2005 Fiscal Year Final Research Report Summary
Syntheses of Novel Metallofullerene Nano-Peapods
| Project/Area Number |
16350071
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Functional materials chemistry
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| Research Institution | Nagoya University |
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Principal Investigator |
SHINOHARA Hisanori Nagoya University, Department of Chemistry, Professor, 大学院・理学研究科, 教授 (50132725)
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| Co-Investigator(Kenkyū-buntansha) |
SUGAI Toshiki Nagoya University, Research Center for Materials Science, Research Associate, 物質科学国際研究センター, 助手 (50262845)
KITAURA Ryo Nagoya University, Department of Chemistry, Research Associate, 大学院・理学研究科, 助手 (50394903)
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| Project Period (FY) |
2004 – 2005
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| Keywords | nao-peapods / metallofullerenes / band gap modulation / FET / ambipolar FET / TEM / STM / STS / carbon nanotubes |
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| Research Abstract |
One of the fascinating features of metallofullerene-peapods such as Gd@C_<82>, Ce@C_<82> and Ti@C_<82> peapods is that one can perform a 'local band gap engineering' at the site where metallofullerenes are endothermally inserted. TEM and STM images together with electron energy loss spectra have suggested that the metallofullerenes can be spaced regularly as close as 1.1nm in a high-density 'peapod' structure, while 1.1-3nm spacing has often been observed in a low-density peapod. About 10% of over 200 SWNT images showed locally modified semiconducting band gaps. We found that the synthetic yield of metallofullerene peapods varies considerably from one fullerene to another.
In many cases, these nano-peapods have found to exhibit structural and electronic properties which are not normally observed in conventional carbon nanotubes. The novelty in electronic structure for the peapods comes mainly from hole or electron doping to the nanotubes from the encaged molecules.
Furthermore, metallofullerene-peapods have exhibited ambipolar FET behavior with both n- and p-channels easily accessible by simple electrostatic gates. Similar results were obtained from more than 10 independent devices composed of a small bundle of metallofullerene peapods. Because the encaged metallofullerenes provide 2-6 electrons to the carbon nanotubes (electron-doping), the electronic transport properties of these peapods can drastically be altered with respect to the intact nanotubes.
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Research Products
(122 results)
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[Journal Article] Tunable Field Effect Transistor Device with Metallofullerene Nanopeapods2005
Author(s)
T.Shimada, Y.Ohno, K.Suenaga, T.Okazaki, S.Kishimoto, T.Mizutani, R.Taniguchi, H.Kato, B.Cao, T.Sugai, H.Shinohara
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Journal Title
Jpn.J.Appl.Phys. 44
Pages: 469-472
Description
「研究成果報告書概要(欧文)」より
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[Journal Article] Synthesis of Carnon Nanotube Peapods Directly on Si Substrate2005
Author(s)
Y.Ohno, Y.Kurokawa, S.Kishimoto, T.Mizutani, T.Shimada, M.Ishida, T.Okazaki, H.Shinohara, Y.Murakami, S.Murayama, A.Sakai, K.Hiraga
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Journal Title
Appl.Phys.Lett. 86
Pages: 023109-1-023109-3
Description
「研究成果報告書概要(欧文)」より
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[Journal Article] Origin of the 2,450cm^<-1> Raman Bands in HOPG, Single-Wall and Double-Wall Carbon Nanotubes2005
Author(s)
T.Shimada, T.Sugai, C.Fantini, M.Souza, L.G.Cancado, A.Jorio, M.A.Pimenta, R.Saito, A.Grueneis, G.Dresselhaus, M.S.Dresselhaus, Y.Ohno, T.Mizutani, H.Shinohara
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Journal Title
Carbon 43
Pages: 1049-1054
Description
「研究成果報告書概要(欧文)」より
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[Journal Article] A femtosecond laser study of the endohedral fullerenes Li@C_<60> and La@C_<82>2005
Author(s)
A.Lassesson, K.Hansen, M.Johnsson, A.Gromov, E.E.B.Campbell, M.Boyle, D.Pop, C.P.Schulz, I.V.Hertel, A.Taninaka, H.Shinohara
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Journal Title
Euro.Phys.J.D 34
Pages: 205-209
Description
「研究成果報告書概要(欧文)」より
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[Journal Article] Uniform Carbon-Nanotube Emitter for Field-Emission Displays2005
Author(s)
H.Kurachi, S.Uemura, J.Yotani, T.Nagasako, H.Yamada, T.Ezaki, T.Maesoba, T.Nakao, M.Ito, A.Sakurai, Y.Saito, H.Shinohara
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Journal Title
J.SID 13/9
Pages: 727-733
Description
「研究成果報告書概要(欧文)」より
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[Journal Article] Transport Properties of C_<78>, C_<90> and Dy@C_<82> Fullerenes-Nanopeapods by Field-Effect Transistors2004
Author(s)
T.Shimada, Y.Ohno, T.Okazaki, T.Sugai, K.Suenaga, S.Kishimoto, T.Mizutani, T.Inoue, R.Taniguchi, N.Fukui, H.Okubo, H.Shinohara
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Journal Title
Physica E 21
Pages: 1089-1092
Description
「研究成果報告書概要(欧文)」より
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[Journal Article] Azafullerene (C_<59>N)_2 Thin Film Field Effect Transistors2004
Author(s)
R.Kumashiro, K.Tanigaki, H.Ohashi, N.Tagmatarchis, H.Kato, H.Shinohara, T.Akasaka, K.Kato, S.Aoyagi, S.Kimura, M.Takata
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Journal Title
Appl.Phys.Lett. 84
Pages: 2154-2156
Description
「研究成果報告書概要(欧文)」より
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[Journal Article] Tuning Spectral Properties of Fullerenes by Substitutional Doping2004
Author(s)
R-H.Xie, G.W.Bryant, G.Sun, T.Kar, Z.-F.Chen, V.H.Smith, Jr., Y.Araki, N.Tagmatarchis, H.Shinohara, O.Ito
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Journal Title
Phys.Rev.B 69
Pages: 201403-1-201403-4
Description
「研究成果報告書概要(欧文)」より
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