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完整後設資料紀錄
DC 欄位 | 值 | 語言 |
---|---|---|
dc.contributor.advisor | 梁文傑(Man-kit Leung) | |
dc.contributor.author | Liang-Ju Hou | en |
dc.contributor.author | 侯良儒 | zh_TW |
dc.date.accessioned | 2021-06-17T02:36:52Z | - |
dc.date.available | 2022-08-25 | |
dc.date.copyright | 2017-08-25 | |
dc.date.issued | 2017 | |
dc.date.submitted | 2017-08-16 | |
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dc.identifier.uri | http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/68817 | - |
dc.description.abstract | 本篇論文合成了一些以 9,10 號碳蒽取代之衍生物,分別以苯並咪唑與噁二唑進行單邊取代,另以苯並咪唑進行雙邊取代,最後在一個分子上修飾兩個蒽取代基,藉由這些設計試著去提高分子的電子移動速率與提高TTA-UC 的效率,以利我們的分子應用在螢光發光材料上。
透過電化學測試與光物理測試,得知我們所合成之化合物,能階差約在 2.8eV 到3.0 eV,螢光放光在藍光範圍(~430 nm),在熱穩定性分析裡,大多數的化合物都符合蒸鍍過程的熱穩定條件,我們也做了溶液中的TTA-UC 測試,以綠光成功激發出藍光,並與光物理分析的光譜圖互相呼應。 在元件表現的部分,我們將所得之化合物,摻混入PVK 中以旋轉塗佈的方式製作有機發光二極體元件,跟市售TTA-UC 材料DPA 比較,我們的化合物在修飾上拉電子基團後,能具有更良好的電子傳輸特性,在以化合物2 為發光材料的簡易雙層元件中,最高亮度為319 cd/m2,最大電流效率為0.40 cd/A。另也將化合物2、3、6 以蒸鍍法製作元件,在元件架構尚未最佳化前,測試結果最大亮度可達3869 cd/m2,最大電流效率為1.69 cd/A,最大外部量子效率為0.63%,在暫態螢光測試裡,化合物2、3 比市售材料ADN 有更好的延遲螢光表現,足以證明其在OLED 的應用潛力。 | zh_TW |
dc.description.abstract | We have synthesized a family of anthracene derivatives with substitutions on the C-9 and C-10 positions. Anthracene derivatives could be activated by less energy and produced a higher S1 excited state. Therefore, we could get the higher frequency emission than we excite them directly. This phenomenon is also called triplet-triplet annihilation photon upconversion (TTA-UC). We utilize substitutions on anthracene in order to tune more appropriate energy level match between our light emitter layer (EML) and electron/hole transporting layers (ETL/HTL). By introducing these substituted groups, it can be facilitated the electron/hole-transporting ability of anthracene. Meanwhile, the higher molecular weight, the better thermal stabilities.
We used cyclic voltammetry to characterize our target compound, their energy gap are between 2.8 eV to 3.0 eV approximately. From fluorescence and phosphorescence spectra, most of them could emit blue light by the TTA-UC process. We also make some PLED devices to analyze their photoelectric properties. Our compounds have higher electron mobility than DPA and possess great current efficiency. From OLED devices which are composed by vapor deposition, we could get the highest current efficiency of 1.69 cd/A at 6 V, the highest power efficiency of 0.92 lm/W at 5.5 V, the highest luminance of 3869 cd/m2 at 10 V, the largest EQE of 0.63% at 6 V. According to these outcome, we can make a conclusion that our compound have excellent potential to be the light emitting materials compared to DPA and ADN. | en |
dc.description.provenance | Made available in DSpace on 2021-06-17T02:36:52Z (GMT). No. of bitstreams: 1 ntu-106-R04223154-1.pdf: 7456404 bytes, checksum: 9fc22904872ef752ec8bf55f3ba8e778 (MD5) Previous issue date: 2017 | en |
dc.description.tableofcontents | 摘要 IV
ABSTRACT V 圖目錄 VI 表目錄 VIII 流程目錄 IX 化合物之1H NMR與13C NMR光譜目錄 X 化合物結構式與編號 XI 第一章 緒論 1 1.1 前言 1 1.2 有機發光二極體歷史沿革 2 1.3 有機分子發光原理 3 1.4 有機發光二極體元件工作機制 5 1.5 螢光、磷光發光的優缺點 6 1.6 三重態-三重態湮滅光子上轉換 7 1.7 有機發光二極體各層材料 10 1.7.1 陽極材料 10 1.7.2 陰極材料 10 1.7.3 電洞注入材料 10 1.7.4 電洞傳輸材料 11 1.7.5 電子注入材料 13 1.7.6 電子傳輸材料 13 1.7.7 發光層材料 14 第二章 研究動機與分子合成 16 2.1 研究動機 16 2.2 文獻回顧 17 2.3 分子設計 23 2.4 合成流程與方法 24 2.4.1 產物2之合成 24 2.4.2 產物3之合成 26 2.4.3 產物4、5之合成 27 2.4.4 產物6之合成 29 2.4.5 產物1之合成 30 第三章 結果與討論 33 3.1 熱性質分析 33 3.2 光學分析 36 3.2.1 光物理分析 36 3.2.2 TTA-UC現象展示 42 3.3 電化學分析 44 3.4 X-RAY晶體結構分析 50 3.5 有機電激發光元件表現 55 3.5.1 製成PLED元件與參考品DPA比較 55 3.5.2 小分子蒸鍍之OLED元件工作效率表現 61 第四章 結論 68 第五章 實驗部分 69 5.1 實驗儀器與試劑 69 5.1.1 儀器部分 69 5.1.2 試劑與溶劑 70 5.2 合成步驟 71 第六章 參考文獻 83 第七章 附錄 87 7.1 化合物之1H NMR與13C NMR光譜 87 7.2 化合物1-6之TGA與DSC圖譜 109 7.3 化合物之X-RAY晶體結構圖與參數表 111 | |
dc.language.iso | zh-TW | |
dc.title | "9,10-蒽衍生物之合成、性質探討與其在藍色有機發光二極體材料之應用" | zh_TW |
dc.title | Synthesis and Characterization of Substituted 9,10-anthracene and The Applications in Blue Fluorescent Organic Light Emitting Diodes | en |
dc.type | Thesis | |
dc.date.schoolyear | 105-2 | |
dc.description.degree | 碩士 | |
dc.contributor.oralexamcommittee | 邱天隆(Tien-Lung Chiu) | |
dc.subject.keyword | 藍色螢光有機發光二極體,三重態-三重態湮滅光子上轉換,?,苯並咪唑,噁二唑, | zh_TW |
dc.subject.keyword | blue fluorescent OLED,TTA-UC,anthracene,benzimidazole,oxadiazole, | en |
dc.relation.page | 159 | |
dc.identifier.doi | 10.6342/NTU201703731 | |
dc.rights.note | 有償授權 | |
dc.date.accepted | 2017-08-17 | |
dc.contributor.author-college | 理學院 | zh_TW |
dc.contributor.author-dept | 化學研究所 | zh_TW |
顯示於系所單位: | 化學系 |
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