-tert-butylperylene) are used to produce the solution-processed organic light-emitting diode devices with the unique blade coating technology of our laboratory. The electrical performance of the device is improved by finding a suitable host material and adjusting the ratio between the solutes of the light emitting layer. Compared with phosphorescent and fluorescent systems, TADF system cost is lower and its electrical performance is as well as phosphorescent system . In addition, in this thesis, electron injection material is dissolved in an organic solvent in order to be used in solution process by blade coating technology. The film thickness of the electron injection layer is adjusted by changing different blade speeds and accelerations, and different concentrations of electron injection solutions are tested for finding the best process parameters to achieve the hope of the full solution process.

摘要----------------------------------i
Abstract-----------------------------ii
致謝----------------------------------iv
目錄----------------------------------v
圖目錄--------------------------------vii
表目錄--------------------------------x
第一章、緒論---------------------------1
1.1 前言------------------------------1
1.2 有機發光二極體起源簡介--------------1
1.3 研究目的---------------------------2
1.4 論文架構---------------------------3
第二章、有機發光二極體基礎結構與理論------4
2.1 有機發光二極體結構------------------4
2.2 發光原理---------------------------5
2.3 熱活化延遲螢光發光原理--------------6
2.4 主發光體及客發光體能量轉移機制-------7
2.4.1 輻射能量轉移---------------------7
2.4.2 非輻射能量轉移-------------------8
第三章、OLED元件製作流程及材料簡介-------10
3.1 OLED元件製作之流程-----------------10
3.1.1 ITO基板蝕刻---------------------10
3.1.2 有機薄膜塗佈---------------------13
3.1.3 電子注入層及電極蒸鍍--------------17
3.1.4 元件封裝與電性量測----------------17
3.2 實驗材料簡介-----------------------20
3.2.1 電洞注入材料---------------------20
3.2.2 電洞傳輸材料---------------------21
3.2.3 TADF材料------------------------21
3.2.4 主發光體材料---------------------22
3.2.5 介面層材料-----------------------25
第四章、實驗結果與分析------------------26
4.1 有機發光二極體TADF元件之電性改善-----26
4.1.1 CzSi為主發光體測試---------------26
4.1.2 更換主發光體為SimCP2-------------29
4.1.3 檢驗電子或電洞之不足--------------33
4.1.4 SimCP2搭配SPPO13雙主光體---------36
4.1.5 替換SimCP2為TCTA搭配SPPO13為雙主發光體--40
4.2 有機發光二極體TADF元件之膜面改善-----44
4.2.1 基板溫度之調變-------------------44
4.3 介面層應用於TADF有機發光二極體-------49
4.3.1 測試不同介面層之下藥量------------49
4.3.2 提升刮刀之速度與加速度------------54
4.3.3 介面層最佳參數應用於Li3N----------59
第五章、結論與未來展望------------------63
第六章、參考文獻-----------------------65

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