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| ???org.dspace.app.webui.jsptag.ItemTag.dcfield??? | Value | Language |
|---|---|---|
| dc.contributor.advisor | 李君浩 | zh_TW |
| dc.contributor.advisor | JIUN-HAW LEE | en |
| dc.contributor.author | 邱景皇 | zh_TW |
| dc.contributor.author | CHIN HUANG CHIU | en |
| dc.date.accessioned | 2025-08-20T16:35:59Z | - |
| dc.date.available | 2025-10-03 | - |
| dc.date.copyright | 2025-08-20 | - |
| dc.date.issued | 2025 | - |
| dc.date.submitted | 2025-08-14 | - |
| dc.identifier.citation | Chapter 1:
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[3] Chen, C.H., Lin, S.C., Lin, B.Y., Li, C.Y., Kong, Y.C., Chen, Y.S., Fang, S.C., Chiu, C.H., Lee, J.H., Wong, K.T., Lin, C.F., Hung, W.Y., Chiu, T.L., Blue TADF OLEDs with improved device performance, Chem. Eng. J. 442 (2022) 136292. [4] Jesuraj, P.J., Jeganathan, K., Synthesis and characterization of organic semiconductors, RSC Adv. 5 (2015) 684–689. | - |
| dc.identifier.uri | http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/98999 | - |
| dc.description.abstract | 本篇論文中包含三個主題。第一個主題，我們介紹由化學所梁文傑教授團隊所合成的吖啶-咔唑-嘧啶的衍生物為天藍色熱活化延遲螢光（thermally activated delayed fluorescence, TADF）發光體的有機二極體。其中，以10-(3,5-di(9H-carbazol-9-yl)-4-(pyrimidin-2-yl)phenyl)-9,9-dimethyl-9,10-dihydroacridine (4Ac35CzPy), 10-(2,5-di(9H-carbazol-9-yl)-4-(pyrimidin-2-yl)phenyl)-9,9-dimethyl-9,10-dihydroacridine (4Ac25CzPy) 作為發光體，摻雜於9,9'-(2-(1-Phenyl-1H-benzo[d]imidazol-2-yl)-1,3-phenylene)bis(9H-carbazole) (o-2CbzBz) 形成發光層的有機二極體中，達到了最大電流效率為50.4 cd/A;最大功率效率為45.3 lm/W;以及最大外部量子效率（external quantum efficiency, EQE）為21.2%的元件表現。
第二個主題，我們介紹由化學所梁文傑教授團隊所合成的以吖啶-咔唑的衍生物為發光層主體材料的有機二極體。其中，以透過在10-(3,5-di(9H-carbazol-9-yl)-4-(1-phenyl-1H-benzo[d]imidazol-2-yl)phenyl)-9,9-dimethyl-9,10-dihydroacridine (4Ac26CzBz)摻雜天藍色的熱活化延遲螢光客體材料2,3,5,6-tetrakis(3,6-di-tert-butyl-9H-carbazol-9-yl)benzonitrile (4TCzBN)，有機發光二極體達到最大電流效率為59.84 cd/A，最大功率效率為62.84 lm/W，最大外部量子效率為35.78%，是目前我們已知此材料所有的以4TCzBN為客體材料有機發光二極體中最高紀錄。 | zh_TW |
| dc.description.abstract | There are three topics in this thesis. In the first part, acridine-carbazole-imidazole derivatives, 10-(3,5-di(9H-carbazol-9-yl)-4-(pyrimidin-2-yl)phenyl)-9,9-dimethyl-9,10-dihydroacridine (4Ac35CzPy) and 10-(2,5-di(9H-carbazol-9-yl)-4-(pyrimidin-2-yl)phenyl)-9,9-dimethyl-9,10-dihydroacridine (4Ac25CzPy), provided by Prof. Man-Kit Leung’s group, Department of Chemistry in National Taiwan University, were used as blue thermally activated delayed fluorescence (TADF) dopants in the 9,9'-(2-(1-Phenyl-1H-benzo[d]imidazol-2-yl)-1,3-phenylene)bis(9H-carbazole) (o-2CbzBz) host as the emitting layer (EML) of the organic light-emitting diodes (OLEDs), which reached the maximum current efficiency, power efficiency, and external quantum efficiency (EQE) of 50.4 cd/A, 45.3 lm/W, and 19.7%, respectively.
In the second part of this thesis, 10-(3,5-di(9H-carbazol-9-yl)-4-(1-phenyl-1H-benzo[d]imidazol-2-yl) phenyl)-9,9-dimethyl-9,10-dihydroacridine (4Ac26CzBz), provided by Prof. Man-Kit Leung’s group, Department of Chemistry in National Taiwan University, was utilized as host material doped with the sky-blue thermally activated delayed fluorescence (TADF) dopant, 2,3,5,6-tetrakis(3,6-di-tert-butyl-9H-carbazol-9-yl) benzonitrile (4TCzBN) as the EML of the OLED. By adjusting the device structure, maximum current efficiency, power efficiency, and EQE of 59.84 cd/A, 62.83 lm/W, and 35.78% were achieved, respectively, which are the highest efficiencies among all the 4TCzBN-based OLEDs, to our best knowledge. | en |
| dc.description.provenance | Submitted by admin ntu (admin@lib.ntu.edu.tw) on 2025-08-20T16:35:59Z No. of bitstreams: 0 | en |
| dc.description.provenance | Made available in DSpace on 2025-08-20T16:35:59Z (GMT). No. of bitstreams: 0 | en |
| dc.description.tableofcontents | 致謝 I
摘要 II Abstract III 材料簡寫 IV Molecular structures V Content VII Figure content IX Table content XVII Chapter 1 Introduction 1 1.1 Overview 1 1.2 Introduction of TADF OLED 1 1.3 Review of comprising acridan-pyrimidine TADF OLED 2 1.4 Review of comprising carbazole-based TADF OLED 2 1.5 Review of blue TADF OLED with 4TCzBN as dopant 4 1.6 Motivation 5 1.7 References 5 Chapter 2 Experiment 8 2.1 OLED fabrication process 8 2.2 Measurement systems 9 2.2.1 J-V-L, EQE, and operation lifetime measurements 9 2.2.2 TrEL measurement 10 2.2.3 TrPL and PLQY measurement 11 2.2.4 Absorption and PL spectra 12 2.2.5 Photoelectron spectroscopy 13 2.3 References 14 Chapter 3 High-efficiency blue TADF OLED with 4Ac25CzPY and 4Ac35CzPY as the emitters 15 3.1 Introduction 15 3.2 Photophysical properties of 4Ac25CzPy and 4Ac35CzPy 16 3.3 Device performances of 4Ac25CzPy and 4Ac35CzPy as OLED emitter 20 3.4 Optimization procedure of TADF OLED with 4Ac35CzPy as the emitter 26 3.4.1 Selection of host materials 26 3.4.2 Optimization of dopant concentration 32 3.4.3 Optimization of ETL thickness 37 3.4.4 Optimization of EML thickness 43 3.5 Optimization procedure of TADF OLED with 4Ac25CzPy as the emitter 48 3.6 References 53 Chapter 4 High-efficiency blue TADF OLED with 4Ac26CzBz as the host material 53 4.1 Introduction 54 4.2 Photophysical properties of 4Ac26CzBz derivative 54 4.3 High-efficiency blue TADF-OLEDs 61 4.4 Optimization procedures of TADF OLED with 4Ac26CzBz as host and 4TCzBN as the dopant 67 4.4.1 Optimization of dopant concentration 68 4.4.1 Optimization of ETL thickness 74 4.4.2 Optimization of EML thickness 78 4.5 Sky-blue Phosphorescent OLED with FIrpic emitter 82 4.5.1 FIrpic-based OLED with Different EBL Materials 88 4.6 References 93 Chapter 5 Summary 94 Appendix 95 | - |
| dc.language.iso | en | - |
| dc.subject | 藍色熱活化延遲螢光放光 | zh_TW |
| dc.subject | 吖啶咔唑 | zh_TW |
| dc.subject | Acidan-Carbazole Derivatives | en |
| dc.subject | Thermally Activated Delayed Fluorescence | en |
| dc.title | 以吖啶咔唑衍生物製作藍色熱活化延遲螢光放光有機發光二極體之研究 | zh_TW |
| dc.title | Researches on Blue Thermally Activated Delayed Fluorescence Organic Light-emitting Diodes with Acidan-Carbazole Derivatives | en |
| dc.type | Thesis | - |
| dc.date.schoolyear | 113-2 | - |
| dc.description.degree | 碩士 | - |
| dc.contributor.oralexamcommittee | 邱天隆;梁文傑 | zh_TW |
| dc.contributor.oralexamcommittee | Tien-Lung Chiu;Man-kit Leung | en |
| dc.subject.keyword | 吖啶咔唑,藍色熱活化延遲螢光放光, | zh_TW |
| dc.subject.keyword | Thermally Activated Delayed Fluorescence,Acidan-Carbazole Derivatives, | en |
| dc.relation.page | 129 | - |
| dc.identifier.doi | 10.6342/NTU202503850 | - |
| dc.rights.note | 同意授權(全球公開) | - |
| dc.date.accepted | 2025-08-15 | - |
| dc.contributor.author-college | 電機資訊學院 | - |
| dc.contributor.author-dept | 光電工程學研究所 | - |
| dc.date.embargo-lift | 2025-10-03 | - |
| Appears in Collections: | 光電工程學研究所 | |
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| ntu-113-2.pdf | 13.14 MB | Adobe PDF | View/Open |
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