Rapid Single-Stage Separation of Micrometer-Long and High-Purity Semiconducting Carbon Nanotubes by Gel Filtration
Rapid Single-Stage Separation of Micrometer-Long and High-Purity Semiconducting Carbon Nanotubes by Gel Filtration
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DOI：
10.7567/apex.6.065101
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发表时间：
2013-05
影响因子：
2.3
通讯作者：
Boanerges Thendie;Y. Miyata;R. Kitaura;Y. Miyauchi;K. Matsuda;H. Shinohara
中科院分区：
文献类型：
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作者：
Boanerges Thendie;Y. Miyata;R. Kitaura;Y. Miyauchi;K. Matsuda;H. Shinohara
我们证明了高纯度，长半导体单壁碳纳米管（s-SWCNTs）的单级凝胶过滤分离。半导体单壁碳纳米管优先吸附在烯丙基葡聚糖为基础的凝胶柱，然后用表面活性剂溶液洗脱的速率取决于纳米管的长度以及电子类型的纳米管。这些差异允许通过分级收集碳纳米管来分离长度分选和纯度增强的s-SWCNT，这为电子器件应用提供了所需的纳米管。
We demonstrate the separation of high-purity, long semiconducting single-wall carbon nanotubes (s-SWCNTs) by single-stage gel filtration. Semiconducting SWCNTs are preferentially adsorbed on an allyl dextran-based gel column and then eluted with surfactant solution at a rate that depends on nanotube length as well as electronic type of nanotubes. These differences allow the separation of length-sorted and purity-enhanced s-SWCNTs by fractionated collection of the eluate, which provides the desired nanotubes for electronic device applications.