奈米銀沉澱-蝕刻二段式製作陣列矽奈米線之研究

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姓名

黃以鈞(Yi-Chun Huang) 查詢紙本館藏

畢業系所

機械工程學系

論文名稱

奈米銀沉澱-蝕刻二段式製作陣列矽奈米線之研究
(The study of fabricating silicon nanowire arrays with nano-sliver particle and two-step method)

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摘要(中)

矽奈米線陣列之尺度能降低入射光因介質折射率不同所生成之反射，故其擁有良好的抗反射能力。因此在太陽能相關的設備上可以看到矽奈米線的應用，而另一方面奈米線陣列間大量的空隙，可讓奈米線陣列吸附氣體分子，因此也適合應用於氣體感測元件。不過，奈米線陣列有製作時分佈均勻性不足、設備昂貴等缺點。因此本研究的重點是降低奈米線陣列的生產成本與其良率之提升。本研究運用濕式化學蝕刻法運用NaBH4還原奈米銀並控制其形貌並沉積於矽基板上，最後再放入HF/H2O2中進行蝕刻。實驗中利用改變沉積方式、沉積與蝕刻分步進行，明顯改善金屬輔助蝕刻不均的問題，此想法明顯降低銀金屬因為團聚或是反應時液體擾動所造成的局部金屬輔助蝕刻，提升了矽奈米線整體蝕刻的均勻度。實驗結果證明此法所製之奈米柱陣列擁有比傳統濕式蝕刻更良好的均勻性。

摘要(英)

The anti-reflection ability of silicon nanowire (SiNW) arrays are remarkable because the distance between SiNWs is similar to the wavelength of visible light, which can lower the incident light reflection caused by different visible medium. Nowadays, SiNW arrays are applied in solar Industry. There is lots of space between SiNW arrays. These structure can capture much more air. Although SiNW arrays come in many advantages, they are still limited by uniformity, and expensive equipment. This study is focus on how to lower the cost and promote the yield of the process. In this study, wet metal-assisted chemical etching is used to lower the cost. At the mean time, NaBH4 is used to control the surface morphology of sliver nanoparticles and they are deposed on the silicon substrate. Finally, the sliver deposed substrate is put into HF/H2O2 etching solution. There is a different depose method in this experiment. Using nano sliver particle and two-step etching process has lower the disturbance in etching solution. This method can make SiNW arrays can be more order than traditional wet metal-assisted chemical etching.

關鍵字(中)

★ 矽奈米柱
★ 金屬輔助蝕刻
★ 奈米銀

關鍵字(英)

論文目次

摘要 I
ABSTRACT II
誌謝 III
圖目錄 VII
表目錄 X
第一章緒論 1
1.1前言 1
1.2研究動機與目的 2
第二章原理與文獻回顧 4
2.1 矽奈米柱陣列 4
2.2奈米線製作方法 5
2.2.1化學氣象沉積 (CVD) 5
2.2.2氣-液-固生長（VLS) 6
2.2.3氧化物輔助生長法（OAG） 8
2.2.4金屬輔助化學蝕刻法（MACE） 9
2.3奈米材料 12
2.3.1表面效應 12
2.3.2小尺寸效應 13
2.3.3量子尺寸效應 14
2.3.4奈米粒子製備方法 15
2.4銀金屬介紹 18
2.4.1奈米銀 18
第三章實驗原理與實驗步驟 20
3.1實驗材料與器材 20
3.2分析儀器介紹 22
3.3實驗原理與方法 24
3.4實驗步驟 28
3.4.1矽晶圓清洗 29
3.4.2奈米銀配製 29
3.4.3金屬輔助蝕刻製作矽奈米柱 30
第四章結果與討論 32
4.1不同沉積時間銀奈米粒子形貌的探討 32
4.2奈米銀沉積製作矽奈米柱 33
4.3奈米柱長短與接觸角的關係 35
第五章結論 52
第六章參考文獻 54

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指導教授

李天錫(Tien-Hsi Lee)

審核日期

2016-6-16

推文