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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 | 陳沁怡 | zh_TW |
| dc.contributor.author | Chin-I Chen | en |
| dc.date.accessioned | 2026-02-26T17:00:50Z | - |
| dc.date.available | 2026-02-27 | - |
| dc.date.copyright | 2026-02-26 | - |
| dc.date.issued | 2025 | - |
| dc.date.submitted | 2026-01-21 | - |
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| dc.identifier.uri | http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/101722 | - |
| dc.description.abstract | 本研究製作多種面積與幾何結構之砷化鎵（GaAs）太陽能電池，以探討元件尺寸、形狀與量子點材料對元件光電特性的影響。首先分別製作小面積與大面積太陽能電池，並設計四種幾何形狀，包括方形 (square)、回字形 (hollow)、十字形 (cross)與ㄇ字形 (u- shape)。研究中，分別使用膠體量子點（colloidal quantum dots, CQDs）以定量吸管滴覆綠色量子點（GQDs）於元件表面或元件檯面（mesa）旁，並製作量子點光阻（quantum dot photoresist, QDPR）薄膜。
透過 J–V 曲線和外部量子效率（External Quantum Efficiency, EQE）量測，觀察其對元件性能的影響。實驗結果顯示，直接滴覆 GQD 於元件表面效果最為顯著，其中回字形與ㄇ字形元件的短路電流分別增加約 5% 與 12%。外部量子效率分析不同濃度量子點及元件側壁的影響，結果同樣顯示表面滴覆效果最佳。製作紅色與綠色 QDPR 薄膜後，進一步計算藍光及 UV 光下的色彩轉換效率（color conversion efficiency, CCE），結果證實量子點材料可透過Luminescent Downshifting (LDS) 效應，將高能光子轉換為適合 GaAs 吸收的光子，有效提升光吸收與載子收集效率。同時評估將薄膜置於元件檯面旁的 J–V 變化。 綜合而言，本研究證明透過幾何設計與量子點材料整合，可有效提升 GaAs 太陽能電池光電性能，並為高效率太陽能電池提供新的思路。 | zh_TW |
| dc.description.abstract | This study fabricated GaAs solar cells with various device areas and geometrical structures to investigate the effects of device size, geometry, and quantum dot materials on their photovoltaic performance. Small- and large-area solar cells were prepared with four different geometries, including square, hollow, cross, and u-shape designs. Colloidal quantum dots (CQDs) were dispensed using a calibrated pipette to deposit green quantum dots (GQDs) either directly on the device surface or beside the device mesa. In addition, quantum dot photoresist (QDPR) films were prepared.
The device performance was characterized by J–V measurements and external quantum efficiency (EQE). Experimental results show that direct GQD deposition on the device surface yields the most significant improvement, with the short-circuit current increased by approximately 5% and 12% for hollow and U-shaped devices, respectively. EQE analysis of different quantum dot concentrations and device sidewalls further confirms that surface deposition provides the optimal effect. Red and green QDPR films were also prepared, and the color conversion efficiency (CCE) under blue and UV illumination was calculated. The results demonstrate that the quantum dot materials can enhance light absorption and carrier collection the luminescent downshifting (LDS) effect, converting high-energy photons into photons suitable for GaAs absorption. The impact of placing the films beside the device mesa on J–V characteristics was also evaluated. Overall, this study demonstrates that integrating geometrical design with quantum dot materials can effectively enhance the photovoltaic performance of GaAs solar cells and provides valuable guidance for the design of high-efficiency solar cells. | en |
| dc.description.provenance | Submitted by admin ntu (admin@lib.ntu.edu.tw) on 2026-02-26T17:00:50Z No. of bitstreams: 0 | en |
| dc.description.provenance | Made available in DSpace on 2026-02-26T17:00:50Z (GMT). No. of bitstreams: 0 | en |
| dc.description.tableofcontents | 致謝 I
摘要 II ABSTRACT III CONTENT V LIST OF FIGURE VIII LIST OF TABLE XI CHAPTER1 INTRODUCTION 1 1.1 HISTORY OF SOLAR CELLS 1 1.2 GALLIUM ARSENIDE SOLAR CELL 2 1.3 QUANTUM DOTS 3 1.4 MOTIVATION 4 CHAPTER2 WORKING PRINCIPLE AND INDEX OF SOLAR CELL 5 2.1 PHYSICS OF SOLAR CELLS 5 2.2 EQUIVALENT CIRCUIT OF SOLAR CELLS 6 2.3 PARAMETERS OF SOLAR CELLS 7 2.3.1 Open- Circuit Voltage 7 2.3.2 Short- Circuit Current 8 2.3.3 Filter Factor 8 2.3.4 Conversation Efficiency 9 2.3.5 External Quantum Efficiency 9 2.3.6 Dark Current 9 2.4 LUMINESCENT DOWN- SHIFTING 10 2.4 PAPER REVIEW 10 2.4.1 Effect of Luminescent Coupling on the Optimal Design of Multijunction Solar Cells 10 2.4.2 Quantum Dot Luminescent Concentrator Cavity Exhibiting 30-fold 11 2.4.3 A Highly Efficient Hybrid GaAs Solar Cell Based on Colloidal-Quantum-Dot-Sensitization 13 CHAPTER3 EXPERIMENT PROCESS AND MEASUREMENT SET UP 15 3.1 PROCESS FLOW OF GAAS SOLAR CELL 15 3.2 SOLAR CELL WITH QDS 17 3.3 EXPERIMENTAL INSTRUMENT 17 3.3.1 Spin Coater 17 3.3.2 Mask Aligner 18 3.3.3 Surface Profiler 19 3.3.4 Inductively Coupled Plasma Reactive Ion Etcher 20 3.3.5 E-beam Evaporator and Thermal Evaporator 20 3.3.6 Plasma Enhanced Chemical Vapor Deposition (PECVD) 21 3.3.7 Atomic Layer Deposition 22 3.3.8 Solar Simulator 23 CHAPTER4 ANALYSIS OF SOLAR CELL 24 4.1 SMALL- AREA SOLAR CELL 24 4.1.1 Dark Current 24 4.1.2 J-V Curve 25 4.2 LARGE- AREA SOLAR CELL 28 4.2.1 P/ A Ratio 28 4.2.2 Passivation Layer 30 4.2.3 J-V Curve 31 4.3 SOLAR CELL WITH QDS 33 4.3.1 J-V Curve 33 4.3.2 EQE 36 CHAPTER5 SOLAR CELL WITH QDPR 42 5.1 QUANTUM DOT PHOTORESIST FILM 42 5.1.1 Color Conversion Efficiency 43 5.1.2 Reflectance and Transmittance 44 5.2 SOLAR CELL WITH QDPR 45 CHAPTER6 CONCLUSION AND FUTURE WORK 47 6.1 CONCLUSION 47 6.2 FUTURE WORK 48 REFERENCE 49 | - |
| dc.language.iso | en | - |
| dc.subject | 太陽能電池 | - |
| dc.subject | 砷化鎵太陽能電池 | - |
| dc.subject | 大面積砷化鎵陽能電池 | - |
| dc.subject | LDS效應 | - |
| dc.subject | 膠體量子點 | - |
| dc.subject | solar cell | - |
| dc.subject | GaAs solar cell | - |
| dc.subject | large-area GaAs solar cell | - |
| dc.subject | LDS effect | - |
| dc.subject | colloidal quantum dots | - |
| dc.title | 膠體量子點對於大面積砷化鎵太陽能電池之影響及應用 | zh_TW |
| dc.title | The Application and Effects of Colloidal Quantum Dots on the Large- Area GaAs-based Solar Cell | en |
| dc.type | Thesis | - |
| dc.date.schoolyear | 114-1 | - |
| dc.description.degree | 碩士 | - |
| dc.contributor.oralexamcommittee | 黃建璋;施閔雄 | zh_TW |
| dc.contributor.oralexamcommittee | Jian-Jang Huang;Min-Hsiung Shih | en |
| dc.subject.keyword | 太陽能電池,砷化鎵太陽能電池大面積砷化鎵陽能電池LDS效應膠體量子點 | zh_TW |
| dc.subject.keyword | solar cell,GaAs solar celllarge-area GaAs solar cellLDS effectcolloidal quantum dots | en |
| dc.relation.page | 51 | - |
| dc.identifier.doi | 10.6342/NTU202600163 | - |
| dc.rights.note | 未授權 | - |
| dc.date.accepted | 2026-01-21 | - |
| 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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