Semiconducting single‐walled carbon nanotube (s‐SWNT) arrays are produced via a procedure analogous to a surfactant‐assisted decontamination process. Aligned individual SWNT arrays grow on a quartz surface as a mixture of metallic SWNTs (m‐SWNTs) and s‐SWNTs. They are immersed in a sodium dodecyl sulfate (SDS) solution, and the SDS molecules selectively adsorb onto m‐SWNTs. This SDS coating minimizes the interaction between m‐SWNTs and the substrate, thus the m‐SWNTs are easily washed off during ultrasonication while the s‐SWNT arrays remain on the substrate. The percentage of s‐SWNTs in the arrays can be higher than 90%.

中文翻译：

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通过使用SDS水溶液冲洗金属管来分选半导体单壁碳纳米管阵列

半导体单壁碳纳米管（s-SWNT）阵列是通过类似于表面活性剂辅助去污工艺的程序生产的。对齐的单个SWNT阵列在石英表面上生长，是金属SWNT（m-SWNT）和s-SWNT的混合物。将它们浸入十二烷基硫酸钠（SDS）溶液中，然后SDS分子选择性吸附到m-SWNTs上。这种SDS涂层可最大程度地减少m-SWNT与底物之间的相互作用，因此在超声处理过程中，很容易将m-SWNT冲洗掉，而s-SWNT阵列仍保留在底物上。阵列中s‐SWNT的百分比可以高于90％。