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| DC 欄位 | 值 | 語言 |
|---|---|---|
| dc.contributor.advisor | 吳忠幟(Chung-Chih Wu) | |
| dc.contributor.author | Kun-Cheng Tien | en |
| dc.contributor.author | 田堃正 | zh_TW |
| dc.date.accessioned | 2021-06-15T04:48:29Z | - |
| dc.date.available | 2013-08-06 | |
| dc.date.copyright | 2010-08-06 | |
| dc.date.issued | 2010 | |
| dc.date.submitted | 2010-08-02 | |
| dc.identifier.uri | http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/45903 | - |
| dc.description.abstract | 在本論文中，首先是對非等向性及等向性發光材料所組成的有機發光元件結構建構光學模型並模擬其發光特性。並製作了分別具有非等向性及等向性光學特性的發光元件，量測發光頻譜，並與理論計算的結果相比較，發現相當吻合，因而確定該模型的有效性。
接下來我們分析了堆疊串接式白光有機發光元件(紅光+綠光+藍光堆疊串接式、雙色光+單色光堆疊串接式以及白光+白光堆疊串接式)的發光特性，結果發現雙色光+單色光堆疊串接式結構有著較好的色彩穩定度。 此外，我們針對不同氧化銦錫厚度的弱微共振腔有機發光元件結構進行理論計算及實驗研究，發現改變氧化銦錫厚度會使得元件效率有顯著的變化(1.34倍量子效率、1.44倍電流效率以及1.51倍功率效率之變化)。 另外，我們在厚度減薄的金屬電極上製作適當的吸光/再放光層，能夠將部分侷限在有機發光元件內的表面電漿子，藉由能量轉移機制而再放光。這種方法可用於實現具有光色可調性的雙面異色有機發光元件。 緊接著，我們對於金屬奈米顆粒的光學特性，以及它們和表面電漿子與強微共振腔結構之間的交互作用進行了研究。發現其反射頻譜在其共振頻率處會有明顯的峰值，而其頻率可藉由改變共振腔長度來調變。最後，我們針對強微共振腔結構與強吸光材料之間的交互作用進行討論，發現了類似上述的選擇性反射現象，未來有可能應用在反射式顯示器上。 | zh_TW |
| dc.description.abstract | In this dissertation, first the optical modeling and emission characteristics of OLEDs with anisotropic and isotropic emitting materials were discussed. Devices with anisotropic and isotropic emitting materials were fabricated and measured for comparison with simulation results. Experimental results match calculated results fairly well, therefore confirming the validity of the model.
Then the emission characteristics of tandem white OLEDs (R+G+B tandem, 2-color+1-color tandem, and white+white tandem) were analyzed. It was found that 2-color + 1-color tandem structure gives lower color shift than the other two types. The weak-microcavity device structures with varied ITO thicknesses were investigated theoretically and experimentally. The efficiency characteristics of these devices showed significant variations (1.34 times in quantum efficiencies, 1.44 times in cd/A efficiencies and 1.51 times in lm/W efficiencies) in varying ITO thickness. Furthermore, we recycled a portion of surface plasmon polaritons (SPPs) in OLEDs by capping the thinned metal electrode with an appropriate absorbing/re-emission medium, inducing SPP-mediated energy transfer and re-emission. Such an approach may be used for implementing double-emitting OLEDs with different emission colors on two sides and with a broad color tuning capability. Next, the optical properties of metal nanoparticles and their interaction with SPPs and strong-microcavity structures were investigated. It was found that the reflectance spectra show obvious peaks around the resonance frequencies and they can be tuned by changing the cavity length. Finally, interaction between strong-microcavity structures and the strongly absorptive capping was discussed. Selective reflection phenomena were observed, which have the potential for use in reflective displays. | en |
| dc.description.provenance | Made available in DSpace on 2021-06-15T04:48:29Z (GMT). No. of bitstreams: 1 ntu-99-F93941001-1.pdf: 3990380 bytes, checksum: 7421e64b4c6a3aea9f250d3b02da2aad (MD5) Previous issue date: 2010 | en |
| dc.description.tableofcontents | 摘要 i
Abstract ii Contents iv List of Figures viii List of Tables xvi Chapter 1 Introduction 1 1.1 Overview of Organic Light-Emitting Devices 1 1.2 Optical Theories of Organic Light-Emitting Devices 3 1.3 Tandem Organic Light-Emitting Devices 5 1.4 Microcavity Structures in Optoelectronic Devices 7 1.5 Surface Plasmon Polaritons in Optoelectronic Devices 9 1.6 Localized Surface Plasmons in Optoelectronic Devices 11 1.7 Dissertation Organization 13 References 16 Chapter 2 Anisotropic Optical Modeling of Organic Light-Emitting Devices 29 2.1 Introduction 29 2.2 Fundamental Theory 31 2.2.1 Dipole Radiation in a Uniaxial Medium 31 2.2.2 Modification of Radiation in Layered Structure 33 2.2.3 Radiated Power of the Dipole Field 34 2.3 Optical Modeling of OLED 36 2.3.1 Parameters of Layers 36 2.3.2 Modeling Light-Emitting Molecules by Classical Electric Dipoles 37 2.4 Experiments and Analysis 40 2.4.1 Materials and Device Fabrication 40 2.4.2 Results and Analysis 41 2.5 Summary 43 References 44 Figures 48 Chapter 3 Analysis and Design Considerations of Tandem White Organic Light-Emitting Devices for Displays 53 3.1 Introduction 53 3.2 Electromagnetic Simulation of OLEDs 55 3.3 Analyses of Single-Color Devices 58 3.3.1 Device Structures Investigated 58 3.3.2 Results and Analysis 59 3.4 Analyses of Tandem White Devices 61 3.4.1 R + G + B Tandem 61 3.4.2 2-Color + 1-Color Tandem 63 3.4.3 White + White Tandem 66 3.5 Summary 70 References 72 Tables and Figures 76 Chapter 4 Tuning Light Outcoupling of Organic Light-Emitting Devices by Varying the Thickness of Transparent Anode 90 4.1 Introduction 90 4.2 Experimental 92 4.2.1 OLED Device Structures Investigated 92 4.2.2 Electromagnetic Model for OLEDs 94 4.3 Results and Discussions 96 4.3.1 Simulation Results 96 4.3.2 Experiment Results 97 4.4 Summary 99 References 100 Tables and Figures 105 Chapter 5 Utilizing Surface Plasmon Polariton Mediated Energy Transfer for Tunable Double-Emitting Organic Light-Emitting Devices 110 5.1 Introduction 110 5.2 Experimental 112 5.2.1 OLED Device Structures Investigated 112 5.2.2 Electromagnetic Simulation of OLEDs 114 5.2.3 OLED Fabrication and Characterization 115 5.3 Results and Discussions 117 5.3.1 Electromagnetic Simulation of SPP Modes in OLEDs 117 5.3.2 Color-Tunable Double-Emitting Devices: Type I 118 5.3.3 Color-Tunable Double-Emitting Devices: Type II 124 5.4 Summary 126 References 127 Tables and Figures 130 Chapter 6 Optical Properties of Localized Surface Plasmons and Their Interaction with Surface-Plasmon Polaritons 142 6.1 Introduction 142 6.2 Fabrication of Metal Nanoparticles 144 6.3 Optical Properties of Metal Nanoparticles 145 6.4 Interaction Between Localized Surface Plasmons and Surface Plasmon Polaritons 148 6.5 Summary 151 References 152 Figures 155 Chapter 7 Selective Reflection from Microcavity Structure with Metamaterial Asymmetric Mirrors 162 7.1 Introduction 162 7.2 Fabrication and Characterization of Metal Nanoparticles 165 7.3 Interaction Between Localized Surface Plasmons and Surface Plasmon Polaritons 167 7.4 Integration of Metamaterial Asymmetric Mirror and Microcavity Structure 170 7.5 Summary 172 References 173 Figures 176 Chapter 8 Selective Reflection from Microcavity Structure with Strongly Absorptive Capping Layer 182 8.1 Introduction 182 8.2 Experimental 184 8.2.1 Sample Structures Investigated and Characterization 184 8.2.2 Electromagnetic Simulation 186 8.3 Results and Discussions 188 8.3.1 Optical Properties of Microcavity Structure 188 8.3.2 Integration of Microcavity Structure and Strongly Absorptive Materials 189 8.4 Summary 193 References 194 Figures 197 Chapter 9 Summary and Future Directions 204 9.1 Summary 204 9.2 Future Directions 208 References 210 Publication List 212 Journal Publications 212 Conference Papers 213 | |
| dc.language.iso | en | |
| dc.subject | 有機發光元件 | zh_TW |
| dc.subject | 堆疊串接式 | zh_TW |
| dc.subject | 微共振腔 | zh_TW |
| dc.subject | 表面電漿子 | zh_TW |
| dc.subject | 侷域表面電漿子 | zh_TW |
| dc.subject | 選擇性反射 | zh_TW |
| dc.subject | localized surface plasmon | en |
| dc.subject | tandem | en |
| dc.subject | organic light-emitting devices | en |
| dc.subject | selective reflection | en |
| dc.subject | surface plasmon polaritons | en |
| dc.subject | microcavity | en |
| dc.title | 有機光電元件內的微共振腔效應及表面電漿子之研究 | zh_TW |
| dc.title | Investigation of Microcavity Effects and Surface Plasmon Polaritons in Organic Electro-Optical Devices | en |
| dc.type | Thesis | |
| dc.date.schoolyear | 98-2 | |
| dc.description.degree | 博士 | |
| dc.contributor.oralexamcommittee | 林皓武(Hao-Wu Lin),陳介偉(Chieh-Wei Chen),謝信弘(Hsing-Hung Hsieh),林俊良(Chun-Liang Lin) | |
| dc.subject.keyword | 有機發光元件,堆疊串接式,微共振腔,表面電漿子,侷域表面電漿子,選擇性反射, | zh_TW |
| dc.subject.keyword | organic light-emitting devices,tandem,microcavity,surface plasmon polaritons,localized surface plasmon,selective reflection, | en |
| dc.relation.page | 215 | |
| dc.rights.note | 有償授權 | |
| dc.date.accepted | 2010-08-04 | |
| 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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