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http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/77257完整後設資料紀錄
| DC 欄位 | 值 | 語言 |
|---|---|---|
| dc.contributor.advisor | 汪根欉 | zh_TW |
| dc.contributor.advisor | Ken-Tsung Wong | en |
| dc.contributor.author | 洪懿慈 | zh_TW |
| dc.contributor.author | Yi-Tzu Hung | en |
| dc.date.accessioned | 2021-07-10T21:53:01Z | - |
| dc.date.available | 2024-08-19 | - |
| dc.date.copyright | 2019-08-26 | - |
| dc.date.issued | 2019 | - |
| dc.date.submitted | 2002-01-01 | - |
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| dc.identifier.uri | http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/77257 | - |
| dc.description.abstract | 有機光電元件相較於傳統的無機光電元件，具有低成本、製程難度較低、可撓性等優勢，受到學界及業界的高度重視。具有低單重態及三重態能階差的有機材料，因其具有使用100%激子的潛力，近年來成為第三代有機發光二極體 (OLEDs) 的主流。近年來，主要有兩種方法設計具此一性質的有機材料：熱激活化延遲螢光 (thermally activated delayed fluorescence, TADF) 及激發錯合體 (Exciplex)。兩種皆利用分離分子中最高佔據分子軌域 (HOMO) 與最低未佔分子軌域 (LUMO) 來降低單重態及三重態能階差。藉由適當的分子設計與合宜的元件材層，可使整體元件外部效率超過30%，因此成為近期OLED研究領域中的熱門題目。
在本論文中，主要設計與合成一系列以咔唑為核心的有機光電材料，並應用於第三代OLED (TADF OLEDs) 的發光層中作為主體或客體材料，相關的材料性質將一併在本文中分析與討論。各章節內容簡要如下：第一章介紹OLEDs之相關背景知識；第二章以先前發表的分子 (CzT) 做延伸，藉由置換電子予體 (donor) 或改變其拓樸結構，探討對TADF性質和元件表現的影響；第三章以9-苯基咔唑 (CzP) 為核心，藉由改變核心上donor數量與強度、或將donor接在CzP的1號位，又或是引入異核原子於兩核心間，藉此探究對分子特性與元件表現的影響。 | zh_TW |
| dc.description.abstract | Organic optoelectronic devices have attracted intense attention from researchers and companies all over the world for their low cost, ease of production, and mechanical flexibility compared to traditional inorganic optoelectronic devices. The molecules with small singlet and triplet energy gap (ΔEST) are the mainstream of current OLEDs development due to their potential of utilizing 100% excitons. Nowadays, there are two main routes to design small ΔEST organic materials, thermal activated delayed fluorescence (TADF) and exciplex. Both strategies are in an aim to separate distribution of HOMO and LUMO in order to further reduce ΔEST. The external quantum efficiency can be surpassed 30% by utilizing adequate molecules with proper device’s fabrication. Therefore, it has been attractive to both academia and industry.
In this thesis, a series of carbazole-based organic optoelectronic materials utilized in TADF OLEDs as either host or guest materials were designed, synthesized, and characterized. The essence of each chapters are briefly introduced as follows. 1st chapter provides an overview for OLEDs and 2nd chapter extends the previously published molecule (CzT) to investigate the effects on TADF properties and device performance through introducing different electron donors and then changing their topology. In chapter 3, we take 9-phenylcarbazole (CzP) as the core of HTMs. We investigate the effects on molecule properties and device performance by manipulating the strength of donors, connecting the donor to the 1st position of CzP, or introducing hetero-atoms between two CzPs. | en |
| dc.description.provenance | Made available in DSpace on 2021-07-10T21:53:01Z (GMT). No. of bitstreams: 1 ntu-108-D01223129-1.pdf: 15963686 bytes, checksum: f00be65a9cd382f7ebb1c972440af2b4 (MD5) Previous issue date: 2019 | en |
| dc.description.tableofcontents | 口試委員審定書 i
謝誌 ii 中文摘要 iv Abstract vi 目 錄 viii 圖 目 錄 xii 式 圖 目 錄 xix 表 目 錄 xxi 縮寫用語對照表 xxiii 第一章 緒論 1 1.1 引言 1 1.2 有機發光二極體元件結構與原理 3 1.3 電致發光反應機構與有機發光二極體的發展 7 1.4 熱激活化延遲螢光 (Thermally Activated Delayed Fluorescence, TADF) 11 1.5 激發錯合體有機發光二極體 (Exciplex OLED) 16 1.6 主客體發光系統與能量轉移機制 21 1.7 論文架構 25 第二章 CzT衍生物之分子設計、合成、性質分析與元件應用 26 前言 26 分子設計 29 2.1 置換電子予體 (electron donor) 對分子特性的影響 32 2.1.1 分子合成 32 2.1.2 性質研究 38 2.1.2.1 光物理性質 38 2.1.2.2 電化學性質 41 2.1.2.3 熱性質 44 2.2 改變拓璞 (topology) 結構對分子特性與元件表現的影響 47 2.2.1 分子合成 47 2.2.2 性質研究 49 2.2.2.1 光物理性質 49 2.2.2.2 電化學性質 54 2.2.2.3 熱性質 56 2.2.3 有機發光二極體元件應用 58 2.3 結論 67 第三章 以9-苯基咔唑 (CzP) 為核心之電子予體材料設計、合成、性質分析與活化複體有機發光二極體之應用 68 前言 68 分子設計 73 3.1 改變CzP核心上電子予體的數量與強度對分子特性和元件表現的影響 75 3.1.1 分子合成 75 3.1.2 性質研究 79 3.1.2.1 光物理性質 79 3.1.2.2 電化學性質分析 85 3.1.2.3 熱性質分析 87 3.1.3 有機發光二極體元件應用 89 3.2 改變CzP核心平面性探討對分子特性和元件表現的影響 95 3.2.1 分子合成 95 3.2.2 性質研究 97 3.2.2.1 光物理性質分析 97 3.2.2.2 電化學性質分析 100 3.2.2.3 熱性質分析 102 3.2.3 有機發光二極體元件應用 104 3.3 引入異核原子於兩個CzP核心間探究對分子特性和元件表現的影響 110 3.3.1 分子合成 110 3.3.2 性質研究 111 3.3.2.1 光物理性質分析 111 3.3.2.2 電化學性質分析 116 3.3.2.3 熱性質分析 118 3.3.3 有機發光二極體元件應用 119 3.4 結論 129 第四章 實驗部份 132 4.1 一般敘述 132 4.2 實驗步驟與數據 136 4.2.1 合成CzT衍生物 136 4.2.2 合成以CzP為核心之電子予體材料 154 4.3 X-ray單晶繞射數據 167 第五章 參考文獻 193 附錄一 化合物之1H、13C NMR光譜圖 207 附錄二 化合物之TGA、DSC溫度記錄圖 234 | - |
| dc.language.iso | zh_TW | - |
| dc.subject | 分子內電荷轉移 | zh_TW |
| dc.subject | 第三代有機發光二極體 | zh_TW |
| dc.subject | 分子間電荷轉移 | zh_TW |
| dc.subject | exciplex | en |
| dc.subject | carbazole | en |
| dc.subject | OLED | en |
| dc.subject | TADF | en |
| dc.title | 具分子內與分子間電荷轉移行為之材料的設計、合成、鑑定與其在有機發光二極體上之應用 | zh_TW |
| dc.title | Designs, Syntheses, Characterizations and Application of Intra- and Intermolecular Charge Transfer Materials for Organic Light Emitting Diodes | en |
| dc.type | Thesis | - |
| dc.date.schoolyear | 107-2 | - |
| dc.description.degree | 博士 | - |
| dc.contributor.oralexamcommittee | 梁文傑;黃炳綜;洪文誼;張志豪;陳志欣 | zh_TW |
| dc.contributor.oralexamcommittee | Man-kit Leung;Ping-Tsung Huang;Wen-Yi Hung;Chih-Hao Chang;Chih-Hsin Chen | en |
| dc.subject.keyword | 第三代有機發光二極體,分子內電荷轉移,分子間電荷轉移, | zh_TW |
| dc.subject.keyword | carbazole,OLED,exciplex,TADF, | en |
| dc.relation.page | 252 | - |
| dc.identifier.doi | 10.6342/NTU201901974 | - |
| dc.rights.note | 未授權 | - |
| dc.date.accepted | 2019-08-13 | - |
| dc.contributor.author-college | 理學院 | - |
| dc.contributor.author-dept | 化學系 | - |
| 顯示於系所單位： | 化學系 | |
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