Kyushu University Academic Staff Educational and Research Activities Database
Keyword Search Method of using the search function
Keyword
Search Criteria
 
Detailed Search

Researcher information
Hiroki Ago Last modified date：2013.5.24

Associate Professor / Department of Integrated Materials
Institute for Materials Chemistry and Engineering


Graduate School
Department of Applied Science for Electronics and Materials
Interdisciplinary Graduate School of Engineering Sciences


E-Mail
Homepage
[URL]
Research on growth and electronic applications of graphene and carbon nanotubes .
Fax
092-583-7817
Academic Degree
Doctor of Engineering
Field of Specialization
Nanotechnology, Physical Chemistry, Molecular Engineering, Material Science
Outline Activities
Research activities:
Carbon nanotubes are one of attractive nano-materials due to their unique electronic structure. The following research subjects are in progess.
[1] Growth, mechanism, and processing of high-quality graphene
[2] Electrical and/or chemical applications of graphene and nanotubes
[3] Developpment of new two dimensional nanosheets
[4] Highly-controlled synthesis and large-scale production of single-walled carbon nanotubes

Education activities:
Teaching in classes both in the undergraduate and graduate schools.
Research
Research Interests
  • Synthesis of novel carbon materials
    keyword : nanocarbon
    2012.04.
  • Growth and Development of new two-dimensional materials
    keyword : two-dimensional materials
    2012.04.
  • Electronic and optical properties of graphene and development of electronic applications
    keyword : graphene, CVD, physical properties devices
    2011.04.
  • Development of processing methods of graphene
    keyword : graphene, CVD, processing
    2010.04.
  • Catalytic growth of graphene films and understanding the growth mechanism
    keyword : graphene, cystal growth, CVD
    2011.04.
  • Development of highly controlled synthesis of single-walled carbon nanotubes - chirality/electronic structure control-
    keyword : carbon nanotube, chirality, semiconductor
    2007.10.
  • Epitaxially aligned growth and high-density growth of single-walled carbon nanotubes
    keyword : single-walled carbon nanotubes, horizontally-aligned growth
    2004.10.
  • Basic research for electronic applications of single-walled carbon nanotubes
    keyword : carbon nanotubes, transistors
    2005.04.
Current and Past Project
  • Synthesis and Control of Graphene for Carbon Electronics
  • Synthesis and Control of Graphene for Carbon Electronics
  • Epitaxial growth of single-walled carbon nanotubes on crystalline surfaces.
  • Fabrication of ordered carbon nanotube network and application to next-generation semiconductor devices.
Academic Activities
Books
 Show All Books >>
1. Carbon Nanotubes - Challenge to nanodevices -
Chap. 11; Workfunction and integrated devices with semiconductors, H. Ago
K. Tanaka ed..
2. H. Ago and T. Yamabe,The Science and Technology of Carbon Nanotubes,Elsevier Science, Oxford, UK,Frontiers in Carbon Nanotubes and Beyond, Chap. 14, p.163-183,1999.01.
Reports
 Show All Reports >>
Papers
 Show All Papers >>
1. Y. Ogawa, B. Hu, C. M. Orofeo, M. Tsuji, K. Ikeda, S. Mizuno, H. Hibino, H. Ago,Domain structure and boundary in single-layer graphene grown on Cu (111) and Cu (100) films,J. Phys. Chem. Lett.,Vol.3,No.2,pp.219-226,2012.01.
2. B. Hu, H. Ago,* Y. Ito, K. Kawahara, M. Tsuji, E. Magome, K. Sumitani, N. Mizuta, K. Ikeda, S. Mizuno,Epitaxial growth of large-area single-layer graphene over Cu(111)/sapphire by atmospheric pressure CVD,Carbon,Vol.50,No.1,pp.57-65,2012.01.
3. H. Ago, T. Ayagaki, Y. Ogawa, M. Tsuji,Ultra-high vacuum-assisted control of metal nanoparticles for horizontally-aligned single-walled carbon nanotubes with extraordinary uniform diameters,J. Phys. Chem. C,Vol.115,No.27,pp.13247-13253,2011.07.
4. C. M. Orofeo, H. Ago, B. Hu, M. Tsuji,Synthesis of large-area, homogeneous, single layer graphene by annealing amorphous carbon on Co and Ni,Nano Res.,Vol.4,No.6,pp.531-540,2011.06.
5. H. Ago, Y. Ito, N. Mizuta, K. Yoshida, B. Hu, C. M. Orofeo, M. Tsuji, K. Ikeda, S. Mizuno,Epitaxial chemical vapor deposition growth of single-layer graphene over cobalt film crystallized on sapphire,ACS Nano,Vol.4,No.12,pp.7407-7414,2010.12.
6. H. Ago, T. Nishi, K. Imamoto, N. Ishigami, M. Tsuji, T. Ikuta, K. Takahashi
,Orthogonal growth of horizontally-aligned single-walled carbon nanotube arrays,J. Phys. Chem. C,Vol.114,No.30,pp.12925-12930,2010.08.
7. H. Ago, I. Tanaka, M. Tsuji, K. Ikeda,Patterned growth of graphene over epitaxial catalyst,Small,Vol.6,No.11,pp.1226-1233,2010.06.
8. H. Ago, K. Imamoto, T. Nishi, M. Tsuji, T. Ikuta, and K. Takahashi,Direct growth of bent carbon nanotubes on surface engineered sapphire,J. Phys. Chem. C,113(30), 13121-13124.,2009.07.
9. N. Yoshihara, H. Ago, M. Tsuji, T. Ikuta, and K. Takahashi,Horizontally aligned growth of single-walled carbon nanotubes on surface modified silicon wafer,J. Phys. Chem. C,113(19), 8030-8034,2009.05.
10. C. M. Orofeo, H. Ago,* N. Yoshihara, and M. Tsuji,Top-down approach to align single-walled carbon nanotubes on silicon substrate,Appl. Phys. Lett.,94(5), 053113-1-3,2009.02.
11. N. Ishigami, H. Ago, T. Nishi, K. Ikeda, M. Tsuji, T. Ikuta, and K. Takahashi
,Unidirectional growth of single-walled carbon nanotubes,J. Am. Chem. Soc. ,130(51), 17264-17265,2008.12.
12. N. Ishigami, H. Ago, K. Imamoto, M. Tsuji, K. Iakoubovskii, and N. Minami,Crystal plane dependent growth of aligned single-walled carbon nanotubes on sapphire,J. Am. Chem. Soc.,130(30), 9918-9924 (2008). ,2008.07.
13. H. Ago, N. Ishigami, N. Yoshihara, K. Imamoto, K. Ikeda, M. Tsuji, T. Ikuta, and K. Takahashi,Visualization of horizontally-aligned single-walled carbon nanotube growth with 13C/12C isotopes,J. Phys. Chem. C,J. Phys. Chem. C (Letter), 112(6), 1735-1738 (2008.2). selected as cover,2008.02.
14. N. Ishigami, H. Ago, Y. Motoyama, M. Takasaki, M. Shinagawa, K. Takahashi, K. Takahashi, and M. Tsuji,Microreactor utilizing a vertically-aligned carbon nanotube array grown inside the channels,Chem. Commun.,1626-1628,2007.03.
15. H. Ago, K. Imamoto, N. Ishigami, R. Ohdo, K. Ikeda, and M. Tsuji,Competition and cooperation between lattice-oriented growth and step-templated growth on aligned carbon nanotubes on sapphire,Appl. Phys. Lett.,90(12), 123112-1-3,2007.03.
16. H. Ago, N. Uehara, N. Yoshihara, M. Tsuji, M. Yumura, N. Tomonaga, and T. Setoguchi,Gas analysis of CVD process for high yield growth of carbon nanotubes over metal-supported catalysts,Carbon,44(14), 2912-2918 ,2006.11.
17. H. Ago, K. Nakamua, K. Ikeda, N. Uehara, N. Ishigami, and M. Tsuji,Aligned growth of isolated single-walled carbon nanotubes programmed by atomic arrangement of substrate surface,Chem. Phys. Lett.,Vol.408,No.4-6,408(4-6), 433-438 (2005).,2005.06.
18. H. Ago, S. Imamura, T. Okazaki, T. Saito, M. Yumura, and M. Tsuji,CVD growth of single-walled carbon nanotubes with a narrow diameter distribution and their optical properties",J. Phys. Chem. B,Vol.109,No.20,109(20), 10035-10041 (2005).,2005.05.
19. H. Ago, S. Ohshima, K. Tsukagoshi, M. Tsuji, and M. Yumura,Formation mechanism of carbon nanotubes in the gas-phase synthesis from colloidal solutions of nanoparticles,Curr. Appl. Phys.,Vol.5,No.2,5(2), 128-132 (2005).,2005.02.
20. H. Ago, K. Nakamura, N. Uehara, and M. Tsuji,Roles of meal-support interaction in growth of single- and double-walled carbon nanotubes studied with diameter-controlled iron particles supported on MgO,J. Phys. Chem. B,108 (49), 18908-18915 (2004).,2004.12.
21. H. Ago, K. Nakamura, S. Imamura, and M. Tsuji,Growth of double-wall carbon nanotube with diameter-controlled iron oxide nanoparticles supported on MgO,Chemical Physics Letters,Vol.391,No.4-6,391(4-6), 308-313 (2004).,2004.06.
22. Y. Zhang, H. Ago, J. Liu, M. Yumura, K. Uchida S. Ohshima, S. Iijima, J. Zhu, X. Zhang,The synthesis of In, In2O3 nanowires and In2O3 nanoparticles with shape-controlled,Journal of Crystal Growth,264, 363-368 (2004).,2004.04.
23. H. Ago, J. Qi, K. Tsukagoshi, K. Murata, S. Ohshima, Y. Aoyagi, and M. Yumura,Catalytic growth of carbon nanotubes and their patterning based on ink-jet and lithographic techniques,Journal of Electroanalytical Chemistry,559, 25-30 (2003).,2003.11.
24. H. Ago, K. Murata, M. Yumura, J. Yotani, and S. Uemura,Ink-Jet Printing of Nanoparticle Catalyst for Site-Selective Carbon Nanotube Growth,Applied Physics Letters,82(5), 811-813 (2003).,2003.02.
25. T. Kimura, H. Ago, M. Tobita, S. Ohshima, M. Kyotani, and M. Yumura,Polymer Composites of Carbon Nanotubes Aligned by a Magnetic Field,Advanced Materials,14(19), 1380-1383 (2002).,2002.10.
26. H. Ago, S. Ohshima, K. Uchida, T. Komatsu, and M. Yumura,Carbon nanotube synthesis using colloidal solution of metal nanoparticles,Physica B,323(1-4), 306-307 (2002).,2002.10.
27. H. Ago, S. Ohshima, K. Uchida, and M. Yumura,Gas-phase synthesis of single-wall carbon nanotubes from colloidal solution of metal nanoparticles,The Journal of Physical Chemistry B,105(43), 10453-10456 (2001).,2001.11.
28. H. Ago, T. Komatsu, S. Ohshima, Y. Kuriki, and M. Yumura,Dispersion of metal nanoparticles for aligned multiwall carbon nanotube arrays,Applied Physics Letters,77(1), 79-81 (2000).,2000.07.
29. H. Ago, M. S. P. Shaffer, D.S. Ginger, A. H. Windle, and R. H. Friend,Electronic interaction bewteen photo-excited poly(p-phenylene vinylene) and carbon nanotubes,Physical Review B,61(3), 2286-2290 (2000).,2000.01.
30. H. Ago, K. Petritsch, M. S. P. Shaffer, A. H. Windle, and R. H. Friend,Composites of carbon nanotubes and conjugated polymers for photovoltaic devices,Advanced Materials,11(15), 1281-1285 (1999).,1999.10.
31. K. Tsukagoshi, B. W. Alphenaar, and H. Ago,Coherent transport of electron spin in a ferromagnetically contacted carbon nanotube,Nature,401, 572-574 (1999).,1999.10.
32. H. Ago, Th. Kugler, F. Cacialli, W. R. Salaneck, M. S. P. Shaffer, A. H. Windle, and R. H. Friend,Work functions and surface functional groups of multiwall carbon nanotubes,The Journal of Physical Chemistry B,103(38), 8116-8121 (1999).,1999.09.
33. H. Ago, M. Kato, K. Yahara, K. Yoshizawa, K. Tanaka, and T. Yamabe,Ab initio study on interaction and stability of lithium-doped amorphous carbons,Journal of the Electrochemical Society,146(4), 1262-1269 (1999).,1999.04.
34. H. Ago, K. Tanaka, T. Yamabe, K. Takegoshi, T. Terao, S. Yata, Y. Hato, and N. Ando,7Li NMR study of Li-doped polyacenic semiconductor (PAS) materials,Synthetic Metals,89, 141 (1997).,1997.08.
35. H. Ago, K. Tanaka, T. Yamabe, T. Miyoshi, K. Takegoshi, T. Terao, S. Yata, Y. Hato, and N. Ando,Structural analysis of polyacenic semiconductor (PAS) materials with 129Xe NMR measurements,Carbon,35, 1781-1787 (1997).,1997.12.
36. H. Ago, T. Kuga, T. Yamabe, K. Tanaka, A. Kunai, and M. Ishikawa,Electronic properties of p-type doped copolymers consisting of oligothienylene and disilanylene units,Chemistry of Materials,9, 1159-1165 (1997).,1997.05.
37. H. Ago, K. Nagata, K. Yoshizawa, K. Tanaka, and T. Yamabe,Theoretical study of Li-doped polycyclic aromatic hydrocarbons,Bulletin of the Chemical Society of Japan,70, 1717-1726 (1997).,1997.07.
38. H. Ago, T. Kuga, T. Yamabe, K. Tanaka, S. Yata, Y. Hato, and N. Ando,ESR study of alkali-doped polyacenic semiconductor (PAS) materials prepared by
thermal decomposition of azides,Carbon,35, 651-656 (1997).,1997.12.
Presentations
 Show All Presentations >>
1. Surface atomic arrangement-programmed growth of horizontally-aligned SWNTs on sapphire.
2. Aligned growth of single-walled carbon nanotubes programmed by single crystal surface.
3. Aligned growth of single-walled carbon annotubes and their characterization.
Other Research Activities
  • 2010.01,Start selling our aligned nanotube sample..
Membership in Academic Society
  • The Fullerenes, Nanotubes, and Graphene Research Society
  • The Japan Society of Applied Physics
  • Chemical Society of Japan
Awards
  • Iijima award
  • Tsukuba prize (industrial part)
Educational
Educational Activities
Graduate school:
"Special Lecture on Nanomaterials Chemistry (with solid state physics)" and "Basics of Quantum Chemistry" for graduate students in the Interdis. Grad. Sch. Eng. Sci.

Undergraduate school:
"Molecular Sciences" for the 1st year students in all the departments.


The fact that no permission it reprints contents of this data base is prohibitted.

Copyright © 2006, Kyushu University. All right reserved.