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.
Highly selective sorting of semiconducting single wall carbon nanotubes exhibiting light emission at telecom wavelengths / Sarti, Francesco; Biccari, Francesco; Fioravanti, Federica; Torrini, Ughetta; Vinattieri, Anna; Derycke, Vincent; Gurioli, Massimo; Filoramo, Arianna. - In: NANO RESEARCH. - ISSN 1998-0124. - STAMPA. - 9:(2016), pp. 2478-2486. [10.1007/s12274-016-1134-6]
Highly selective sorting of semiconducting single wall carbon nanotubes exhibiting light emission at telecom wavelengths
SARTI, FRANCESCO;BICCARI, FRANCESCO;VINATTIERI, ANNA;GURIOLI, MASSIMO;
2016
Abstract
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.File | Dimensione | Formato | |
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