Fabrication and optical properties of CuS nanowires by sulfuring method

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• 作者：Yu Cheng Chen ; Jen Bin Shi ; Chien Wu ; Chih Jung Chen ; Ya Ting Lin ; Po Feng Wu
• 关键词：Nanomaterials ; CuS nanowires ; Sulfuring ; Optical materials and properties
• 刊名：Materials Letters
• 出版年：2008
• 期刊代码：59_0167577x
• 类别：ms
• 出版时间：31 March 2008
• 卷：62
• 期：8-9
• 页码：1421-1423
• 文件大小：645 K

摘要

In this letter, we successfully synthesize Cu_xS nanowires by sulfuring the copper nanowires at varied temperatures. When the annealing temperatures reach 400, 450, and 500 °C, the x values are equal to 1.03, 1.26, and 1.43, respectively. The Cu_xS nanowire arrays are highly ordered and have high wire packing densities. At 400 °C sulfured temperature, the CuS nanowire phase with a strongly preferential peak [110] indicates that the nanowire arrays should point to the [110] direction. The UV–vis spectroscopy measurement shows only one broad absorption peak that appears at 802 nm in near-IR region. This proves that the sulfured nanowire has pure CuS phase.