藍光有機發光二極體最常被討論的問題是效率低且壽命較短，本論文採用三元單發光層結構，在此結構中包含客發光體Blue-D及三元主發光體材料SPPO13(2,7 Bis(diphenylphosphory l) 9,9' spirobifluorene)、 CzSi 9-( 4-tert-Butylphenyl)-3,6-bis(triphenylmethanealkyl)-9H-carbazole及 BAnF8Pye (1-(7-(9,9'-bianthracen-10-yl)-9,9-dioctyl-9H -fluoren-2-yl)pyrene).，而發光層包含Czsi之元件的電性有大幅的提升，在操作電壓6V時發光效率為5.9 cd/A，亮度為1017 cd//m2，析出結晶點也減少許多，壽命也有改善一些，但有色光偏移的現象，元件CIEx,y= (0.207,0.3609)且色光呈現藍綠色，因此後來採用昱鐳光電科技股份有限公司之藍螢光客發光體測試材料EB-N01，得到主波峰波長472 nm之元件且CIEx,y=(0.1652, 0.2871)，元件色光呈現天藍色，解決了色光偏移的現象。接著利用該材料混合綠螢光客發光體C545T，以調整兩種材料的比例以達到色光多元性的效果，實驗結果得到在CIEx,y=(0.1659, 0.2834)、CIEx,y=(0.2565, 0.6288)之間的多種色光之元件。

The blue OLEDs are consider as low efficiency and short lifetime. In this work, we focus on the blue OLEDs with ternary single emissive layer, consisting of a guest material Blue-D and host materials SPPO13(2,7 Bis(diphenylphosphory l) 9,9' spirobifluorene), Czsi 9-( 4-tert-Butylphenyl)-3,6-bis(triphenylmethanealkyl)-9H-carbazole and BAnF8Pye (1-(7-(9,9'-bianthracen-10-yl)-9,9-dioctyl-9H -fluoren-2-yl)pyrene). The device with CzSi in the emissive layer shown better performance. The current efficiency was 5.9 cd/A, and the luminance was 1017cd/m2 at applied voltage 6V with less precipitated crystallites. Furthermore, the lifetime was longer. However, there was still a problem of color shifting. The CIEx,y coordinates was (0.207 0.3609) and the color of devices was aquamarine. Therefore, the blue fluorescent guest material EB-N01 (e-Ray Optoelectronics Technology Co., Ltd.) was used to solve this problem. The peak wavelength of the electroluminescence spectrum of the device with EB-N01 was at 472 nm and the CIEx,y coordinates was (0.1652, 0.2871). The color of the devices looked like sky blue so there was no problem of color shiting.. Furthermore, we doped green fluorescent guest material C545T to realize multi-color devices, with CIEx,y coordinates between (0.1659, 0.2834) and (0.2565, 0.6288).

摘要 i
Abstract ii
致謝 iv
目錄 vi
圖目錄 viii
表目錄 xi
第一章 緒論 1
1.1 前言 1
1.2 有機發光二極體發展史 1
1.3 研究目的 3
1.4 論文架構 3
第二章 有機發光二極體之結構與原理 4
2.1 基本結構 4
2.2基本發光原理 5
2.3螢光與磷光發光機制 5
2.3主客發光體能量轉移 7
2.3.1輻射能量轉移 7
2.3.2非輻射能量轉移 8
第三章 實驗流程與材料介紹 10
3.1 元件製程簡介 10
3.1.1 基板蝕刻 10
3.1.2 薄膜塗佈 15
3.1.3 蒸鍍封裝 20
3.1.4 電性量測 21
3.2 有機材料介紹 23
3.2.1 電洞注入材料 23
3.2.2 電洞傳輸材料 23
3.2.3 電子傳輸材料 25
3.2.4 客發光體材料 25
第四章 實驗設計與結果分析 27
4.1 中面積藍螢光有機發光二極體之效能改善 27
4.1.1 藍螢光有機發光層最佳膜厚測試 28
4.1.2 藍螢光有機發光層之三元主發光體元件 32
4.1.3 三元藍螢光有機發光層包含電洞傳輸材料Czsi 33
4.1.4 三元藍螢光有機發光層包含電洞傳輸材料TCTA 39
4.1.5 二元、三元藍螢光元件實驗結果比較 43
4.2 藍螢光有機發光二極體之色光多元性 50
4.2.1 藍螢光客發光體Blue-D比例調整 51
4.2.2 昱鐳光電科技股份有限公司客發光體材料EB-N01測試 54
4.2.3 三元藍螢光元件包含客發光體Blue-D、EB-N01之比較 59
4.3 雙客發光體EB-N01與C545T混摻之色光觀察 62
4.3.1 三元綠螢光元件包含C545T之元件特性分析 62
4.3.2 混摻客發光體EB-N01與C545T的比例調整 66
第五章 結論與未來展望 74
第六章、參考文獻 75

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