局域性表面電漿效應應用於增益有機發光二極體發光強度之參數優化研究

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楊萬嶸(Wan-Jung Yang) 查詢紙本館藏

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能源工程研究所

論文名稱

局域性表面電漿效應應用於增益有機發光二極體發光強度之參數優化研究

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摘要(中)

本研究使用數值模擬以及實作驗證進行局域性表面電漿效應(LSPR, Localized Surface Plasmon Resonance )應用於增益有機發光二極體(OLED)發光強度之參數優化研究。
OLED為近幾年來的新興節能產品，擁有面光源、低耗能等優點，非常適合應用於室內照明。但由於開發時間較LED晚，要打入現今照明市場，其發光強度、製作成本都必須要有顯著的突破。在眾多提昇其發光強度的研究中，製程中加入奈米級金屬粒子之局域性表面電漿效應擁有能夠直接提昇其電激發光強度的特性。
本研究即針對影響此效應增益發光強度之各項參數進行優化研究，在數值模擬上分別改變粒子尺寸、周圍介質、粒子間距等參數，討論其變化趨勢；在實作上進行金屬銀之薄膜生長，驗證模擬得到的趨勢。最後與現有之白光OLED 發光光譜進行比對，得到較佳的製程參數。
透過本研究的結論，將能有效降低使用局域性表面電漿效應增益有機發光二極體發光強度之研究成本以及時間，提昇OLED的市場化的速度。

摘要(英)

In this study, we use numerical simulation and experimental verification doing the investigation for optimizing parameters of enhanced lighting intensity of organic emitting diode by localized surface plasmon resonance.
OLED with the surface light source and flexibility is very suited for indoor illumination. However, the technology of OLED is falling behind LED because of late discovery. It is important to improve lighting intensity and decrease cost of OLED for market competition. LSPR is the way to directly improve the lighting intensity.
In numerical simulation, we adjust the sizes, surrounding material and spacing of nano-particle to discuss the tendency. In experiment, we verify the tendency by Ag nano-particle. At last, we gain the better parameter by coinciding with the emission spectrum of white OLED.
With the conclusion, we can reduce the time and cost of improving lighting intensity of OLED by LSPR.

關鍵字(中)

★ 有機發光二極體
★ 局域性表面電漿效應
★ 增益發光

關鍵字(英)

★ OLED
★ LSPR
★ Lighting Enhancement

論文目次

摘要 I
Abstract II
致謝 III
目錄 IV
圖目錄 VII
表目錄 XII
第一章　緒論 1
1-1 前言 1
1-2研究背景與動機 3
1-3文獻回顧 4
1-4研究目標 7
第二章　理論背景介紹 9
2-1 有機發光二極體 9
2-1-1 OLED 發展歷史 9
2-1-2 OLED 發光原理 12
2-1-3 OLED 技術分析 13
2-2局域性表面電漿子理論 18
2-2-1 電磁波在物質中傳播的特性[41] 19
2-2-2電磁波與金屬奈米粒子的交互作用[42] 20
2-2-3尺寸對局域性表面電漿吸收波長的影響 23
2-2-4周圍介質對局域性表面電漿吸收波長的影響 25
2-2-5粒子間交互作用對局域性表面電漿共振位置的影響 28
第三章　研究方法與實驗架構 29
3-1 研究方法 29
3-2數值模擬方法 31
3-2-1 有限元素法[53] 31
3-2-2 電磁波方程式[54] 34
3-2-3散射、吸收、消光截面 35
3-2-4 完美匹配層 36
3-2-5幾何結構 37
3-2-6材料參數 40
3-3樣品製作與實驗儀器介紹 43
3-3-1 樣品製作 44
3-3-2 原子力顯微鏡 44
3-3-3 吸收光譜儀 45
第四章　結果與討論 46
4-1 模擬結果 46
4-1-1單顆奈米粒子的尺寸效應 48
4-1-2 單顆奈米粒子的周圍介質效應 50
4-1-3多顆奈米粒子的間距效應(電場偏振垂直粒子) 56
4-1-4多顆奈米粒子的間距效應(電場偏振平行粒子) 62
4-1-5模擬結論 68
4-2 製程結果 68
4-2-1 2nm厚銀膜之金屬奈米粒子 69
4-2-2 5nm厚銀膜之金屬奈米粒子 72
4-2-3 10nm厚銀膜之金屬奈米粒子 75
4-2-4 製程結論 78
第五章　結論與未來展望 79
參考文獻 81

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指導教授

利定東

審核日期

2015-7-17

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