電激發有機偏極子元件之研究

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姓名

許家福(Chia-Fu Hsu) 查詢紙本館藏

畢業系所

照明與顯示科技研究所

論文名稱

電激發有機偏極子元件之研究
(electrically pumped organic polariton device)

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摘要(中)

本論文主要為研究intra-cavity pumping機制的電激發有機偏極子元件。intra-cavity pumping共振腔架構的設計概念為結合有機強耦合高吸收材料與弱耦合發光OLED，先產生弱耦合OLED的電激發光，再激發出共振腔偏極子能態的發光。其中高吸收材料與OLED以一介電層隔絕，使電流只通過OLED部份，因此不受高吸收材料電性所影響。相較於一般直接以電激發高吸收材料產生偏極子能態放光，intra-cavity pumping架構可同時針對弱耦合OLED的發光效率與有機強耦合材料的吸收特性分別進行優化，在有機材料的選擇上更具彈性與選擇性，偏極子能態的發光效率也更高。
本論文電激發有機偏極子元件以DEDOC作為高吸收強耦合材料與DCJTB紅光OLED作為弱耦合發光源，在優化的元件製程條件之下可達到120 meV的拉比分裂及大於1 %的外部量子效率，為目前電激發有機偏極子元件最高的發光效率。此研究結果有助於未來發展高效率電激發強耦合元件和低閥值偏極子雷射。

摘要(英)

In this thesis, the electrically pumped organic polariton device by intra-cavity pumped was studied. The intra-cavity pumped microcavity consists of high absorption material and weak coupling OLED. In the intra-cavity pumped microcavity, a specific polariton mode is pumped by OLED emission and then emit light through the recombination process. In the microcavity, the high absorption layer and OLED are isolated by a dielectric layer such that the current only pass through the OLED.Thus Thus, the performance of the device would not be affected by the electrical property of the high absorption material. In comparison with the traditional structure, which directly pumps the high absorption material, the intra-cavity pumped device has multiple selectivities of organic material and high quantum efficiency because the emission efficiency of OLED and the high absorption material can be optimized respectively.
In this thesis, the electrically pumped organic polariton device was fabricated with DEDOC high absorption material and DCJTB red OLED pumping source with Rabi splitting of 120 meV and more than 1% EQE, which is the highest emission efficacy of electrically pumped organic polariton device. This research will promote the development of high efficiency electrically pumped organic polariton devices as well as low threshold polariton laser.

關鍵字(中)

★ 極化子
★ 微共振腔
★ 有機強耦合
★ 電激發
★ 光激分離

關鍵字(英)

★ polariton
★ microcavity
★ strong coupling
★ electrically pumping
★ intra-cavity pumping

論文目次

目錄
摘要 I
Abstract II
致謝 III
第一章緒論 1
1-1偏極子(polariton) 1
1-2偏極子雷射 2
1-3研究動機 6
第二章理論分析 8
2-1膜矩陣 8
2-1-1正向入射 8
2-1-2斜向入射 10
2-1-3 非相干性之反射與透射 12
2-2電場分布 12
2-2-1導納軌跡 13
2-2-2電場分布 15
2-3微共振腔中光場模態與色散 16
2-4微共振腔中激子與光子的強耦合 18
2-4-1強耦合與哈密頓量(Hamiltonian) 18
2-4-2哈密頓(Hamiltonian)矩陣 22
第三章實驗製程與步驟 27
3-1實驗製程 27
3-1-1雙電子槍蒸鍍系統 28
3-1-2 dip與旋轉塗佈(Spin)製程 29
3-1-3熱蒸鍍系統 30
3-1-4半導體參數分析儀及photodiode 32
3-1-5即時量測系統 33
3-1-6光譜儀系統 33
3-2實驗步驟 36
第四章結果與討論 40
4-1高吸收強耦合材料DEDOC 40
4-2 共振腔設計與光子源OLED 42
4-3 實驗結果與討論 47
4-3-1OLED光子源 47
4-3-2共振腔元件 48
第五章結論與未來展望 54
參考文獻 56

參考文獻

參考文獻
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指導教授

張瑞芬(Jui-Fen Chang)

審核日期

2017-1-13

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