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研究生: 陳鎧
Chen Kai
論文名稱: 導電共軛高分子摻雜三重態激發子之能量傳輸研究
The study of Energy transfer process in conjugated polymer doped with triplet emitter
指導教授: 洪勝富
Horng Sheng-Fu
孟心飛
Meng Hsin-Fei
口試委員:
學位類別: 碩士
Master
系所名稱: 電機資訊學院 - 電子工程研究所
Institute of Electronics Engineering
論文出版年: 2005
畢業學年度: 93
語文別: 中文
論文頁數: 54
中文關鍵詞: 共軛高分子三重態激發子能量傳輸
外文關鍵詞: conjugated polymer, triplet emitter, Energy transfer
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  • 本論文研究摻雜BtpIr磷光激發子的PFO共軛高分子薄膜在光激發時的能量傳輸。實驗中比較不同摻雜濃度的高分子薄膜的光激發光( Photo luminance )光譜以及光注入激發吸收( photo-induced absorption PA )來觀察PFO的單重態激子以及三重態激子在(Btp)2Ir摻雜後的改變。由摻雜之後單重態激子被淬熄以及三重態激子的生命期縮短,發現Forster能量傳輸以及Dexter能量傳輸均有發生。然而隨摻雜濃度的增加(Btp)2Ir並無法完全淬熄PFO中的激子,這可能是由於(Btp)2Ir無法均勻分布於PFO薄膜所導致。


    This thesis studies on energy transfer process in conjugated polymer PFO doped with phosphorescent emitter (Btp)2Ir. By comparing photo-luminance (PL) spectrum and photo-induced absorption (PA) signal of polymer films with various doping concentration, we investigate the change in the population ratios and life time of singlet and triplet exciton of PFO. From the quenching of singlet exciton of PFO and reduced life time of triplet exciton of PFO, it concluded that both Forster energy transfer and Dexter energy transfer happen. However, high doping concentration cannot quench exciton of PFO completely and it may be due to the fact that (Btp)2Ir cannot disperse uniformly in PFO film.

    第一章 序論--------------------------------------------------------------------------------1 第二章 實驗理論--------------------------------------------------------------------------4 2-1 共軛高分子材料特性------------------------------------------------------4 2-2 有機分子內的激發態與去激發過程------------------------------------5 2-3 量測原理---------------------------------------------------------------------8 2-4 能量傳輸(Energy transfer)機制------------------------------------------13 第三章 實驗方法--------------------------------------------------------------------------16 3-1 材料特性-------------------------------------------------------------------- 17 3-2 電激發光量測-------------------------------------------------------------- 19 3-3 光激發光量測PA量測--------------------------------------------------- 23 3-4 光激發吸收PA量測------------------------------------------------------ 25 第四章 實驗結果------------------------------------------------------------------------- 28 4-1電激發光量測結果-------------------------------------------------------- 28 4-2 PFO摻雜不同BtpIr濃度樣品之PL光譜量測結果---------------- 30 4-3 PMMA摻雜BtpIr樣品之PL光譜量測結果------------------------ 35 4-4改變溫度樣品之PL光譜量測結果------------------------------------ 38 4-5 PA量測結果---------------------------------------------------------------- 42 4-6光激發狀況下的主要能量傳輸機制----------------------------------- 47 第五章 總結------------------------------------------------------------------------------- 51 參考文獻------------------------------------------------------------------------------------53

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