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研究生:蔡尚穎
論文名稱:二苯基亞磷酸酯之熱反應及其在有機發光二極體上之應用
指導教授:黃國柱黃國柱引用關係
學位類別:碩士
校院名稱:國立清華大學
系所名稱:化學系
學門:自然科學學門
學類:化學學類
論文種類:學術論文
論文出版年:2002
畢業學年度:90
語文別:中文
論文頁數:130
中文關鍵詞:二苯基亞磷酸鹽二苯基亞磷酸鹽之熱反應有機發光二極體
外文關鍵詞:dibenzyl phosphitephosphonic acid dibenzyl ester
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摘要
本研究的主要目的是分析二苯基亞磷酸酯之熱反應機制及其產物結構,並將其具高PL(photo luminescence)量子效率(53%)之產物應用在有機發光二極體上,因此本論文將分成兩部分加以探討,第一部份為二苯基亞磷酸酯熱反應後產物結構的鑑定,以推敲其反應機制,並以其它合成方法製備產物以驗證所推敲之結構,又此未知化合物具有很強的固態螢光且放射光波長約為450nm,因此欲將其應用在有機發光二極體做為發光材料,研究其光電性質,包含UV-VIS吸收光譜、液態及固態螢光光譜、熱分析性質、電化學氧化-還原電位、相對量子產率、及放光生命期等之研究與測試,並以所測試的相關性質結果做為參考,以進行元件的製作。根據推測此結構為聚合物無法昇華,因此選擇以旋轉塗佈的方式來製備元件,又其本身分子量太小(約2000~7000 daltons),致使spin coating後薄膜(~1000Ả)成膜性不佳,而無法順利的量測到製作為元件後之電激發光譜圖,因此第二部份則為此高量子效率寡聚物(degree of polymerization, DP<30)的改質,我們將其與PVK(poly-vinylcarbazole)摻混,另與poly(styrene)、carbazole及N-vinylcarbazole接枝或共聚合增加其分子量以改善成膜性,以利於PLED元件製作。

目錄
摘要................................................ I
表目錄.............................................. II
圖目錄.............................................. IV
第一章 绪論
1-1 前言.......................................... 1
1-2 螢光理論 ..................................... 3
1-3 有機發光二極體之發展.......................... 7
1-3-1 有機發光二極體的發光原理.................. 11
1-3-2 發光二極體電極............................ 15
1-3-3 雙層結構發光二極體........................ 19
1-3-4 摻雜體發光二極體.......................... 23
1-4 有機發光二極體光色之研究...................... 24
1-4-1各種光色之高分子........................... 24
1-4-2摻合體發光二極體........................... 29
1-5 發光二極體破壞機構之研究...................... 33
1-6 本文目的...................................... 38
第二章 實驗
2-1 實驗藥品與儀器...................................... 39
2-2 產物之製備與純化.................................... 44
2-3 元件製作............................................ 46
第三章 結果與討論
3-1 dibenzylphosphite之熱反應產物分析............... 50
3-1-1初步分離及鑑定............................. 50
3-1-2以不同能量方式反應......................... 54
3-2 結果分析....................................... 56
3-2-1第一部份產生大量benzyl radical................ 60
3-2-2第二部份結構推測........................... 63 3-3 主要產物PX的物理性質............................. 73
3-4 元件製作結果..................................... 84
第四章 PX聚合物的改質
4-1 改變反應條件...................................... 89
4-2 與styrene接枝共聚合............................... 91
4-3 C-C coupling rxn. ............................... 94
第五章 總結與未來展望...................................... 96
第六章 附圖............................................... 99
第七章 參考資料........................................... 119

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