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Article: Optical characterizations and electronic devices of nearly pure (10,5) single-walled carbon nanotubes

TitleOptical characterizations and electronic devices of nearly pure (10,5) single-walled carbon nanotubes
Authors
Issue Date2009
Citation
Journal of the American Chemical Society, 2009, v. 131, n. 7, p. 2454-2455 How to Cite?
AbstractIt remains an elusive goal to achieve high-performance single-walled carbon nanotube (SWNT) field-effect transistors (FETs) composed of only single-chirality SWNTs. Many separation mechanisms have been devised and various degrees of separation demonstrated, yet it is still difficult to reach the goal of total fractionation of a given nanotube mixture into its singlechirality components. Chromatography has been reported to separate small SWNTs (diameter & 0.9 nm) according to their diameter, chirality, and length. The separation efficiency decreased with increasing tube diameter when the ssDNA sequence d(GT)n (n = 10-45) was used. Here we report our results on the separation of single-chirality (10,5) SWNTs (diameter = 1.03 nm) from HiPco tubes using ion-exchange chromatography. The separation efficiency was improved by using the new DNA sequence (TTTA)3T, which can recognize SWNTs with the specific chirality (10,5). The chirality of the separated tubes was examined by optical absorption, Raman, photoluminescence excitation/emission, and electrical transport measurements. All of the spectroscopic methods gave a single peak of (10,5) tubes. The purity was 99% according to the electrical measurement. The FETs composed of separated SWNTs in parallel gave an Ion/Ioff ratio up to 106 due to the single-chirality-enriched (10,5) tubes. This is the first time that SWNT FETs with single-chirality SWNTs have been achieved. The chromatography method has the potential to separate even larger diameter semiconducting SWNTs from other starting materials to further improve the performance of the SWNT FETs. © 2009 American Chemical Society.
Persistent Identifierhttp://hdl.handle.net/10722/334200
ISSN
2023 Impact Factor: 14.4
2023 SCImago Journal Rankings: 5.489
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorZhang, Li-
dc.contributor.authorTu, Xiaomin-
dc.contributor.authorWelsher, Kevin-
dc.contributor.authorWang, Xinran-
dc.contributor.authorZheng, Ming-
dc.contributor.authorDai, Hongjie-
dc.date.accessioned2023-10-20T06:46:26Z-
dc.date.available2023-10-20T06:46:26Z-
dc.date.issued2009-
dc.identifier.citationJournal of the American Chemical Society, 2009, v. 131, n. 7, p. 2454-2455-
dc.identifier.issn0002-7863-
dc.identifier.urihttp://hdl.handle.net/10722/334200-
dc.description.abstractIt remains an elusive goal to achieve high-performance single-walled carbon nanotube (SWNT) field-effect transistors (FETs) composed of only single-chirality SWNTs. Many separation mechanisms have been devised and various degrees of separation demonstrated, yet it is still difficult to reach the goal of total fractionation of a given nanotube mixture into its singlechirality components. Chromatography has been reported to separate small SWNTs (diameter & 0.9 nm) according to their diameter, chirality, and length. The separation efficiency decreased with increasing tube diameter when the ssDNA sequence d(GT)n (n = 10-45) was used. Here we report our results on the separation of single-chirality (10,5) SWNTs (diameter = 1.03 nm) from HiPco tubes using ion-exchange chromatography. The separation efficiency was improved by using the new DNA sequence (TTTA)3T, which can recognize SWNTs with the specific chirality (10,5). The chirality of the separated tubes was examined by optical absorption, Raman, photoluminescence excitation/emission, and electrical transport measurements. All of the spectroscopic methods gave a single peak of (10,5) tubes. The purity was 99% according to the electrical measurement. The FETs composed of separated SWNTs in parallel gave an Ion/Ioff ratio up to 106 due to the single-chirality-enriched (10,5) tubes. This is the first time that SWNT FETs with single-chirality SWNTs have been achieved. The chromatography method has the potential to separate even larger diameter semiconducting SWNTs from other starting materials to further improve the performance of the SWNT FETs. © 2009 American Chemical Society.-
dc.languageeng-
dc.relation.ispartofJournal of the American Chemical Society-
dc.titleOptical characterizations and electronic devices of nearly pure (10,5) single-walled carbon nanotubes-
dc.typeArticle-
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1021/ja8096674-
dc.identifier.pmid19193007-
dc.identifier.scopuseid_2-s2.0-67749133706-
dc.identifier.volume131-
dc.identifier.issue7-
dc.identifier.spage2454-
dc.identifier.epage2455-
dc.identifier.isiWOS:000263576100018-

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