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| 研究生： |
呂俊葟 Chun-Huang Lu |
|---|---|
| 論文名稱： |
以嘧啶為主體之二極化發光材料 Pyrimidine-based bipolar light-emitting materials |
| 指導教授： |
林建村
J. T. Lin |
| 口試委員: | |
| 學位類別： |
碩士 Master |
| 系所名稱： |
理學院 - 化學學系 Department of Chemistry |
| 畢業學年度： | 91 |
| 語文別： | 中文 |
| 論文頁數： | 127 |
| 中文關鍵詞： | 有機電激發光二極體 |
| 外文關鍵詞： | organic light emitting diode |
| 相關次數： | 點閱：12 下載：0 |
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本實驗主要是以Sonogashira reaction及C-N鍵之偶合反應，引入不同之推拉電子基，合成出一系列以pyrimidine為主體之二極化發光材料。所有化合物並經由氫光譜、值譜儀和元素分析加以鑑定其結構與純度。熱性質方面，由熱重分析儀( TGA )得知其裂解溫度( Td )為306～381℃，由示差掃描熱分析儀( DSC )測得化合物pf1、pf2、pf3、pk1具玻璃轉化溫度( Tg )，範圍介於69～87℃。化合物的光學性質則由紫外光-可見光光譜儀( UV-Vis )和螢光光譜儀測得，化合物在二氯甲烷溶劑中所得之最大吸收波長範圍為355～373 nm；最大螢光放射波長為467~522 nm，放光顏色除了化合物pc1為黃綠色之外，其餘皆為藍色，這一系列化合物並具有不錯之量子產率( quantum yield )。經由循環伏安法( CV )量測，可得知HOMO與LUMO之能階，範圍分別介於5.55～5.62 eV與2.58～2.75 eV。本論文並針對不同推拉電子基對於熱性質、吸收波長、放射波長與氧化還原電位之影響作詳盡之探討。
A series of novel bipolar light emitting materials containing pyrimidine core and different donor-acceptor groups were synthesized successfully via Sonogashira reaction and palladium catalyzed C-N coupling reaction. All the compounds were characterized by H1-NMR、Mass and Elemental Analysis. The thermal properties of these materials were investigated by TGA and DSC . The decomposition temperatures ( Td ) of the compounds range from 306 to 381℃. Compound pf1、pf2、pf3 and pk1 are amorphous with glass transition temperature ( Tg ), rangeing from 69 to 87℃. The optical properties of these materials were studied by UV/Vis and PL spectroscopic methods. All of these compounds exhibit the maxaimum absorption in the range of 355～373 nm in dichloromathane. The compound pc1 emits greenish-yellow, all others emit in blue region. The maxium fluorescence wavelength lies within 467~522 nm in dichloromethane. Compounds are fluorescent with good quantum yield. HOMO and LUMO energies derived from cyclic voltametry ( CV ) data are in the range of 5.55～5.62 eV and 2.58～2.75 eV, respectively.
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