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研究生： 詹崴翔
Chan, Wei-Hsiang.
論文名稱： 紅光至近紅外光鉑金屬磷光錯合物之合成、光物理性質探討與OLEDs上的應用
Red to Near-Infrared Phosphorescent Platinum(II) Complexes: Synthesis, Characterization and Applications in OLEDs
指導教授： 季昀
Chi, Yun
口試委員: 陳建添
Chen, Chien-Tien
李紫原
Lee, Chi-Young
衛子健
Wei, Tzu-Chien
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： 2019
畢業學年度： 107
語文別： 中文
論文頁數： 148
中文關鍵詞： 紅光 、近紅外光 、鉑金屬 、磷光錯合物 、有機發光二極體
外文關鍵詞： Red, NIR
相關次數： 點閱：2  下載：0 
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    • 近10年來，近紅外光（NIR）有機發光二極體（OLEDs）、無論是螢光或是磷光放光、它們的應用受到越來越多的關注，因其可應用在光動能治療(photodynamic therapy)、夜視設備(night-vision readable devices)、生物顯影(bio-imaging)等領域中。在此，合成了三個系列的磷光Pt（II）錯合物，並研究了它們在昇華粉末，蒸鍍薄膜和元件上的光物理性質。首先第一系列，研究發現不論有無引入大立障官能基2,6-dimethylphenyl (dmp) 和2,6-diisopropylphenyl (dip)，在蒸鍍薄膜與元件上，其最大放光波長差異不大，都在深紅光位置。製作元件後以1e擁有最高的外部量子效率26.7%。第二系列在五元環上引入N 原子形成triazolate，研究發現最大放光波長藍位移，推測原因為，五元環triazole相對於pyrazole有更強的拉電子特性，會降低HOMO能階位置，使分子整體能階變大，進而導致藍位移的現象發生。製作元件後以2c擁有最高的外部量子效率22.8%。第三系列引入具有更強場配位的pyridyl pyrimidine (N^C) 配位基，合成出一系列異配位錯合物，其放光波長都達到近紅外光波段，此外，在蒸鍍薄膜上3c擁有最大放光波長可達810 nm且保有30% 的量子產率，製作元件後3c最大電激放光波長為760 nm，外部量子效率為7.1%

    In the past 10 years, phosphorescent near-infrared (NIR) organic light-emitting devices (OLEDs) have drawn increasing attention for their promising applications in the fields such as photodynamic therapy、night-vision readable displays, and bio-imaging. Here, three series of phosphorescent Pt(II) complexes are synthesized, and their photophysical properties in sublimed powder、vapor-deposited thin films, and organic light-emitting devices (OLEDs) are investigated. In the first series, the research find that whatever large barrier functional such like dimethylphenyl (dmp) and diisopropyl phenyl (dip) we add, the maximum emission wavelength shows no different between the vapor-deposited thin films and the devices. All emissions are in deep red region. After the devices are fabricated, 1e has the highest external quantum efficiencies of 26.7 %. Secondly, we introduce N atoms into the five-membered ring to form triazole. The study find that all complexes show the phenomenon of hypsochromic shift. We consider that the triazole has stronger electron-withdrawing property than pyrazole, which reduces the HOMO level. After the devices are fabricated, 2c has the highest external quantum efficiencies of 22.8 %. Lastly, a ligand of pyridylpyrimidine (N^C) with stronger field is added to synthesize a series of heteroleptic complexes, and all the emissions reach the near-infrared region. Additionally, 3c has the hight emission wavelength 810 nm, and maintains nearly 30% of the quantum yield in the vapor-deposited thin films. After the devices are fabricated, 3c displays greatly red-shifted EL emission at 760 nm, and has the external quantum efficiencies of 7.1 %.

    摘要 1 Abstract 2 謝誌 3 目錄 4 圖目錄 6 表目錄 9 第一章、序論 10 第一節、前言 10 第二節、OLEDs 歷史及簡介 11 第三節、OLEDs元件發光原理 13 第四節、螢光磷光發光原理 18 第五節、磷光材料鉑金屬錯合物與其OLEDs上的運用 21 第六節、近紅外區磷光材料研發 28 第七節、研究動機 32 第二章、實驗合成 33 第一節、試藥 33 第二節、分析工具 33 第三節、配位基之合成 36 第四節、Pt(Ⅱ)錯合物之合成 51 第三章、結果與討論 64 第一節、[isoquinolyl pyrazole (N^N)H]系列Pt(Ⅱ)錯合物 64 第二節、[pyridyl/pyrazinyl pyrazole/triazole (N^N)H]系列Pt(Ⅱ)錯合物 74 第三節、[pyridyl pyrimidine(N^C)]系列Pt(Ⅱ)錯合物 86 第四節、結論 97 第五章、參考文獻 98 第六章、附錄 101 第一節、Pt(Ⅱ)磷光材料研究方向 101 第二節、Pt(Ⅱ)錯合物數據總整理 110

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