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研究生：	吳玟翰 Wu, Wen-Han
論文名稱：	無模板成長奈米銀線之合成與機制 Synthesis and Mechanism of Template-free Growth of Silver Nanowires
指導教授：	許聯崇 Hsu, Lien-Chung
學位類別：	碩士 Master
系所名稱：	工學院 - 材料科學及工程學系 Department of Materials Science and Engineering
論文出版年：	2013
畢業學年度：	101
語文別：	中文
論文頁數：	78
中文關鍵詞：	硝酸銀、奈米銀線、聚乙烯吡咯烷酮、多元醇合成法、注射、模式
外文關鍵詞：	Silver nitrate, Silver nanowires, Poly(vinyl pyrrolidone), polyol process, syringing, model
相關次數：	點閱：110 下載：2
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在本研究中，使用一步驟的方式，以硝酸銀為前趨物，聚乙烯吡咯烷酮(poly(vinyl pyrrolidone), PVP)為保護劑，乙二醇為還原劑，在不含氯離子的狀態下，將奈米銀線合成出來。硝酸銀與PVP的添加將以注射的方式控制。藉由調控進料速度與硝酸銀濃度及PVP濃度，我們可以獲得不同寬度與長度的奈米銀線。我們還觀察到在銀線的成長過程中，有粗化及銀棒兼併的現象。由這些現象，我們試著去發展奈米銀線的成長模式。接著，我們藉由這個模式的概念，成功地製備出高深寬比的奈米銀線。最後，我們利用奈米銀線去製作透明導電薄膜，並測試其片電阻值及透光度(300 nm ~ 800 nm)。

In this study, silver nanowires were synthesized in a one–pot method from silver nitrate and poly(vinyl pyrrolidone), PVP, reduced by ethylene glycol without the presence of chloride ion. The addition of silver nitrate and PVP was controlled by the syringe. The syringe rate and the concentrations of silver nitrate and PVP were manipulated to obtain silver nanowires with different widths and lengths. We have observed the phenomenon of coarsening and combination of silver nanorods during the growth of the silver nanowires. With these phenomena, we tried to develop a growth model of silver nanowires. Then, we successfully synthesized silver nanowires with high aspect ratios via the developed model. Finally, we used silver nanowires to fabricate transparent conductive thin films and measured their sheet resistance and transmitance (300 nm ~ 800 nm).

總目錄
中文摘要...................................................................................................I
英文摘要.................................................................................................II
致謝.........................................................................................................III
總目錄....................................................................................................IV
圖目錄..................................................................................................VIII
第一章	緒論.............................................................................................1
1-1	前言...........................................................................................1
1-2 研究動機與目的..........................................................................2
第二章	文獻回顧與原理......................................................................3
2-1 透明導電膜的發展及種類..........................................................3
2-1-1 氧化銦錫(ITO) ...................................................................4
2-1-2 氧化物替代品.....................................................................6
2-1-3 導電高分子.........................................................................8
2-1-4 金屬薄膜.............................................................................9
2-1-5 金屬線網...........................................................................10
2-2 奈米銀線合成的方式................................................................11
2-2-1 模板合成法.......................................................................11
2-2-2 光觸媒還原法...................................................................12
2-2-3 多元醇溶液合成法...........................................................13
2-3 奈米銀線製作透明導電膜的塗佈方法....................................22
2-3-1 澆鑄法(drop-casting) ........................................................22
2-3-2 刷塗法(brush-painting) ....................................................23
2-3-3 線棒塗佈法(wire bar coating) ..........................................24
2-3-4 噴塗法(spraying) ..............................................................25
2-3-5 轉印法(transferring) .........................................................27
2-4 奈米銀線的其他應用................................................................29
2-4-1 食品檢測-表面增強拉曼散射(surface-enhanced Raman scattering) ....................................................................................29
2-4-2 鹵素離子偵測...................................................................31
2-4-3 奈米光線路.......................................................................32
第三章	實驗方法與步驟....................................................................33
3-1 藥品與儀器................................................................................33
3-1-1 藥品...................................................................................33
3-1-2 儀器...................................................................................33
3-2 實驗流程....................................................................................35
3-2-1 奈米銀線的合成...............................................................35
3-2-1-1 硝酸銀溶液與PVP溶液的調配..............................35
3-2-1-2 注射硝酸銀溶液與PVP溶液..................................35
3-2-1-3 清洗奈米銀線..........................................................35
3-2-2 奈米銀線製備透明導電薄膜...........................................37
3-2-2-1 去除奈米顆粒..........................................................37
3-2-2-2 玻璃基板的表面處理..............................................37
3-2-2-3 澆鑄法製備透明導電薄膜......................................37
3-2-2-4 噴塗法法製備透明導電薄膜..................................38
3-3 銀線組成分析與形貌鑑定........................................................39
3-3-1 X光繞射分析 ( XRD ) .....................................................39
3-3-2 熱重分析儀 ( TGA ) ........................................................39
3-3-3 紫外-可見光吸收光譜分析( UV/VIS spectro – photometer ) ................................................................................39
3-3-4 場放射型掃描式電子顯微鏡 ( FE-SEM ) .....................40
3-3-5 能量分散光譜儀 ( Energy Dispersive spectrometer ) 分析..................................................................................................40
3-3-6 穿透式電子顯微鏡觀察 ( TEM ) ...................................40
3-4 透明導電薄膜性質與分析........................................................41
3-4-1 光學顯微鏡 ( OM ) .........................................................41
3-4-2 紫外-可見光穿透光譜分析( UV/VIS spectro – photometer ) ................................................................................41
3-4-3 四點探針 ( Four - point probe method ) .........................41
第四章	結果與討論.............................................................................42
4-1 以注射法製備無氯之銀線之研究............................................42
4-1-1 硝酸銀進料速度操縱之實驗...........................................42
4-1-2 硝酸銀溶液與PVP溶液之濃度等比例放大之實驗.......49
4-2 探討銀線的成長機制................................................................51
4-2-1 銀線初期之成長...............................................................51
4-2-2 銀線成長機制之模式.......................................................55
4-2-2-1 不含Cl-之銀線成長機制.........................................56
4-2-2-2 含Cl-之銀線成長機制.............................................60
4-2-3 根據成長機制製備高深寬比之銀線...............................62
4-3 透明導電薄膜製備及性質........................................................67
4-3-1 澆鑄法製備透明導電薄膜...............................................69
4-3-2 噴塗法製備透明導電薄膜...............................................72
第五章	結論...........................................................................................75
參考文獻................................................................................................76

                                    

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校內：2018-08-14公開
校外：不公開電子論文尚未授權公開，紙本請查館藏目錄

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