本論文主要利用化學溶液法來製備奈米銀粒子或奈米銀線。我們使用多元醇法還原硝酸銀前驅物來製備奈米銀線，討論不同的反應溫度、反應時間、反應添加物用量、及使用離子液體種類的影響。最後，我們也將奈米銀線產物應用於表徵染料的表面增強拉曼訊號。奈米銀線的製備方式為利用離子液體添加物當作起始物與硝酸銀產生成核晶種， PVP當軟模板及介面活性劑，輔助銀成長出一維結構。 在實驗過程中，我們改變許多參數，追踪奈米銀粒子或奈米銀線的成長情況，並輔以SEM及TEM，分析了解更細微的結構、使用EDS檢驗奈米銀粒子或奈米銀線的元素成分、利用UV-Vis檢驗奈米銀型態不同的吸收峰訊，也利用粒徑分析儀確認粒徑分佈。實驗結果得知，以[BMIm]Br離子液體當做添加物時，反應1小時後，奈米銀線反應產率最佳，線徑約100~150 nm，線長約20 μm。以[BzMIm]Br離子液體當作添加物時，雖然對奈米銀線的反應產率不佳，但在180 ℃反應10~15 min即可快速產生奈米銀線，線徑約70~100 nm，線長10~20 μm。 One-dimensional Ag nanowires or Ag nanoparticles were prepared by polyol method in this study. The effects due to reaction temperature, reaction time, amount of ionic liquid additives, and the nature of ionic liquids were investigated. One of the final products was then applied to a SERS (Surface-enhanced raman signals) study on Nile blue chloride. In the beginning, the ionic liquid reaction with silver nitrate produced precipitates that work as nucleation seeds. We used PVP as a soft template to stablize the growth of one-dimensional Ag nanowires. In the experiments, we have changed a number of parameters to monitor the growth of Ag nanoparticles and Ag nanowires. We have also followed the growth with SEM or TEM analyses to know more subtle structures. EDS equipped on SEM or TEM was used to analyze the wire or particle compostion. The UV-Vis data indicated different absorption maxima to reveal the types of Ag nanomaterial. The essay pointed out that, when [BMIm]Br was an additive, the reaction of 1h resulted in Ag nanowires with maxium yield, the diameter being about 100~150 nm, length about 20 μm. Although [BzMIm]Br as an additive showed poor yield of Ag nanowires, it however gave rapidly at 180 ℃ in 10 to 15 minutes, Ag nanowires with diameter about 70~100 nm, length about 10~20 μm.
