Journal
NANO RESEARCH
Volume 9, Issue 8, Pages 2478-2486Publisher
TSINGHUA UNIV PRESS
DOI: 10.1007/s12274-016-1134-6
Keywords
single wall carbon nanotube (SWNT); sorting; optical properties; field effect transistors
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Funding
- European Union [FP7-618025]
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Single wall carbon nanotubes (SWNTs) are known for their exceptional electronic properties. However, most of the synthesis methods lead to the production of a mixture of carbon nanotubes having different chiralities associated with metallic (m-SWNTs) and semiconducting (s-SWNTs) characteristics. For application purposes, effective methods for separating these species are highly desired. Here, we report a protocol for achieving a highly selective separation of s-SWNTs that exhibit a fundamental optical transition centered at 1,550 nm. We employ a polymer assisted sorting approach, and the influence of preparation methods on the optical and transport performances of the separated nanotubes is analyzed. As even traces of m-SWNTs can critically affect performances, we aim to produce samples that do not contain any detectable fraction of residual m-SWNTs.
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