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研究生： 王鈺程
Wang, Yu-Cheng
論文名稱： 用於圓偏振高分子發光二極體的掌性添加物和非掌性共軛高分子聚合物的混合材料
Mixture of chiral additives and achiral conjugated polymers for circularly polarized polymer light-emitting diodes
指導教授： 趙宇強
Chao, Yu-Chiang
口試委員： 駱芳鈺
Lo, Fang-Yuh
許經夌
Hsu, Ching-Ling
趙宇強
Chao, Yu-Chiang
口試日期： 2023/06/26
學位類別： 碩士
Master
系所名稱： 物理學系
Department of Physics
論文出版年： 2023
畢業學年度： 111
語文別： 中文
論文頁數： 56
中文關鍵詞： 掌性添加物 、激子耦合 、圓偏振螢光 、圓二色性 、β相的PFO
英文關鍵詞： chiral additives, Circularly Polarized Luminescence, Circular dichroism, excitonic coupling, β-phase of PFO
DOI URL： http://doi.org/10.6345/NTNU202300900
論文種類： 學術論文
相關次數： 點閱：78  下載：9 
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    • 本篇是研究用於圓偏振高分子發光二極體的掌性添加物和非掌性共軛高分子聚合物的混合材料的特性
    本篇所使用的材料為PFO(Poly(9,9-dioctylfluorenyl-2,7-diyl))，去搭配R/S-811((R)/(S)-Octan-2-yl 4-((4-(hexyloxy)benzoyl)oxy)benzoate)來看其光學特性。
    本研究發現隨著摻雜比例的提升，其CD(circular dichroism)光譜跟CPL(circularly polarized luminescence)光譜的特性也會升高，而且其效率很高(GLUM=0.03)，並且發現可以藉由R/S-811搭配退火作業能引導出β相的PFO，由於β相的PFO比起晶格相的PFO有不少好處，因此能引導出β相的PFO這點對於未來要做成元件具有很大。

    This study investigates the characteristics of mixtures of chiral additives and non-chiral conjugated polymer materials for circularly polarized polymer light-emitting diodes (CP-PLEDs). The material used in this study is PFO (Poly(9,9-dioctylfluorenyl-2,7-diyl)) in combination with R/S-811 ((R)/(S)-Octan-2-yl 4-((4-(hexyloxy)benzoyl)oxy)benzoate) to examine their optical properties.
    The study found that with increasing doping ratio, the CD (circular dichroism)spectra and CPL(circularly polarized luminescence) spectra of the materials also increase. Moreover, the efficiency is high (GLUM=0.03). It was also found that annealing with R/S-811 can induce the formation of the β-phase of PFO. The β-phase of PFO has many advantages over the crystalline phase, making it promising for future device applications.

    致謝 ................................................................................... i 摘要 .................................................................................. ii Abstract .......................................................................... iii 目次 .................................................................................. iv 圖目錄 ............................................................................ viii 公式目錄 .......................................................................... xi 第一章 緒論 .................................................................. 1 1-1 前言 .................................................................................................... 1 1-2 研究動機 ............................................................................................ 4 第二章 材料簡介與原理 .............................................. 5 第一節 發光原理 ...................................................................................... 5 2.1-1光致發螢光 ................................................................................ 5 2.1-2偏振光 ........................................................................................ 6 2.1-3圓偏振光：來自分子和聚集體 ................................................. 8 2.1-4圓二色性(Circular dichroism,CD) .............................................. 11 2.1-5圓偏振螢光(Circularly polarized luminescence,CPL) ................ 13 第二節 有機圓偏振光 ............................................................................ 15 2.2-1 共軛聚合物中的掌性側鏈 ...................................................... 15 第三節小分子摻雜 .................................................................................. 19 2.3-1 手性非發光化合物摻雜 .......................................................... 19 第三章 實驗儀器與步驟 ............................................ 22 3.1實驗儀器 ........................................................................................... 22 3.2 手性摻雜化合物製成方式 ............................................................... 28 3.2.1PFO溶液準備: ........................................................................... 28 3.2.2R/S-811溶液準備: ..................................................................... 29 3.2.3混合溶液製備: .......................................................................... 29 3.2.4PFO與R/S-811以及R/S-BINAP混合比例試片製備: ............... 29 3.3 實驗原料介紹 ................................................................................... 31 3.3.1 PFO ............................................................................................ 31 3.3.2 R/S-811...................................................................................... 33 第四章 實驗結果與討論 ............................................ 35 4.1 薄膜的最佳化條件 ........................................................................... 36 4.1.1混合前的溶劑特性 ................................................................... 36 4.2最佳摻雜比例 .................................................................................... 38 4.2.1PFO+(R/S)-811-(100:1-100:20)-140-3000rpms-CD ..................... 38 4.2.2PFO+(R/S)-811-(100-1-100-20)-140-3000RPMS-CPL................... 40 4.3最佳退火溫度 .................................................................................... 42 4.3.1PFO+(R/S)-811-(100:20)-40-160-3000rpms-CD .......................... 42 4.3.2PFO+(R/S)-811(100:20)-40-160-3000rpms-CPL .......................... 44 4-4旋塗法的轉速影響2000rpms vs 3000rpms ...................................... 46 4-5.純PFO薄膜與PFO摻雜R/S-811後的最佳條件下的薄膜 ............. 48 4-6 XRD成像 ............................................................................................ 52 第五章 結論: ............................................................... 53

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