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研究生： 王文揚
Wen-Yang Wang
論文名稱： Dipyrazolopyridine系列螢光材料之合成、性質與電激發光元件應用研究
Synthesis, Properties and Electroluminescent Device Application of Fluorescent Materials Based on Substituted Dipyrazolopyridines
指導教授： 陶雨台
Yu-Tai Tao
口試委員:
學位類別： 碩士
Master
系所名稱： 理學院 - 化學系
Department of Chemistry
論文出版年： 2005
畢業學年度： 93
語文別： 中文
論文頁數： 129
中文關鍵詞： 有機電激發光 、二極體 、元件
外文關鍵詞： OLED, dipyrazolopyridine
相關次數： 點閱：2  下載：0 
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    • 本實驗在dipyrazolopyridine的3號及5號碳上以苯基或4-氟苯基取代，並以含有不同芳香基的三芳胺基結構連接在此dipyrazolopyridine主體上，合成出一系列嶄新的PAP類發光材料。在以carbazolyl及N-phenyl-1-naphthylamino基團為三芳胺的取代基時，具有不錯的玻璃轉換溫度，而3, 5位置的苯基或4-氟苯基取代基則造成其放光顏色的紅位移。
    將此一系列材料做為發光層製作成三層元件，以NPB為電洞傳輸層，Alq或TPBI為電子傳輸層，元件結構為ITO / NPB（40 nm） / PAP（10 nm） / Alq or TPBI（40 nm） / LiF（1 nm） / Al（150 nm），可以得到一系列高亮度及發光效率佳的藍光或藍綠光元件。
    由於三芳胺結構具有傳輸電洞的性質，故也製作一系列雙層元件，以PAP衍生物為電洞傳輸層兼發光層，Alq或TPBI為電子傳輸層，元件結構為ITO / PAP（40 nm） / Alq or TPBI（40 nm） / LiF（1 nm） / Al（150 nm），在以不同材料做為電子傳輸層的情況下，會得到不同EL光譜的結果：以Alq為電子傳輸層元件得到了以Alq為主的放光，而在以TPBI為電子傳輸層時，得到以PAP類發光材料為主的放光。此一系列元件也有高亮度及發光效率佳的優點。

    In this work, a new series of organic light-emitting materials, derived from dipyrazolopyridine, have been synthesized. The framework of this materials is based on two parts, a dipyrazolopyridine(PAP) unit connected with a triarylamine moiety. The 3, 5 positions of PAP snbstituted with a phenyl or a 4-fluorophenyl group. For the arylamine part, three different substituents, N-phenyl-1-naphthylamino, carbazolyl and dipheylamino groups were used to form the triarylamine moiety. The enhancement of glass transition temperature has been observed on the carbazolyl and N-phenyl-1-naphthylamino group substituted derivatives. The phenyl or 4-fluorophenyl substituents at 3,5 position caused a red shift in the PL spectra.
    Three-layer devices have been fabricated by using NPB as hole-transporting layer, Alq or TPBI as electron-transporting layer and PAP dyes as light-emitting layer. The structure of device is ITO / NPB(40 nm) / PAP dyes(10 nm) / Alq or TPBI(40 nm) / LiF(1 nm) / Al(150 nm). A series of blue or greenish-blue devices were obtained with high brightness and efficiency.
    Based on the hole-transporting character of triarylamine, two-layer devices were fabricated by using PAP dyes as hole-electron transporting and light-emitting layer, Alq or TPBI as electron-transporting. With a device configuration of ITO / PAP dyes(40 nm) / Alq or TPBI(40 nm) / LiF(1 nm) / Al(150 nm). The results showed that when Alq was used as electron-transporting material, the recombination region located at the PAP dyes/Alq interface; on the other hand, holes and electrons recombined inside the PAP dyes layer when TPBI was the electron-transporting layer.

    摘要…………………………………………………………………………....I Abstract…………………………………………………………………….II 總目錄…………………………………………………………………….III 圖目錄……………………………………………………………………..V 表目錄………………………………………………………………........VII 附圖目錄………………………………………………………………..VIII 壹、序論 1 1-1 前言 1 1-2 元件發光原理及基本結構 3 1-3 元件材料 6 1-3-1 陽極（anode） 6 1-3-2 電洞注入材料（Hole Injection Materials） 6 1-3-3 電洞傳輸材料（Hole Transport Materials） 7 1-3-4 電子傳輸材料（Electron Transport Materials） 9 1-3-5 發光材料（Emitting Materials） 10 1-4 全彩化技術 14 貳、研究動機 16 參、實驗部份 17 3-1 藥品與儀器 17 3-1-1 藥品 17 3-1-2 儀器 18 3-2 合成步驟 19 3-3 UV-Vis吸收與液態螢光測量 46 3-4固態螢光與HOMO測量 46 3-5 DSC測量 46 3-6 TGA測量 47 3-7 CV測量 47 3-8 元件的製作與測量 48 肆、結果與討論 49 4-1 發光材料的合成 49 4-2 DSC及TGA之測量 53 4-3 UV-Vis吸收、螢光光譜及相對量子產率之測量 54 4-4 電化學性質測量 59 4-5 元件的製作與測量 62 4-5-1 三層元件 62 4-5-2 雙層元件 68 伍、結論 75 陸、參考資料 77

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