Structure and electronic states of single-wall carbon nanohorns prepared under nitrogen atmosphere
Nitrogen-doped single wall carbon nanohorns (N-SWCNHs) were prepared by CO2 laser ablation of a graphite target under nitrogen atmosphere. X-ray photoelectron spectra showed that the doped nitrogen quantities were about 1.7 and 1.1at.% under nitrogen and nitrogen/Ar mixed atmospheres, respectively....
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| Veröffentlicht in: | Carbon (New York) 2014-08, Vol.75, p.322-326 |
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| container_title | Carbon (New York) |
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| creator | Yuge, Ryota Bandow, Shunji Nakahara, Kentaro Yudasaka, Masako Toyama, Kiyohiko Yamaguchi, Takashi Iijima, Sumio Manako, Takashi |
| description | Nitrogen-doped single wall carbon nanohorns (N-SWCNHs) were prepared by CO2 laser ablation of a graphite target under nitrogen atmosphere. X-ray photoelectron spectra showed that the doped nitrogen quantities were about 1.7 and 1.1at.% under nitrogen and nitrogen/Ar mixed atmospheres, respectively. The nitrogen atoms were implicated as the pyridine-like and threefold coordinated sp2 bonding in graphene lattice of SWCNHs, and they were p-type dopants. The number of defect sites of N-SWCNHs was larger than that of SWCNHs prepared under Ar atmospheres, which was revealed by Raman and electron spin resonance measurements. |
| doi_str_mv | 10.1016/j.carbon.2014.04.010 |
| format | Article |
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X-ray photoelectron spectra showed that the doped nitrogen quantities were about 1.7 and 1.1at.% under nitrogen and nitrogen/Ar mixed atmospheres, respectively. The nitrogen atoms were implicated as the pyridine-like and threefold coordinated sp2 bonding in graphene lattice of SWCNHs, and they were p-type dopants. 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film growth and epitaxy</topic><topic>Methods of electronic structure calculations</topic><topic>Nanoscale materials and structures: fabrication and characterization</topic><topic>Nanostructure</topic><topic>Nanotubes</topic><topic>Nitrogen atoms</topic><topic>Physics</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Yuge, Ryota</creatorcontrib><creatorcontrib>Bandow, Shunji</creatorcontrib><creatorcontrib>Nakahara, Kentaro</creatorcontrib><creatorcontrib>Yudasaka, Masako</creatorcontrib><creatorcontrib>Toyama, Kiyohiko</creatorcontrib><creatorcontrib>Yamaguchi, Takashi</creatorcontrib><creatorcontrib>Iijima, Sumio</creatorcontrib><creatorcontrib>Manako, Takashi</creatorcontrib><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>Engineered Materials Abstracts</collection><collection>Technology Research Database</collection><collection>Materials Research Database</collection><jtitle>Carbon (New York)</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Yuge, Ryota</au><au>Bandow, Shunji</au><au>Nakahara, Kentaro</au><au>Yudasaka, Masako</au><au>Toyama, Kiyohiko</au><au>Yamaguchi, Takashi</au><au>Iijima, Sumio</au><au>Manako, Takashi</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Structure and electronic states of single-wall carbon nanohorns prepared under nitrogen atmosphere</atitle><jtitle>Carbon (New York)</jtitle><date>2014-08-01</date><risdate>2014</risdate><volume>75</volume><spage>322</spage><epage>326</epage><pages>322-326</pages><issn>0008-6223</issn><eissn>1873-3891</eissn><coden>CRBNAH</coden><abstract>Nitrogen-doped single wall carbon nanohorns (N-SWCNHs) were prepared by CO2 laser ablation of a graphite target under nitrogen atmosphere. 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| subjects | Ablation Atmospheres Carbon Carbon dioxide lasers Condensed matter: electronic structure, electrical, magnetic, and optical properties Cross-disciplinary physics: materials science rheology Electron paramagnetic resonance Electron paramagnetic resonance and relaxation Electron states Exact sciences and technology Graphene Laser deposition Magnetic resonances and relaxations in condensed matter, mössbauer effect Materials science Methods of deposition of films and coatings film growth and epitaxy Methods of electronic structure calculations Nanoscale materials and structures: fabrication and characterization Nanostructure Nanotubes Nitrogen atoms Physics |
| title | Structure and electronic states of single-wall carbon nanohorns prepared under nitrogen atmosphere |
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