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http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/66712完整後設資料紀錄
| DC 欄位 | 值 | 語言 |
|---|---|---|
| dc.contributor.advisor | 陳學禮 | |
| dc.contributor.author | Yu-Syuan Lin | en |
| dc.contributor.author | 林禹萱 | zh_TW |
| dc.date.accessioned | 2021-06-17T00:52:55Z | - |
| dc.date.available | 2021-10-20 | |
| dc.date.copyright | 2012-01-17 | |
| dc.date.issued | 2011 | |
| dc.date.submitted | 2011-10-20 | |
| dc.identifier.citation | 參考文獻
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| dc.identifier.uri | http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/66712 | - |
| dc.description.abstract | 表面增強拉曼散射技術因為能有效偵測低濃度的分子，因此許多研究都致力於研究不同的金屬奈米結構，希望能再大幅提升其偵測的靈敏度，甚至達到單分子的偵測能力。但製作特殊結構通常費時又耗成本，且測量的再現性低。在本篇論文第一部分中，我們透過三維時域有限差分(three dimensional finite-difference time-domain, 3D FDTD)模擬討論在不同覆蓋面積以及不同直徑的金奈米粒子局部電場以及預期的表面拉曼增強效果並透過實驗加以印證，比較熱點個數及熱點強度對拉曼訊號的影響。在本篇論文第二部分，我們將利用晶種成長法(seed-mediated growth)製作金屬奈米棒狀粒子，並使用高分子先將金的奈米球接在矽基板上，再利用具有適當官能基的高分子，兩端各抓住金奈米棒及金奈米球，使得在金奈米球上方再形成金奈米棒層。利用橢圓儀量測的方法，觀察金奈米球與金奈米棒之間是否有出現耦合的現象，並同時利用建構光學多層膜模型來進行分析，考慮各層的光學常數及厚度，依照正確的順序建立，再藉由多次最小方差法最佳化，調整未知的光學常數或厚度參數，將此金屬奈米粒子層的光學常數求出。並進一步利用金奈米棒的高靈敏度，製作生物分子感測器，並透過橢圓儀對薄膜量測的高敏感度，希望得到偵測低濃度生物分子的光電生化感測器。 | zh_TW |
| dc.description.abstract | Surface-enhanced Raman scattering technique can detect molecules of low concentrations, so many groups are dedicated to study different metallic nanostructures and hope to improve the sensitivity even to single-molecule level. However, it is time-consuming and high-cost to manufacture the special structure and the detection usually performs poor repeatability. In the first part of this thesis, we use the FDTD method to simulate the localized electronic field and expected surface enhanced Raman scattering effect of gold nanospheres under different area coverage and diameters. Besides, we use design experiment to prove the results from related simulations, which compares the effect of hot spots’ numbers and intensity on the SERS signal. In the second part of this thesis, we use seed-mediated growth method to synthesize the gold nanorods. And we first place the gold nanospheres on the silicon substrate by binding agent. Then, we use polymer with appropriate end functional group to form nanorods layers on top the gold nanospheres layer. By ellipseometric measurement, we can observe the electromagnetic coupling between the gold nanospheres and the nanorods. We construct the multilayer optical thin film model to fit the optical constant. Furthermore, we take advantages of the high-sensitivity of gold nanorods to produce the bio-sensor and detect the molecules by ellipsometric measurement, and hope to obtain an optoelectronic bio-sensor with high sensitivity. | en |
| dc.description.provenance | Made available in DSpace on 2021-06-17T00:52:55Z (GMT). No. of bitstreams: 1 ntu-100-R98527028-1.pdf: 2821224 bytes, checksum: b1e0bfcdd185faa1c00fafa407bb0f24 (MD5) Previous issue date: 2011 | en |
| dc.description.tableofcontents | 目錄
第一章 緒論 1 1.1前言 1 1.2 論文結構 2 第二章 文獻回顧 3 2.1奈米粒子合成方法以及相關性質 3 2.1.1 局域化表面電漿子共振 (localized surface plasma resonance) 3 2.1.2 利用橢圓儀量測金屬奈米粒子陣列之光學常數 7 2.2奈米粒子製造 10 2.3表面增強拉曼光譜 12 2.3.1表面增強拉曼散射 ( surface-enhanced Raman scattering ) 12 2.3.2表面增強拉曼散射技術 13 2.3.3應用奈米金屬粒子於表面增強拉曼散射技術 18 第三章 金屬奈米粒子在表面增強拉曼散射的應用 22 3.1前言 22 3.2實驗方法 24 3.3實驗結果與討論 25 3.3.1不同直徑單一粒子的電場分布圖 25 3.3.2不同覆蓋面積及不同直徑大小的金奈米金奈米粒子群的表面電漿共振波段 27 3.3.3入射光為表面電漿共振波段時相同覆蓋面積下不同直徑大小的比較 33 3.3.4入射光為表面電漿共振波段時相同直徑時不同覆蓋面積的比較 45 3.3.5入射光為633奈米時相同覆蓋面積下不同直徑大小的比較 47 3.3.6表面增強拉曼光譜 56 3.4結論 70 第四章 金屬奈米粒子在生物感測器的應用 71 4.1前言 71 4.2實驗方法 73 4.3實驗結果與討論 75 4.3.1利用晶種成長法合成金奈米棒狀粒子 75 4.3.2將帶正電的金奈米粒子接著於硬質基板 78 4.3.3不同密度的金奈米棒的橢圓儀參數 80 4.3.4利用橢圓儀偵測分子濃度的變化 85 4.4結論 89 第五章 結論 90 5.1實驗總結 90 5.2未來展望 91 參考文獻 92 | |
| dc.language.iso | zh-TW | |
| dc.subject | 三維時域有限差分 | zh_TW |
| dc.subject | 表面增強拉曼散射技術 | zh_TW |
| dc.subject | 晶種成長法 | zh_TW |
| dc.subject | 金屬奈米粒子 | zh_TW |
| dc.subject | 橢圓儀 | zh_TW |
| dc.subject | Surface-enhanced Raman scattering | en |
| dc.subject | three dimensional finite-difference time-domain | en |
| dc.subject | seed-mediated growth | en |
| dc.subject | ellipseometric | en |
| dc.subject | metallic nanoparticles | en |
| dc.title | 金屬奈米粒子陣列在表面增強拉曼散射與光電生化感測器上之應用 | zh_TW |
| dc.title | Applications of Metallic Nanoparticles on Surface-Enhanced Raman Scattering and Bio-sensor | en |
| dc.type | Thesis | |
| dc.date.schoolyear | 100-1 | |
| dc.description.degree | 碩士 | |
| dc.contributor.oralexamcommittee | 劉福鯤,林明瑜,賴宇紳 | |
| dc.subject.keyword | 表面增強拉曼散射技術,三維時域有限差分,晶種成長法,橢圓儀,金屬奈米粒子, | zh_TW |
| dc.subject.keyword | Surface-enhanced Raman scattering,three dimensional finite-difference time-domain,seed-mediated growth,ellipseometric,metallic nanoparticles, | en |
| dc.relation.page | 95 | |
| dc.rights.note | 有償授權 | |
| dc.date.accepted | 2011-10-20 | |
| dc.contributor.author-college | 工學院 | zh_TW |
| dc.contributor.author-dept | 材料科學與工程學研究所 | zh_TW |
| 顯示於系所單位： | 材料科學與工程學系 | |
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