博碩士論文 105232012 詳細資訊




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姓名 丘耀斌(Yao-Bin Chiu)  查詢紙本館藏   畢業系所 照明與顯示科技研究所
論文名稱 聚合物共混層發光二極體應用於電激發偏極子元件之研究
(Polymer-blend based electrically pumped polariton device)
相關論文
★ 螢光材料應用於電激發有機偏極子元件之研究
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摘要(中) 本論文主要研究PFO:F8BT based OLED作為光子源應用於電激發偏極子元件。首先我們優化OLED的電子注入端進而提升外部量子效率(EQE)近2%作為光子源與提供激子的高吸收染料分子DEDOC強耦合產生偏極子,接著以intra-cavity pumping的共振腔架構設計偏極子元件,其機制為激發強耦合能態,而光子源與吸收層之間以絕緣層隔絕限制電流只通過OLED,在此架構下可替換不同波長之光子源並適當調整腔長優化偏極子元件的效率。
實驗結果證明,當F8BT的放光接近激子能態,於EL光譜中同時觀察到不同偏極子的放光。此研究有助於理解強耦合的物理並發展低閥值雷射。
摘要(英) In this thesis, the PFO:F8BT based OLED was applied to electrically pumped organic polariton device as optical pumping source.We optimized the electron injection to increace external quantum efficiency(EQE) of OLED by nearly 2% as a pumping source and strongly couple the highly absorption dye.The polariton device is designed with the intra-cavity pumping. The mechanism is to excite the strong coupling energy state.We Use insulation separate OLED and active layer,leading to the current only flow past OLED.Under this architecture,it is possible to replace pumping sources of different wavelengths and adjust the cavity length to optimize the current density and EQE of the polariton device.
The result shows that when the emission of F8BT is nearly to the exciton reservior,the emission of exciting the upper branch and the lower branch can be observed .This research result will promote to understand physical mechanism of polariton and advance low threshold polariton laser.
關鍵字(中) ★ 聚合物共混層
★ 偏極子元件
關鍵字(英) ★ Polymer-blend based
★ polariton device
論文目次 摘要 I
Abstract II
誌謝 III
目錄 IV
圖目錄 VII
表目錄 XI
第一章 緒論 1
1-1 聚合物共混發光二極體 1
1-2 偏極子(Polariton) 3
1-3 偏極子雷射 4
1-3-1 Lidzey組 - Non-resonant pumping 與 Bottleneck 4
1-3-2 Bulovic組 - Intracavity pumping 7
1-4 研究動機 9
第二章 理論分析 11
2-1 有機發光二極體理論 11
2-1-1 有機發光二極體結構 11
2-1-2 載子注入 12
2-1-3 主體(Host)與客體(Guest)間的能量轉移(Host-guest energy transfer) 15
2-1-4 量子效率(Quantum Efficiency) 17
2-2 多層膜矩陣設計理論 18
2-2-1 正向入射 18
2-2-2 斜向入射 19
2-2-3 非相干性之反射與透射 20
2-3 電場分布 22
2-3-1 導納軌跡 22
2-3-2 電場分布 24
2-4 微共振腔之光場模態與色散關係 25
2-5 微共振腔中光子與激子的強耦合 27
2-5-1 強耦合與哈密頓算符(Hamiltonian) 27
2-5-2 哈密頓算符(Hamiltonian)矩陣與偏極子能態 31
第三章 實驗製程與步驟 34
3-1 製程儀器 35
3-1-1 旋轉塗佈(Spin coating)與dip 製程 35
3-1-2 熱蒸鍍系統(Thermal coater) 36
3-2 量測儀器 37
3-2-1 半導體參數分析儀(Semiconductor Parameter Analyzer, SPA)與Photodiode 37
3-2-2 即時多角度量測系統 38
3-3-3 光譜儀系統 39
3-3 實驗步驟 42
3-4 材料明細 45
第四章 實驗結果與討論 47
4-1 J-aggregate高吸收強耦合材料DEDOC 47
4-2 Polymer-blend based光子源效率優化與微共振腔設計 48
4-2-1 正向結構(Conventional structure) 49
4-2-2 倒置結構(Inverted structure) 51
4-2-3 偏極子元件設計 57
4-3 偏極子元件量測結果與討論 60
第五章 結論與未來展望 65
參考文獻 67
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指導教授 張瑞芬 簡汎清(Jui-Fen Chang Fan-Ching Chien) 審核日期 2019-1-24
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