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完整後設資料紀錄
DC 欄位 | 值 | 語言 |
---|---|---|
dc.contributor.advisor | 陳學禮 | |
dc.contributor.author | Yu-Wei Lee | en |
dc.contributor.author | 李祐維 | zh_TW |
dc.date.accessioned | 2021-06-16T09:26:58Z | - |
dc.date.available | 2020-06-12 | |
dc.date.copyright | 2017-06-12 | |
dc.date.issued | 2017 | |
dc.date.submitted | 2017-05-24 | |
dc.identifier.citation | 1 N. C. George, K. A. Denault, R. Seshadri; Phosphors for Solid-State White Lighting; Annual Review of Materials Research 43, 481-501 (2013).
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dc.identifier.uri | http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/59534 | - |
dc.description.abstract | 本論文將針對液態介質與奈米結構在光電元件相關的應用進行探討。其中一種為暖白光LED照明,另一種為拉曼光譜感測器,而目的皆為嘗試利用液態介質的高分散性與均勻性來達成高效率的應用,以及考慮其各自應用上的需求,設計出最佳化的奈米結構。
在暖光照明元件部分,我們將利用雷射染料在液態介質的高穩定性及高量子產率優勢,以其作為螢光轉換層,嘗試開發出暖白光照明的裝置,首先分析其吸收行為勝過許多其他應用於螢光轉換層的材料,再評估其作為螢光轉換層時,可達成的照明品質,研究中用了多種染料,探討其單一或同時使用時能達成的表現,亦探討了穩定度及發光效率等重要指標,發現其演色性表現最高可達91.2,並維持低於3000K的暖色表現,有相當潛力開發高照明品質的暖光照明元件。 此外,本論文也從奈米結構的角度著手,主要利用了奈米共振腔在寬波段的電場增益特性來開發寬波段的發光元件,並也利用同具增益效果的金屬奈米粒子來作比較,發現兩者皆可增益發光,而最佳化的奈米共振腔更可同時調控顏色來達成高照明品質,只需利用單一發光材料即可使一般光致發光元件難以提升的紅光品質有相當的提升,最後更探討了Tamm電漿膜堆結構具有突破奈米共振腔在此議題應用時限制的潛力。 在拉曼光譜感測器部份,不同於以往表面增強拉曼散射著重於測定乾掉之樣品,將以液態樣品作為應用目標,嘗試開發出最適合的高電場能量密度增益結構,並以具應用價值的微流道作為主要設計考量,分析並比較了多種奈米結構,最後發現V型凹槽結構針對景深而設計的空間搭配銀奈米粒子的高熱點,對R6G溶液的定量極限可達10-6M,偵測極限可達10-7M,在光點大小及景深範圍內的液體中只有約接近18個平均分子數,具有高再現性感測器的應用潛力。 | zh_TW |
dc.description.abstract | In this thesis, we study two types of optoelectronic application: one is warm white light-emitting diode (WLED) lighting and the other is Raman spectroscopy. In both of which, we take advantage of the high dispersion and uniformity of liquid medium for the purpose of high efficiency, and design the optimized nanostructures according to their requirements when being applied with.
In the first part, by taking advantage of the high stability and quantum yield of laser dyes in liquid medium, we tried to use them as the conversion layers so as to study the warm white lighting device. The absorptive properties were firstly studied and found that is better than many other photoluminescent materials, and the lighting quality was evaluated when making the laser dye solution as the conversion layers. Several types of dye were used either as individual or as mixed to explore the potential performance, and some important criterions such as stability and Luminous efficacy are also studied. The highest color-rendering index (CRI) potentially achieved is 91.2 when the correlated color temperature (CCT) is kept warm as 3000K below, which indicates its high potential for the development of high quality warm lighting device. In the second part, nanocavity was applied to study the device with broadband emission through the characteristics of high electric field in broad spectral regime, and metal nanoparticles for the enhancing effect were also studied for the comparison. Both of which are found to enhance the intensity of photoluminescence, and the optimized nanocavity can specifically tune the color to improve lighting quality simultaneously. It indicates that only one type of photoluminescent material is needed to improve the lighting quality of red, which is difficult to achieve in the previos literature. We also study the Tamm plasmonic structures to overcome the limitation of nanocavity, which is also a potential technique for the development of high quality warm lighting device. In the third part, in contrast to the previous surface-enhanced Raman spectroscopy (SERS) studies that primarily focused on the analysis of samples in dried state, we aim at the sample in liquid state and try to find out the most suitable nano-structure with high electric field intensity by considering the nano-fluidic channel-based design, which is a promising approach of application. We studied several types of nanostructures for comparison and found that the V-groove structure designed according to depth of focus (DOF) combined with silver nanoparticles (AgNPs) that have high density of hot spots can achieve the limit of quantification low as 10-6M and the limit of detection down to 10-7M, there are only ca. 18 moleculars in the effective detection area of liquid as considering the spot size and DOF of the system, which indicates the great potential to apply the liquid state sensor with high sensitivity and reproducibility. | en |
dc.description.provenance | Made available in DSpace on 2021-06-16T09:26:58Z (GMT). No. of bitstreams: 1 ntu-106-R03527076-1.pdf: 12042144 bytes, checksum: cdabe020cc65d6504fb7a4f0a6414674 (MD5) Previous issue date: 2017 | en |
dc.description.tableofcontents | 口試委員審定書 I
誌謝 II 摘要 IV Abstract VI 目錄 VIII 圖目錄 X 表目錄 XV 第1章 緒論 1 1.1 前言 1 1.2 論文架構 2 第2章 文獻回顧 3 2.1 發光二極體照明 3 2.1.1 白光照明之方式 3 2.1.2 白光發光二極體 (White Light Emitting Diode; WLED) 4 2.1.3 光致發光材料 7 2.1.4 雷射染料(Laser Dye) 10 2.1.5 光致發光的增益 12 2.2 表面增強拉曼散射 15 2.2.1 拉曼散射原理 15 2.2.2 表面增強拉曼散射之原理 16 2.2.3 表面增強拉曼散射之技術 18 2.2.4 針對液態樣品的表面增益拉曼散射之技術 24 第3章 以雷射染料開發液態暖白光照明裝置 29 3.1 研究動機與目的 29 3.2 研究方法 31 3.2.1 實驗藥品 31 3.2.2 實驗儀器 31 3.2.3 實驗步驟 32 3.3 實驗結果與討論 34 3.3.1 R6G以甲醇為溶劑之探討 34 3.3.2 R6G以乙醇/松油醇為溶劑之探討 45 3.3.3 RB以甲醇為溶劑之探討 52 3.3.4 RB以乙醇/松油醇為溶劑之探討 61 3.3.5 以多種雷射染料液體同時作為螢光轉換層之探討 69 3.3.6 效率與穩定性的探討 76 3.4 結論 81 第4章 利用奈米結構增益並調控雷射染料出光品質 82 4.1 研究動機與目的 82 4.2 研究方法 84 4.2.1 奈米共振腔原理 84 4.2.2 實驗藥品 85 4.2.3 實驗儀器 85 4.2.4 實驗步驟 86 4.3 實驗結果與討論 88 4.3.1 摻RB之PMMA光學性質之探討 88 4.3.2 奈米共振腔結構的最佳化模擬 91 4.3.3 奈米共振腔對RB PMMA之發光表現影響 98 4.3.4貴金屬奈米粒子對雷射染料之發光表現影響 106 4.3.5 探討以綠光LED激發之反射式白光照明的可能性 111 4.4 結論 124 第5章 開發針對液態樣品之高再現性拉曼增益結構 125 5-1 研究動機與目的 125 5.2 研究方法 127 5.2.1 二維V型溝槽與光柵結構產生表面電漿波之原理 127 5.2.2 實驗藥品 129 5.2.3 實驗儀器 129 5.2.3 實驗步驟 130 5.3 實驗結果與討論 132 5.3.1 以模擬分析各結構之電場能量密度 132 5.3.2 H06之V型溝槽結構結合銀膜或AgNPs之R6G拉曼光譜量測 156 5.4 結論 161 第6章 結論 162 6.1 研究總結 162 6.2 未來展望 164 參考文獻 165 | |
dc.language.iso | zh-TW | |
dc.title | 以液態介質與奈米結構應用於暖光照明及高再現性感測器之研究 | zh_TW |
dc.title | Applications of Liquid Medium and Nano-structures on Warm Lighting Device and Highly Reproducible Sensor | en |
dc.type | Thesis | |
dc.date.schoolyear | 105-2 | |
dc.description.degree | 碩士 | |
dc.contributor.oralexamcommittee | 柯富祥,劉旻忠,張育誠,李仰淳 | |
dc.subject.keyword | 暖白光照明,高演色性,低色溫,液態介質照明,奈米共振腔,寬波段發光,Tamm電漿,表面增強拉曼散射,液態介質拉曼散射增益,定量分析,高再現性,感測器, | zh_TW |
dc.subject.keyword | warm white lighting,high color rendering index,low correlated color temperature,liquid lighting,nanocavity,broad emission wavelength,Tamm Plasmon,surface-enhanced Raman spectroscopy,quantitative analysis,high reproducibility,sensor,V-groove, | en |
dc.relation.page | 172 | |
dc.identifier.doi | 10.6342/NTU201700844 | |
dc.rights.note | 有償授權 | |
dc.date.accepted | 2017-05-24 | |
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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