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研究生:林家興
研究生(外文):JiaXing Lin
論文名稱:Poly(CarbazoleVinylenePhenyleneVinylene)材料之製備與發光特性研究
論文名稱(外文):A Study on Synthesis and Luminescence Characteristics of Poly(Carbazole Vinylene Phenylene Vinylene)
指導教授:黃華宗
指導教授(外文):WhaTzong Whang
學位類別:碩士
校院名稱:國立交通大學
系所名稱:材料科學與工程系
學門:工程學門
學類:材料工程學類
論文種類:學術論文
論文出版年:1999
畢業學年度:87
語文別:中文
論文頁數:73
中文關鍵詞:發光二極體卡胙共軛高分子電荷傳導電激發光
外文關鍵詞:Light Emitting DiodeCarbazoleConjugating PolymerCharge Carrier TransportElectroluminescence
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本研究利用Witting reaction將carbazole與phenylene vinylene單體串接成高分子,而得PCVPV-p與PCVPV-m兩種共軛高分子發光材料,預期材料之carbazole vinylene phenylene vinylene結構使其具有電洞傳導功能。PCVPV-p在430°C時有5%的熱重損失,Tg點244°C;PCVPV-m在460°C時有5%的熱重損失,Tg點208°C,兩種copolymer材料均可溶於chloroform中,並可以旋轉塗佈法製成薄膜。PL光譜顯示PCVPV-p之發光波長在450nm;PCVPV-p之發光波長則在435nm,PCVPV-p因其phenylene vinylene之meta配位使其發光波長呈現blue shift。另一方面,Al / copolymer / ITO元件之電壓-電流關係曲線亦顯示二極體之特性。此外,copolymer分別摻雜不同比例之電子傳導分子Alq及PBD所製成之元件,則可以測量到加寬且有red shift之EL發光光譜。

Poly(N-ethylcarbazole vinylene-1,4-phenylene vinylene) (PCVPV-p) and poly(N-ethylcarbazole vinylene-1,3-phenylene vinylene) (PCVPV-m) were synthesized by a Witting reaction from the carbazole and phenylene vinylene monomer. The two copolymers showed good thermal stability and had decomposition temperatures (at 5% weight loss) of 430°C and 460°C, and glass transition temperatures of 244°C and 208°C, respectively. The photoluminescence (PL) spectra showed the two copolymers had emission peaks on 450nm (PCVPV-p) and 435nm (PCVPV-m), therefore PCVPV-m showed a blue-shift comparing to PCVPV-p. The Al / copolymer / ITO devices also showed good diode characteristics in their I-V curves. Besides, the LED devices of the copolymers, doped with some certain percentages of Alq and PBD, showed broad and red-shifted electroluminescence (EL) spectra.

壹、 緒論
1-1. 發光二極體材料簡介 ---------------------------------------------- 2
1-2. 有機材料於發光元件上的發展 --------------------------------- 4
1-3. 本實驗研究方向 ---------------------------------------------------- 6
貳、 原理
2-1. 有機發光二極體的結構 ------------------------------------------ 7
2-1-1. 單層結構 -------------------------------------------------------- 7
2-1-2. 多層結構 -------------------------------------------------------- 8
2-1-3. 一般常見電極 ------------------------------------------------- 9
2-2. 發光原理 ------------------------------------------------------------ 10
2-2-1. 光激發光 ------------------------------------------------------- 10
2-2-1. 電激發光 ------------------------------------------------------- 11
參、 藥品及儀器設備
3-1. 藥品 ------------------------------------------------------------- 12
3-2. 儀器 ------------------------------------------------------------- 14
肆、 實驗
4-1. ITO玻璃的清洗 --------------------------------------------------- 15
4-2. 3,6-Diformyl-N-ethylcarbazole之合成 ------------------------- 16
4-3. m-Xylylenebis(triphenylphosphonium chloride) 之合成------- 16
4-4. Poly(N-ethylcarbazole vinylene-1,4-phenylene vinylene)之合成-----
------------------------------------------------------------------------------ 17
4-5. Poly(N-ethylcarbazole vinylene-1,3-phenylene vinylene)之合成----
------------------------------------------------------------------------------- 17
4-6. 以旋轉塗佈法製備copolymer薄膜 ------------------------------- 18
4-7. 蒸鍍鋁電極 ------------------------------------------------------------- 18
4-8. 膜厚的測量 -------------------------------------------------------------- 19
4-9. 螢光光譜測量 ----------------------------------------------------------- 19
4-10. 電激發光譜測量 -------------------------------------------------------- 19
4-11. 電流對電壓關係曲線圖之測量 ------------------------------------- 19
伍、結果與討論
5-1. 材料之光譜鑑定 ------------------------------------------------------ 20
5-1-1. 3,6-Diformyl-N-ethylcarbazole之光譜鑑定 ----------------- 21
5-1-2. m-Xylylenebis(triphenylphosphonium chloride) 之光譜鑑定------
----------------------------------------------------------------------------- 22
5-1-3. Copolymer之光譜鑑定 --------------------------------------------- 22
5-2. Copolymer之物理特性 ------------------------------------------------ 22
5-3. Copolymer吸收激發光譜鑑定 --------------------------------------- 24
5-3-1. UV-Vis吸收光譜 ----------------------------------------------------- 24
5-3-2. PL光激發光譜 -------------------------------------------------------- 24
5-4. Al / Copolymer / ITO 元件之光電特性 ----------------------------- 25
5-4-1. Al / Copolymer / ITO 元件之電特性 ------------------------------26
5-4-2. Al / Copolymer / ITO 元件之發光特性 -------------------------- 26
陸、結論 ------------------------------------------------------------------------------- 27
柒、參考資料 ------------------------------------------------------------------------- 29

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