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| DC 欄位 | 值 | 語言 |
|---|---|---|
| dc.contributor.advisor | 林建中 | zh_TW |
| dc.contributor.advisor | Chien-Chung Lin | en |
| dc.contributor.author | 江科熹 | zh_TW |
| dc.contributor.author | Ke-Hsi Chiang | en |
| dc.date.accessioned | 2025-02-20T16:09:29Z | - |
| dc.date.available | 2025-02-21 | - |
| dc.date.copyright | 2025-02-20 | - |
| dc.date.issued | 2025 | - |
| dc.date.submitted | 2025-01-17 | - |
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| dc.identifier.uri | http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/96603 | - |
| dc.description.abstract | 傳統都是製作方形藍光發光二極體，然而，對於光場我們並不是那麼熟悉，不確定實際側面發光與正向發光之物理特性，因此我們從光鋐科技股份有限公司購買藍光磊晶片並設計製作各個不同大小的U形發光二極體，並利用 Osram之型號SFH2240的光電偵測器進行光場分析。光場分析包刮水平移動與垂直移動光電偵測器，比較各個不同大小的U形與方形藍光發光二極體之差異。
本篇除了會提到U形發光二極體與方形光場差異外，也會從中比較有泡氫氧化四甲基銨鹼性液體(TMAH)與沒泡之U形發光二極體光特性與電特性差異，最後也會比較其光譜，觀察波峰位移現象。 | zh_TW |
| dc.description.abstract | Traditionally, square blue light-emitting diodes (LEDs) have been manufactured. However, we are not very familiar with the light field and are uncertain about the physical characteristics of side emission and forward emission of light-emitting diodes. Therefore, we purchased blue LED epitaxial wafers from Epileds Technologies, Inc. and designed and fabricated U-shaped LEDs of various sizes. The light field analysis was conducted using the Osram photodetector model SFH2240. The analysis includes both horizontal and vertical movements of the photodetector to compare the differences in light emission between U-shaped and square blue LEDs of different sizes.
This paper will not only discuss the differences in the light field of U-shaped LEDs versus square LEDs, but also compare the optical and electrical characteristics of U-shaped LEDs with and without TMAH alkaline liquids solution soaking. Finally, the spectral comparison will be made to observe any peak wavelength shifts. | en |
| dc.description.provenance | Submitted by admin ntu (admin@lib.ntu.edu.tw) on 2025-02-20T16:09:28Z No. of bitstreams: 0 | en |
| dc.description.provenance | Made available in DSpace on 2025-02-20T16:09:29Z (GMT). No. of bitstreams: 0 | en |
| dc.description.tableofcontents | Content
致謝 I 摘要 II Abstract III List of Figure VI List of Tables XV Chapter1 Introduction 1 1.1 Light-emitting-diode (LED) history and its advantage 1 1.2 Motivation 4 1.3 The working principles of light-emitting-diode (LED) 4 1.3.1 spectrum shift 8 1.4 Paper review 11 Chapter2 Experiment principles and instruments 15 2.1 Ohmic and Schottky contact 15 2.2 Current crowding effect 17 2.3 Photolithography process 19 2.4 Dry and wet etching 22 2.5 Plasma Enhanced Chemical Vapor Deposition (PECVD) 24 2.6 Electron Beam Evaporation 26 Chapter3 Process Order 27 3.1 structure top view and side view 27 3.2 Process flow of u-shape micro-LED 29 3.2.1 ITO and Mesa etching with ICP-RIE and TMAH 29 3.2.2 N-metal coating 31 3.2.3 Passivation deposition and open P-contact and N-contact 32 Chapter4 Analysis of electrical and optical characteristics 34 4.1 Electrical properties 34 4.2 ideal factor 49 4.3 Series resistance 51 4.4 Spectrum of u-shape micro-LED 53 Chapter5 Light Characteristics 67 5.1 External Quantum Efficiency (EQE) and Jpeak analysis 67 5.2 Photonic field distribution 79 Chapter6 Conclusion and Future Work 84 6.1 Conclusion 84 6.2 Future work 85 Reference 86 | - |
| dc.language.iso | en | - |
| dc.subject | 氫氧化四甲基銨 | zh_TW |
| dc.subject | 發光效率 | zh_TW |
| dc.subject | 光場分析 | zh_TW |
| dc.subject | 光譜位移 | zh_TW |
| dc.subject | 藍光二極體 | zh_TW |
| dc.subject | Luminous efficiency | en |
| dc.subject | Blue Light Emitting Diode (Blue LED) | en |
| dc.subject | Spectrum Shift | en |
| dc.subject | Light Field Analysis | en |
| dc.subject | TMAH (Tetramethylammonium Hydroxide) | en |
| dc.title | 氮化銦鎵U形藍光發光二極體的光電特性與光場特性之研究 | zh_TW |
| dc.title | Investigation of the optoelectronic properties and photonic field characteristics on InGaN U-shape blue light emitting diodes | en |
| dc.type | Thesis | - |
| dc.date.schoolyear | 113-1 | - |
| dc.description.degree | 碩士 | - |
| dc.contributor.oralexamcommittee | 黃建璋;陳國平 | zh_TW |
| dc.contributor.oralexamcommittee | Jian-Jang Huang;Kuo-Ping Chen | en |
| dc.subject.keyword | 藍光二極體,光譜位移,光場分析,氫氧化四甲基銨,發光效率, | zh_TW |
| dc.subject.keyword | Blue Light Emitting Diode (Blue LED),Spectrum Shift,Light Field Analysis,TMAH (Tetramethylammonium Hydroxide),Luminous efficiency, | en |
| dc.relation.page | 89 | - |
| dc.identifier.doi | 10.6342/NTU202500136 | - |
| dc.rights.note | 未授權 | - |
| dc.date.accepted | 2025-01-17 | - |
| 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 | N/A | - |
| 顯示於系所單位： | 光電工程學研究所 | |
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| ntu-113-1.pdf 未授權公開取用 | 7.55 MB | Adobe PDF |
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