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●●● List of published papers and presentation in international conference ●●●

国内会議発表 Domestic conference (in Japanese)

Recent Papers

  1. Mingda Ding, Taiki Inoue, John Isaac Enriquez, Harry Halim Handoko, Yui Ogawa, Yoshitaka Taniyasu, Yuji Hamamoto, Yoshitada Morikawa, Yoshihiro Kobayashi
    "Experimental and Theoretical Investigation of Nanodiamond Insertion on the Interlayer Interaction in Multilayer Stacking Graphene"
    Carbon(2024) 229(2024)119464. DOI: 10.1016/j.carbon.2024.119464

  2. Kaipeng Rong, Ryosuke Noro, Hayato Nishigaki, Mingda Ding, Yao Yao, Taiki Inoue, Ryuji Katayama, Yoshihiro Kobayashi, Kazunari Matsuda, Shinichiro Mouri
    "Far-reaching Remote Doping for Monolayer MoS2 Using Ferroelectric Substrate: Unveiling the Impact of h-BN Spacer Thickness"
    ACS Applied Electronic Materials 6(2024)5914–5922. DOI: 10.1021/acsaelm.4c00880

  3. Yao Yao, Taiki Inoue, Makoto Takamura, Yoshitaka Taniyasu and Yoshihiro Kobayashi
    "Suppression of nucleation density in twisted graphene domains grown on graphene/SiC template by sequential thermal process"
    Crystal Growth & Design,24(2024)1682–1689. DOI: 10.1021/acs.cgd.3c01331

  4. Mingda Ding, Taiki Inoue, John Isaac Enriquez, Harry Halim Handoko, Yui Ogawa, Yoshitaka Taniyasu, Yuji Hamamoto, Yoshitada Morikawa, Yoshihiro Kobayashi
    "Reduction of interlayer interaction in multilayer stacking graphene with carbon nanotube insertion: Insights from experiment and simulation"
    J. Phys. Chem. C 127(2023)23768–23777. DOI: 10.1021/acs.jpcc.3c06132

  5. Zizhao Xu, Yuna Himura, Chikako Ishiguro, Taiki Inoue, Yuta Nishina, Yoshihiro Kobayashi
    "Improved performance of strain sensors constructed by highly crystalline graphene with nanospacer"
    Jpn. J. Appl. Phys. 63(2023)015001. DOI: 10.35848/1347-4065/ad0cdb

  6. Yuanjia Liu, Taiki Inoue, Mengyue Wang, Michiharu Arifuku,Noriko Kiyoyanagi, Yoshihiro Kobayashi
    "Gas flow–directed growth of aligned carbon nanotubes from nonmetallic seeds"
    Carbon, 214(2023)118309, doi:10.1016/j.carbon.2023.118309

  7. Ryota Negishi, Takuya Katagiri, Masashi Akabori, and Yoshihiro Kobayashi,
    "Promotion of the structural repair of graphene oxide thin films by thermal annealing in water-ethanol vapor",
    Thin Solid Films., 775(2023)139841, doi:10.1016/j.tsf.2023.139841

  8. Masakiyo Kato, Taiki Inoue, Yi Ling Chiew, Yungkai Chou, Masashi Nakatake, Shoichi Takakura, Yoshio Watanabe, Kazu Suenaga, Yoshihiro Kobayashi
    "Coaxial heterostructure formation of highly crystalline graphene flakes on boron nitride nanotubes by high-temperature chemical vapor deposition"
    Appl. Phys. Exp. 16(2023)035001, doi:10.35848/1882-0786/acbd0e

  9. Mengyue Wang,Manaka Maekawa,Man Shen,Yuanjia Liu, Michiharu Arifuku, Noriko Kiyoyanagi,Taiki Inoue, Yoshihiro Kobayashi
    "Thermal defect healing of single-walled carbon nanotubes assisted by supplying carbon-containing reactants"
    Appl. Phys. Exp.16(2023)015002. doi:10.35848/1882-0786/acaaec

  10. Mengyue Wang, Yuanjia Liu, Manaka Maekawa, Michiharu Arifuku,Noriko Kiyoyanagi,Taiki Inoue,Yoshihiro Kobayashi
    "Combination effect of growth enhancers and carbon sources on synthesis of single-walled carbon nanotubes from solid carbon growth seeds"
    Diamond and Related Materials 130(2022)109516. doi:10.1016/j.diamond.2022.109516

  11. Zizhao Xu, Taiki Inoue, Yuta Nishina, Yoshihiro Kobayashi
    "Stacking Order Reduction in Multilayer Graphene by Inserting Nanospacers"
    J. Appl. Phys. 132(2022)174305-1,12. DOI: 10.1063/5.0103826

  12. Ryota Negishi, Yoshihiro Kobayashi,
    "Synthesis and transport analysis of turbostratic multilayer graphene",
    Chapter 8 in“Quantum Hybrid Electronics and Materials”(Eds. Yoshiro Hirayama, Kazuhiko Hirakawa, and Hiroshi Yamaguchi), pp 149–180, 04 May 2022, Springer,
    doi:10.1007/978-981-19-1201-6_8 , ISBN978-981-19-1200-9(Print)/978-981-19-1201-6(Online)

  13. Mengyue Wang, Keisuke Nakamura, Michiharu Arifuku, Noriko Kiyoyanagi, Taiki Inoue, Yoshihiro Kobayashi
    "Growth of single-walled carbon nanotubes from solid carbon nanoparticle seeds via cap formation engineering with a two-step growth process and water vapor supply"
    ACS Omega 7((2022)3639-3648 doi:10.1021/acsomega.1c06268

  14. Yao Yao, Ryota Negishi, Daisuke Takajo, Makoto Takamura, Yoshitaka Taniyasu and Yoshihiro Kobayashi
    "Scanning probe analysis of twisted graphene grown on a graphene/silicon carbide template"
    Nanotechnology 33((2022)155603 doi:10.1088/1361-6528/ac473a

  15. Zizhao Xu, Shingo Nakamura, Taiki Inoue, Yuta Nishina, Yoshihiro Kobayashi
    "Bulk-scale synthesis of randomly stacked graphene with high crystallinity"
    Carbon, 185(2021)368-375 doi:10.1016/j.carbon.2021.09.034

  16. Ryota Negishi, Katsuma Yamamoto, Hirofumi Tanaka, Seyed Ali Mojtahedzadeh, Nobuya Mori, Yoshihiro Kobayashi
    "Crossover point of the field effect transistor and interconnect applications in turbostratic multilayer graphene nanoribbon channel "
    Sci. Rep. 11(2021)10206. doi:10.1038/s41598-021-89709-z

  17. Ryota Negishi, Chaopeng Wei, Yao Yao, Yui Ogawa, Masashi Akabori, Yasushi Kanai, Kazuhiko Matsumoto, Yoshitaka Taniyasu, Yoshihiro Kobayashi
    "Turbostratic Stacking Effect in Multilayer Graphene on the Electrical Transport Properties"
    Phys. Status Solidi B., 257(2020)1900437 doi:10.1002/pssb.201900437

  18. Bruno Kenichi Saika, Ryota Negishi and Yoshihiro Kobayashi
    "Neuromorphic Switching Behavior in the Multi-stacking Composed of Pt/Graphene Oxide/Ag2S/Ag"
    Japanese Journal of Applied Physics, 58(2019)SIID08.

  19. Ritsu Niimi, Ryota Negishi, Michiharu Arifuku, Noriko Kiyoyanagi,Tomohiro Yamaguchi, Koji Ishibashi and Yoshihiro Kobayashi
    "Effect of protective layer on CNT thin film channel in biosensor device"
    Japanese Journal of Applied Physics, 58(2019)SIIB14.

  20. Chaopeng Wei, Ryota Negishi, Yui Ogawa, Masashi Akabori, Yoshikata Taniyasu and Yoshihiro Kobayashi
    "Turbostratic multilayer graphene synthesis on CVD graphene template toward improving electrical performance"
    Japanese Journal of Applied Physics, 58(2019)SIIB04.

  21. Hiroto Kase, Ryota Negishi, Michiharu Arifuku, Noriko Kiyoyanagi,Yoshihiro Kobayashi
    "Biosensor response from target molecules with inhomogeneous charge localization"
    Journal of Applied Physics, 124(2018)064502.

  22. Ryota Negishi, Kai Takashima and Yoshihiro Kobayashi
    "Investigation of surface potentials in reduced graphene oxide flake by Kelvin probe force microscopy "
    Japanese Journal of Applied Physics, 57(2018)06HD02.

  23. R. Negishi, K. Yamanoto, H. Kitakawa, M. Fukumori, H. Tanaka, T. Ogawa and Y. Kobayashi
    "Synthesis of very narrow multilayer graphene nanoribbon with turbostratic stacking"
    Applied Physics Letters 110(2017)201901.

  24. Ryota Negishi, Yuji Matsui and Yoshihiro Kobayashi
    "Improving sensor response using reduced graphene oxide film transistor biosensor by controlling the pyrene adsorption as an achor molecules"
    Japanese Journal of Applied Physics, Special issue 56(2017)06GE04.

  25. M. Fukumiri, P. R. Raj, T. Fujiwara, A. Termeh Yousefi, R. Negishi, Y. Kobayashi, Hi Tanaka and T. Ogawa
    "Diameter dependence of longitudinal unzipping of single-walled carbon nanotube to obtain graphene nanoribbon"
    Japanese Journal of Applied Physics, Special issue 56(2017)06GG12.

  26. Ryota Negishi, Masashi Akabori, Takahiro Ito, Yoshio Watanabe and Yoshihiro Kobayashi
    "Band-like transport in highly crystalline graphene films from defective graphene oxides"
    Sci. Rep. 6(2016) 28936-1-10.

  27. T. Ishida, Y. Miyata, Y. Shinoda and Y. Kobayashi,
    “Anomalous restoration of graphitic layers from graphene oxide in ethanol environment at ultrahigh temperature using solar furnace”
    Applied Physics Express 9(2016)025103.

  28. H. Tanaka, R. Arima, M. Fukumori, D. Tanaka, R. Negishi, Y. Kobayashi, S. Kasai, T. Yamada, T. Ogawa
    "Method for Controlling Electrical Properties of Single-Layer Graphene Nanoribbons via Adsorbed Planar Molecular Nanoparticles"
    Scientific Reports 5 (2015) 14399-1-8.

  29. Yoshihiro Kobayashi, Takashi Ishida, Yuichi Miyata and Yoshihiko Shinoda
    "Highly crystalline graphene formation from graphene oxides by ultrahigh temperature process using solar furnace"
    MRS Proceedings 1786 (2015) 31-36.

  30. Ryota Negishi and Yoshihiro Kobayashi, "Extraordinary suppression of carrier scattering in large area graphene oxide films"
    Applied Physics Letters 105(2014) 253502-1-5.

  31. Ryota Negishi, Yasuhide Ohno, Kenzo Maehashi, Kazuhiko Matsumoto, Yoshihiro Kobayashi
    “Carrier transport properties of the field effect transistors with graphene channel prepared by chemical vapor deposition”
    Jpn. J. Appl. Phys., 50 (2012) 06GE04-1-4.

  32. Hirofumi Tanaka, Liu Hong, Minoru Fukumori, Ryota Negishi, Yoshihiro Kobayashi, Daisuke Tanaka, Takuji Ogawa
    “Influence of nanoparticle size on the electrical properties of naphthalenediimide with sigle-walled carbon nanotube wiring”
    Nanotechnology 23 (2012) 215701-1-6.

  33. Ryota Negishi, Hiroki Hirano, Yasuhide Ohno, Kenzo Haehashi, Kazuhiko Matsumoto, Yoshihiro Kobayashi
    "Layer-by-layer growth of graphene layers on graphene substrates by chemical vapor deposition"
    Thin Solid Films, 519 (2011) 6447-6452.

  34. Ryota Negishi, Hiroki Hirano, Yasuhide Ohno, Kenzo Haehashi, Kazuhiko Matsumoto, and Yoshihiro Kobayashi
    "Thickness control of graphene overlayer via layer-by-layer growth on graphene templates by chemical vapor depositions"
    Jpn. J. Appl. Phys., 50(2011) 06GE04-1-4.

  35. Norihito Hibino, Satoru Suzuki, Hiroyuki Wakahara, Yoshihiro Kobayashi, Tetsuya Sato, and Hideyuki Maki
    "Short-Wavelength Electroluminescence from Single-Walled Carbon Nanotubes with HighBias Voltage"
    ACS Nano 5(2011)1215-1222.

  36. Satoru Suzuki, Yoshihiro Kobayashi, Tomoyuki Mizuno, Hideyuki Maki
    "Non-catalytic growth of graphene-like thin film near pattern edges fabricated on SiO2 substrates"
    Thin Solid Films 518 (2010) 5040-5043.

  37. Satoru Suzuki, Kenji Yamaya, Yoshikazu Homma, Yoshihiro Kobayashi
    "Activation energy of healing of low-energy irradiationinduced defects in single-wall carbon nanotubes"
    Carbon 48(2010) 3211-3217.

  38. Yoshikazu Homma, Shohei Chiashi and Yoshihiro Kobayashi
    "Suspended single-wall carbon nanotubes: synthesis and optical properties"
    Rep. Prog. Phys. 72(2009)066502

  39. Daisuke Takagi, Yoshihiro Kobayashi and Yoshikazu Homma,
    "Carbon Nanotube Growth from Diamond"
    J. Am. Chem. Soc., 131(2009)6922-6923.

  40. Hiroo Omi, Hiroyuki Kageshima, Tomoaki Kawamura, Masashi Uematsu, Yoshihiro Kobayashi, Seiji Fujikawa, Yoshiyuki Tsusaka, Yasushi Kagoshima, and Junji Matsui
    "Stability-instability transition of reaction fronts in thermal oxidation of silicon"
    Phys. Rev. B79(2009)245319.

  41. Ilya Sychugov, Hiroo Omi, Tooru Murashita and Yoshihiro Kobayashi,
    "Optical and electrical characterization at the nanoscale with a transparent probe of a scanning tunnelling microscope"
    Nanotechnology 20 (2009) 145706

  42. Goo-Hwan Jeong, Satoru Suzuki and Yoshihiro Kobayashi
    "Synthesis and characterization of Au-attached single-walled carbon nanotube bundles"
    Nanotechnology 20 (2009) 285708

  43. Goo-Hwan Jeong and Yoshihiro Kobayashi
    "Different Behaviors of Catalytic Nanoparticles during Carbon Nanotube Growth by Chemical Vapor Deposition"
    J. Korean Phys. Soc. 54(2009)1011-1015.

  44. Hiroo Omi, Tomoaki Kawamura, Yoshihiro Kobayashi, Seiji Fujikawa, Yoshiyuki Tsusaka, Yasushi Kagoshima, and Junji Matsui
    "Real-Time Analyses of Strain in Ultrathin Silicon Nanolayers on Insulators during Thermal Oxidation"
    Appl. Phys. Exp. 2(2009)126503-1~3.

  45. Yoshikazu Homma, Huaping Liu, Daisuke Takagi, and Yoshihiro Kobayashi
    "Single-walled carbon nanotube growth with non-iron-group “catalysts” by chemical vapor deposition"
    Nano Res. 2(2009)793.

  46. Hideyuki Maki, Tomoyuki Mizuno, Satoru Suzuki, Tetsuya Sato, and Yoshihiro Kobayashi
    "Multi-Back-Gate Control of Carbon Nanotube Double-Quantum Dot"
    Jpn. J. Appl. Phys. 48 (2009) 04C201

International Conference (2010-)

  1. Mingda DING, Taiki Inoue, John Isaac ENRIQUEZ, Harry Handoko HALIM, Yuji Hamamoto, Yoshitada Morikawa, Yoshihiro Kobayashi
    “Nanospacer-Induced Modulation of Interlayer Interactions in Stacked Multilayer Graphene: A Study on Carbon Nanotubes and Nanodiamonds”
    The 15th Recent Progress in Graphene and 2D Materials Research Conference (RPGR2024), Nanjing Univ., Nanjing (南京） China, (July 17-20, 2024).

  2. T. Inoue, M. Shimizu, Y. Kobayashi
    “Large-Area Fabrication of Isolated Suspended Single-Walled Carbon Nanotube Arrays for Heteronanotube Growth”
    The 24th International Conference on the Science and Applications of Nanotubes and Low-Dimensional Materials (NT24), MIT, Boston USA, (June 23-28, 2024).

  3. Y. Yao, T. Inoue, Y. Kobayashi, Y. Taniyasu, M. Takamura
    “Control of graphene island nucleation on graphene/SiC template by sequential thermal processes in vacuo without air exposure”
    The 23rd International Conference on the Science and Applications of Nanotubes and Low-Dimensional Materials (NT'23), Arcachon France, (June 4-9, 2023), P025.

  4. K. Rong, R. Noro, H. Nishigaki, M. Ding, Y. Yao, T. Inoue, R. Katayama, Y. Kobayashi, S. Mouri
    “DOPING EFFECT OF MOS2 USING PERIODICALLY POLARIZATION-INVERSED SUBSTRATE”
    The 23rd International Conference on the Science and Applications of Nanotubes and Low-Dimensional Materials (NT'23), Arcachon France, (June 4-9, 2023), P045.

  5. Yao Yao, Taiki Inoue, Makoto Takamura, Yoshitaka Taniyasu and Yoshihiro Kobayashi
    “Twisted graphene growth on graphene/SiC template using sequential thermal processes in vacuo without air exposure”
    2022 MRS Fall Meeting, Boston USA, (Nov.27-Dec.2, 2022).

  6. Y. Himura, C. Ishiguro, Z. Xu , T. Inoue, Y. Nishina, Y. Kobayashi
    “Stretchable strain sensors fabricated using a highly crystalline reduced graphene oxide/carbon nanotube composite”
    2022 MRS Fall Meeting, Boston USA, (Nov.27-Dec.2, 2022).

  7. Mengyue Wang, Yuanjia Liu, Manaka Maekawa, Michiharu Arifuku,Noriko Kiyoyanagi, Masamitsu Satake, Taiki Inoue, Yoshihiro Kobayashi
    "Effect of CO2 in high temperature SWCNT growth from solid carbon growth seeds"
    The 22nd Int. Conf. on the Science and Applications of Nanotubes and Low-Dimensional Materials (NT-22), Suwon, Korea and online (June 19-24, 2022).

  8. Yuanjia Liu, Michiharu Arifuku, Noriko Kiyoyanagi, Masamitsu Satake, Taiki Inoue, Yoshihiro Kobayashi
    "Kite-growth of long, aligned carbon nanotubes from non-metallic growth seeds"
    The 22nd Int. Conf. on the Science and Applications of Nanotubes and Low-Dimensional Materials (NT-22), Suwon, Korea and online (June 19-24, 2022).

  9. Yoshihiro Kobayashi, and Ryota Negishi,
    "Preparation and electric property analysis of turbostratic multilayer graphene",C10-08-43(Oral)
    The 8th Asian Conference on Crystal Growth and Crystal Technology,online (March 1-3, 2021).

  10. R. Negishi, C. Wei, Y. Ogawa, M. Akabori, Y. Taniyasu, Y. Kanai, K. Matsumoto, K. Hashimoto, Y. Hirayama, and Y. Kobayashi
    "Weak localization state in turbostratic multilayer graphene", LNP-9
    International Symposium on Hybrid Quantum Systems 2019 (HQS2019), Matsue, Japan (Dec.1-4, 2019).

  11. Ryota Negishi, Chaopeng Wei, Yui Ogawa, Masashi Akabori, Yoshitaka Taniyasu, Yasushi Kanai, Kazuhiko Matsumoto and Yoshihiro Kobayashi,
    "Anomalous electrical transport properties of multilayer graphene with turbostratic stacking",
    20th International Conference on the Science and Application of Nanotubes and Low-Dimensional Materials (NT19),Würzburg, Germany (July, 21-26, 2019).

  12. Ryota Negishi, Yuriko Tadano, Yuta Nishina, Masashi Akabori and Yoshihiro Kobayashi,
    "Synthesis of highly crystalline multilayer graphene from defective graphene oxide materials",
    20th International Conference on the Science and Application of Nanotubes and Low-Dimensional Materials (NT19),Würzburg, Germany (July, 21-26, 2019).

  13. ZIZHAO. Xu, Chikako Ishiguro, Ahmad Faiz Ibadurrahman, Yuta Nishina, Yoshihiro Kobayashi,
    "Electrochemical properties of 3D graphene sponge fabricated from graphene oxide",
    20th International Conference on the Science and Application of Nanotubes and Low-Dimensional Materials (NT19),Würzburg, Germany (July, 21-26, 2019).

  14. Mengyue Wang, Keisuke Nakamura, Hiroki Semba, Michiharu Arifuku, Noriko Kiyoyanagi, Yoshihiro Kobayashi,
    "Efficient synthesis of defect-free single-walled carbon nanotube from solid nanoparticles by chemical vapor deposition at high-temperature",
    20th International Conference on the Science and Application of Nanotubes and Low-Dimensional Materials (NT19),Würzburg, Germany (July, 21-26, 2019).

  15. Bruno Kenichi Saika, Ryota Negishi and Yoshihiro Kobayashi,
    "Analysis of the resistance switching properties in the multi-stacking composed of Pt/graphene oxide/Ag2S/Ag",
    20th International Conference on the Science and Application of Nanotubes and Low-Dimensional Materials (NT19),Würzburg, Germany (July, 21-26, 2019).

  16. Yoshihiro Kobayashi,
    "Structure-controlled synthesis of nanocarbon materials by high temperture process",
    The 3rd joint symposium of Osaka University with higher educational institutions of Brunei Darussalam, Brunei (Nov 2, 2019).Invited

  17. Yoshihiro Kobayashi, Zizhao Xu, Yuta Nishina, Ryota Negishi,
    "Synthesis and characterization of graphene thin film with turbostratic stacking from graphene oxide",
    Graphene2019, Rome, Italy (June, 25-28, 2019).

  18. R. Negishi and Y. Kobayashi,
    "Anomalous electrical transport properties of multilayer graphene with turbostratic stacking fabricated by CVD on graphene templates",
    Canada-Japan Workshop on Hybrid Quantum Systems, Ottawa, Canada (June, 26-27 2019).Invited

  19. Ryota Negishi, Chaopeng Wei, Yui Ogawa, Masashi Akabori, Yoshitaka Taniyasu and Yoshihiro Kobayashi,
    "Turbostratic stacking effect in multilayer graphene on the electrical transport properties",
    Compound Semiconductor Week (CSW2019) ,Nara, Japan (May, 19-23, 2019).

  20. C. Wei, R. Negishi, Y. Ogawa, M. Takamura, Y. Taniyasu and Y. Kobayashi,
    "Turbostratic Multilayer Graphene Synthesis On CVD Graphene Template Toward Improving Electrical Performance",
    23C26, 14th Int. Conf. on Atomically Controlled Surfaces, Interfaces and Nanostructures (ACSIN-14), Sendai, Japan (Oct. 21-25, 2018).

  21. K. Nakamura, H. Semba, S.X. Li, M. Arifuku, N. Kiyoyanagi and Y. Kobayashi,
    "Ultra-high Crystallinity Carbon Nanotube Grown from Carbon Nano-onion",
    22P074, 14th Int. Conf. on Atomically Controlled Surfaces, Interfaces and Nanostructures (ACSIN-14), Sendai, Japan (Oct. 21-25, 2018).

  22. R. Negishi, K. Yamamoto, M. Fukumori, T. Fujiwara, H. Tanaka and Y. Kobayashi,
    "Electrical transport properties of multilayer graphene nanoribbons",
    23P072, 14th Int. Conf. on Atomically Controlled Surfaces, Interfaces and Nanostructures (ACSIN-14), Sendai, Japan (Oct. 21-25, 2018).

  23. R. Niimi, R. Negishi, Y. Tadano, M. Arifuku, N. Kiyoyanagi, T. Yamaguchi, K. Ishibashi and Y. Kobayashi,
    "Effect of protective layer on CNT thin film channel in biosensor device",
    23P092, 14th Int. Conf. on Atomically Controlled Surfaces, Interfaces and Nanostructures (ACSIN-14), Sendai, Japan (Oct. 21-25, 2018).

  24. B. K. Saika, R. Negishi and Y. Kobayashi,
    "Neuromorphic Switching Behavior in the Multi-stacking Composed of Ag/Ag2S/GO",
    23P171, 14th Int. Conf. on Atomically Controlled Surfaces, Interfaces and Nanostructures (ACSIN-14), Sendai, Japan (Oct. 21-25, 2018).

  25. R. Negishi, M. Maruoka, Y. Ogawa, M. Takamura, Y. Taniyasu, and Y. Kobayashi,
    “Synthesis of highly crystalline multilayer graphene on graphene template by high growth temperature”,
    19th Int. Conf. on the Sci. and Appl. of Nanotubes and Low-dimensional Materials (NT18), Beijing, China (July 15-20, 2018).

  26. R. Niimi, R. Negishi, M. Arifuku, N. Kiyoyanagi, T. Yamaguchi, K. Ishibashi and Y. Kobayashi,
    “Noise reduction in sensor response of carbon nanotube thin film biosensor using HfO2 layer as protective film”,
    19th Int. Conf. on the Sci. and Appl. of Nanotubes and Low-dimensional Materials (NT18), Beijing, China (July 15-20, 2018).

  27. C. Wei, R. Negishi, Y. Ogawa, M. Takamura, Y. Taniyasu, and Y. Kobayashi,
    “Evaluation of electrical conductivity in turbostratic multilayer graphene films synthesized from CVD graphene”,
    19th Int. Conf. on the Sci. and Appl. of Nanotubes and Low-dimensional Materials (NT18), Beijing, China (July 15-20, 2018).

  28. K. Nakamura, A. Ohhata, M. Arifuku, N. Kiyoyanagi, and Y. Kobayashi,
    “Control of 12C/13C isotope in CNT grown from nanodiamond”,
    19th Int. Conf. on the Sci. and Appl. of Nanotubes and Low-dimensional Materials (NT18), Beijing, China (July 15-20, 2018).

  29. Z. Xu, S. Nakamura, Y. Nishina, and Y. Kobayashi,
    “Scalable synthesis of highly porous nanocarbon materials by ultrahigh temperature process for graphene oxide and cellulose nanofiber composites”,
    19th Int. Conf. on the Sci. and Appl. of Nanotubes and Low-dimensional Materials (NT18), Beijing, China (July 15-20, 2018).

  30. R. Negishi and Y. Kobayashi,
    “Restoration and layer-by-layer growth of graphene structures by controlling partial pressure of ethanol vapor through high process temperature”,
    Nanotech Malaysia 2018, Kuala Lumpur, Malaysia (May 7-8, 2018). Invited.

  31. Shingo Nakamura, Zizhao Xu, Yuta Nishina, Yoshihiro Kobayashi,
    “Scalable synthesis of highly porous graphene with turbostratic stacking by thermal process of graphene oxide sponge”,
    E-MRS 2018 Spring Meeting, Strasbourg France (June 18-22, 2018).

  32. Yoshihiro Kobayashi, Shingo Nakamura, Takashi Ishida, Atsuki Ohata, Yuta Nishina
    “Scalable Synthesis of Turbostratic Multilayer Graphene Film from Graphene Oxides by Ultrahigh Temperature Process”
    2017 MRS Fall Meeting, Boston USA, (Nov.27-Dec.1, 2017).

  33. Ryota Negishi, Kai Takashima and Yoshihiro Kobayashi
    “Investigation of surface potentials in reduced graphene oxide flake”
    The 30th International Microprocesses and Nanotechnology Conference (MNC2017), Jeju island, South Korea, (Nov.6-10, 2017).

  34. Ryota Negishi, Takuya Nakagiri, Masashi Akabori and Yoshihiro Kobayashi
    “Improved electrical properties of reduced graphene oxide film by water-assisted thermal process”
    The 30th International Microprocesses and Nanotechnology Conference (MNC2017), Jeju island, South Korea, (Nov.6-10, 2017).

  35. A. Ohata, X. Xizhao, T. Ishida and Y. Kobayashi
    “Raman analysis on nanocarbon materials formation by isotope labelling toward 13C position control in graphitic lattice”
    International Symposium on Hybrid Quantum Systems 2017 (HQS2017), Zao, Japan, (Sep. 11, 2017).

  36. S. Nakamura, T. Ishida, Y. Nishina and Y. Kobayashi
    “Synthesis of turbostratic multilayer graphene film from graphene oxides by ultrahigh temperature process”
    International Symposium on Hybrid Quantum Systems 2017 (HQS2017), Zao, Japan, (Sep. 11, 2017).

  37. Ryota Negishi, Masashi Akabori, Takahiro Ito, Yoshio Watanabe, and Yoshihiro Kobayashi
    “Band-like transport in highly crystalline graphene thin films from defective graphene oxide material ”
    International Symposium on Hybrid Quantum Systems 2017 (HQS2017), Zao, Japan, (Sep. 11, 2017).

  38. R. Negishi, M. Akabori, T. Ito, M. Nakatake, Y. Watanabe and Y. Kobayashi
    “Synthesis of highly crystalline graphene thin films from defective graphene oxide materials: towards sensor application”(invited)
    2017 Collaborative Conference on Materials Research, Jeju island, South Korea, (June 26-30, 2017).

  39. Ryota Negishi, Yuji Matsui, Yoshihiro Kobayashi
    “Effects of pyrene adsorption density as anchor molecules on biosensor response using reduced graphene oxide thin film transistor”
    29th International Microprocesses and Nanotechnology Conference, Kyoto, Japan (November 8-11, 2016).

  40. Ryota Negishi, Masashi Akabori, Takahiro Ito, Yoshio Watanabe and Yoshihiro Kobayashi
    "Band-like transport in highly crystalline graphene thin films from defective graphene oxide materials"
    16th International Conference on the Science and Application of Nanotubes and low-dimensional materials,
    University of Vienna, Austria, (August 7-13th, 2016).

  41. Hiroto Kase, Ryota Negishi, Michihiro Arifuku, Noriko Kiyoyanagi and Yoshihiro Kobayashi
    "Effect of inhomogeneous charge localization in target molecules on biosensor response using CNT thin film transistor"
    16th International Conference on the Science and Application of Nanotubes and low-dimensional materials
    University of Vienna, Austria, (August 7-13th, 2016).

  42. Takashi Ishida, Yuya Hikita, Yoshihiko Shinoda and Yoshihiro Kobayashi
    "Anomalous stacking structures in graphene oxide treated at ultrahigh temperature in ethanol environment"
    16th International Conference on the Science and Application of Nanotubes and low-dimensional materials
    University of Vienna, Austria, (August 7-13th, 2016).

  43. Ryota Negishi, Michihiro Matsuzaki, Masashi Akabori, Syoji Yamada, Takahiro Ito, Yoshio Watanabe and Yoshihiro Kobayashi
    “Band-like transport properties of reduced graphene oxide films”
    15th International Conference on the Science and Application of Nanotubes, Nagoya, Japan, (Jun. 28th - Jul. 2nd, 2015).

  44. Hiroto Kase, Ryota Negishi, Michiharu Arifuku, Noriko Kiyoyanagi and Yoshihiro Kobayashi
    “Improved response of thin film transistor biosensors by controlling synthesis conditions of CNT channel”
    15th International Conference on the Science and Application of Nanotubes, Nagoya, Japan, (Jun. 28th - Jul. 2nd, 2015).

  45. Akio Hayashi, Ryo Shina, Michiharu Arifuku, Noriko Kiyoyanagi and Yoshihiro Kobayashi
    “Structural analysis of SWCNs synthesized from very thin nanodiamon layers”
    15th International Conference on the Science and Application of Nanotubes, Nagoya, Japan, (Jun. 28th - Jul. 2nd, 2015).

  46. Takashi Ishida, Yuichi Miyata, Yoshihiko Shinoda, and Yoshihiro Kobayashi
    “Efficient restoration of highly crystalline graphene from graphene oxide by ultrahigh temperature process under reactive environment”
    15th International Conference on the Science and Application of Nanotubes, Nagoya, Japan, (Jun. 28th - Jul. 2nd, 2015).

  47. Y. Kobayashi, T. Ishida, Y. Miyata and Y. Shinoda
    “Highly crystalline graphene formation from graphene oxides by ultrahigh temperature process using solar furnace”
    MRS spring Meeting, San Francisco, USA (April 6-10, 2015).

  48. Ryota Negishi, Tetsuhiro Murata, Junichi Takeya and Yoshihiro Kobayashi
    “Fabricating very short channels in organic field effect transistors by dielectrophoresis technique”
    International Conference on Solid State Devices and Materials, Tsukuba, Japan, (September 9-11, 2014).

  49. Ryota Negishi, Michihiro Matsuzaki, Masashi Akabori, Syoji Yamada and Yoshihiro Kobayashi
    “Improvement of electrical performance in the reduced graphene oxide films prepared by thermal treatment
    in ethanol vapor toward sensor applications”
    27th International Microprocesses and Nanotechnology conference, Fukuoka Japan, (November 4-7, 2014).

  50. H. Kokame, K. Fujimoto, R. Negishi, T. Arifuku, N. Kiyoyanagi and Y. Kobayashi
    “Efficient growth of metal-free carbon nanotubes from nanodiamonds”
    JSAP-MRS Joint Symposia Kyoto, Japan (Sep. 16-20, 2013).

  51. T. Kusumoto, H. Kokame, R. Negishi and Y. Kobayashi
    “Preparation and Raman Characterization of Carbon Nanotube-Graphene Hybrid Structures”
    th International Conference on Advanced Vibrational Spectroscopy, Kobe, Japan (August 20-30, 2013).

  52. M. Matsuzaki, R. Negishi, Y. Ohno, K. Maehashi, K. Matsumoto, Y. Kobayashi,
    ”Improving electrical performance of graphene oxide thin films by alcohol vapor treatment”
    The 40th international symposium on compound semiconductors, Kobe, Japan, (May 19-23, 2013).

  53. Ryota Negishi, Michihiro Matsuzaki, Yasyhide Ohno, Kenzo Maehashi, Kazuhiko Matsumoto and Yoshihiro Kobayashi
    “Efficient suppression of carrier scattering at the interface between reduced graphene oxide flakes ”
    JSAP-MRS Joint Symposia Kyoto, Japan (Sep. 16-20, 2013).

  54. Ryota Negishi, Yasuhide Ohno, Kenzo Maehashi, Kazuhiko Matsumoto, Yoshihiro Kobayashi
    “Carrier transport properties of multilayer graphene with turbostratic structure”
    13th International Conference on the Science and Application of Nanotubes(NT12), Brisbane, Australia (June 24-29, 2012).

  55. Yoshihiro Kobayashi, Shoji Koriyama and Ryota Negishi
    “Efficient growth of single-walled carbon nanotubes from nanodiamond seeds”
    13th International Conference on the Science and Application of Nanotubes(NT12), Brisbane, Australia (June 24-29, 2012).

  56. Yoshihiro Kobayashi
    “Efficient growth of carbon nanotubes from crystalline nanoparticles:toward applications of self-duplicated growth for nanodevices”
    International Symposium on Carbon Nanotube Nanoelectronics (CNTNE2012), Nagoya, Japan(June 11-13, 2012).

  57. R. Negishi, Y. Ohno, K. Maehashi, K. Matsumoto, Y. Kobayashi,
    "Carrier Transport Properties of Turbostratic Multilayer Graphene Grown by Chemical Vapor Deposition"
    International Symposium on Carbon Nanotube Nanoelectronics (CNTNE2012), Nagoya, Japan(June 11-13, 2012).

  58. Ryota Negishi, Yasuhide Ohno, Kenzo Maehashi, Kazuhiko Matsumoto, Yoshihiro Kobayashi
    “Transport properties of field effect transistors with a graphene channel prepared by chemical vapor deposition”
    24th International Microprocesses and Nanotechnology conference(MNC 2011), Kyoto, Japan (October 24-27, 2011).

  59. Ryota Negishi, Yasuhide Ohno, Kenzo Maehashi, Kazuhiko Matsumoto, Yoshihiro Kobayashi
    “Investigation of the mobilities for field effect transistor with a graphene channel prepared by chemical vapor deposition”,
    International workshop on quantum nanostructures and nanoelectronics, Tokyo Japan (October 3-4, 2011).

  60. Kazuki Kuramoto, Ryota Negishi, Yasuhide Ohno, Kenzo Maehashi, Kazuhiko Matsumoto, Yoshihiro Kobayashi
    “Fabrication of field effect transistor arrays using alcohol reduced graphene oxide channel for sensing applications”,
    International workshop on quantum nanostructures and nanoelectronics, Tokyo Japan (October 3-4, 2011).

  61. R. Negishi, H. Hirano, Y. Kobayashi, Y. Ohno, K. Maehashi and K. Matsumoto
    "Thickness Control of Graphene Overlayer via Layer-by-Layer Growth on Graphene Templates by Chemical Vapor Deposition"
    23rd International Microprocesses and Nanotechnology Conference (MNC 2010), Fukuoka Japan (November 9-12, 2010).

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