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| DC 欄位 | 值 | 語言 |
|---|---|---|
| dc.contributor.advisor | 李君浩 | |
| dc.contributor.author | Teng-Yi Yang | en |
| dc.contributor.author | 楊騰毅 | zh_TW |
| dc.date.accessioned | 2021-06-16T10:55:03Z | - |
| dc.date.available | 2018-08-20 | |
| dc.date.copyright | 2013-08-20 | |
| dc.date.issued | 2013 | |
| dc.date.submitted | 2013-08-09 | |
| dc.identifier.citation | Chapter1
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| dc.identifier.uri | http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/61236 | - |
| dc.description.abstract | 本論文主要探討在脈衝驅動下有機發光二極體的暫態行為，以及研究表面奈米結構以降低表面的反射率。
我們使用暫態電致放光來研究暫態載子行為，在不同脈衝驅動下並且建立侷限與反侷限模型。調變不同的佔空比、負偏壓、以及脈衝的電壓大小來觀察暫態電致放光現象，並且使用模型解釋載子動態行為，藉由延遲時間、爬升時間、衰減時間來作觀察，同時研究在高濃度磷光有機發光二極體元件中的載子行為和侷限機制。最後我們製作不同面積之有機發光二極體來研究電容效應對其影響。 此外，我們設計製造具有高穿透度、低反射、抗沾汙、耐磨損、可撓曲的薄膜，使用軟性基板加上抗污耐損耗的高分子塗層來進行奈米結構的翻印來製造，降低反射。並成功製造出具有最低反射率 0.1%、最低霧度0.64%、最大鉛筆硬度2H到3H、最小曲率半徑8 mm，以及影像品質97% 的薄膜。 | zh_TW |
| dc.description.abstract | In this thesis, we investigate the transient behavior of organic light-emitting diodes (OLEDs) under electrical pulse driving. And we also study the surface nano-structures to reduce surface reflectance.
We use transient electroluminescence (TREL) to investigate the transient carrier dynamic under pulse driving and build the trap and de-trap model. We adjust duty cycle, negative bias, and voltage value of pulse to observe the TREL signal and explain the carrier dynamic from delay time, rise time, and fall time within the model. We also investigate carrier behavior and traps mechanism in high dopant concentration of phosphorescent OLEDs. Finally, with different area size of OLEDs, we see the capacitance effect to the response of OLED. Besides, we design and fabricate flexible films with high transmittance, hardness, and water contact angle, and low reflectance by imprinting nanostructures on a UV curable polymer and then treat with fluoroalkyl material. We successfully fabricate the flexible films, which possess minimal reflectance, haze, and flexibility of 0.10%, 0.64%, and 8 mm, respectively, and a maximal pencil hardness and universal image quality index of 2H to 3H and 0.97, respectively. | en |
| dc.description.provenance | Made available in DSpace on 2021-06-16T10:55:03Z (GMT). No. of bitstreams: 1 ntu-102-R00941036-1.pdf: 8283620 bytes, checksum: ebed688b6dbe8c14a4d0c4dc28979900 (MD5) Previous issue date: 2013 | en |
| dc.description.tableofcontents | 中文摘要 i
ABSTRACT iii CONTENTS iv LIST OF FIGURES vii LIST OF TABLES xi Chapter 1 Introduction 1 1.1 Overview 1 1.2 Transient electroluminescence of organic light-emitting diode (OLED) 1 1.2.1 Introduction of OLED 1 1.2.2 Introduction of transient electroluminescence (TREL) 2 1.3 Anti-reflection technology with nanostructures 5 1.4 Motivation 8 1.5 Thesis structure 8 Chapter 2 Fabrication and measurements 11 2.1 Introduction 11 2.2 OLED fabrication and characterization 11 2.2.1 Fabrication of OLED 11 2.2.2 Brightness-current-voltage (BIV) measurement system 11 2.2.3 TREL measurement setup 12 2.3 Fabrication and characterization of self-cleaning anti-reflection flexible film with high mechanical strength 13 2.3.1 UV-curable polymer film preparation 13 2.3.2 Nano-sphere template fabrication 14 2.3.3 Imprint process 15 2.3.4 Anti-sticking treatment 16 2.3.5 Optical measurement 17 2.3.6 Pencil hardness measurement 18 2.3.7 Contact angle measurement 19 2.3.8 Flexibility measurement 20 2.3.9 SEM measurement 21 Chapter 3 Transient electroluminescence of blue phosphorescent organic light-emitting diode 22 3.1 Introduction 22 3.2 TREL of mCP:FIrpic dopant blue OLED device 24 3.2.1 TREL with different pulse width, pulse interval, and duty cycle. 24 3.2.2 TREL at turn-off negative bias driving 30 3.2.3 TREL different concentration of dopant OLED device 33 3.2.4 TREL with different area size OLED device. 40 Chapter 4 Anti-smug and anti-reflective flexible films with high mechanical strengths 48 4.1 Introduction 48 4.2 Planar films 49 4.3 Nanosphere template 55 4.4 Nanosphere imprint 56 4.5 Optical performances of imprinted polymeric films on PET-treat substrates 64 4.6 Optical performances of planar and imprinted P5 series at different substrate 68 4.7 Water contact angle and fluoroalkyl anti-sticking process 71 Chapter 5 Conclusions and future works 74 5.1 Conclusions 74 5.2 Future works 75 | |
| dc.language.iso | en | |
| dc.subject | 高硬度 | zh_TW |
| dc.subject | 低反射 | zh_TW |
| dc.subject | 暫態電致放光 | zh_TW |
| dc.subject | 有機發光二極體 | zh_TW |
| dc.subject | Organic light-emitting diode | en |
| dc.subject | transient electroluminescence | en |
| dc.subject | low reflection | en |
| dc.subject | high hardness | en |
| dc.title | 有機發光二極體暫態電致放光及軟性低反射基板之研究 | zh_TW |
| dc.title | Study of transient electroluminescence of organic light-emitting diode and flexible low reflection substrate | en |
| dc.type | Thesis | |
| dc.date.schoolyear | 101-2 | |
| dc.description.degree | 碩士 | |
| dc.contributor.oralexamcommittee | 梁文傑,魏茂國,彭隆瀚 | |
| dc.subject.keyword | 有機發光二極體,暫態電致放光,低反射,高硬度, | zh_TW |
| dc.subject.keyword | Organic light-emitting diode,transient electroluminescence,low reflection,high hardness, | en |
| dc.relation.page | 76 | |
| dc.rights.note | 有償授權 | |
| dc.date.accepted | 2013-08-09 | |
| dc.contributor.author-college | 電機資訊學院 | zh_TW |
| dc.contributor.author-dept | 光電工程學研究所 | zh_TW |
| 顯示於系所單位： | 光電工程學研究所 | |
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