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Yasuo Nakayama

Assistant Professor (Specially Appointed)
Center for Frontier Sicence, Chiba University, Japan

Doctor of Science (Physical Chemistry), The University of Tokyo (2005)

Birth: 1977.1.xx

Reserch Interests: Transport characteristics at metal-organic (or organic-organic) interfaces.
Reserch Skills: SPM (including microscopic electrical measurements and photon-assisted techniques), electron spectroscopies (UPS, XPS, AES), PYS, XAS, ultra-high vacuum

Personal data

nezumi_2nd.jpg

Hobbies: Playing the french horn, Train journey (or just tracing on a map !)

Family: Kana (wife; an assistant editor of a university press company), "Гра" (pet; a skinny cavy named after a Russian word "Граничные")

Dislike: onion (except sliced raw and well-done ones), caterpillars

Carriers

  • Assistant Professor (Specially Appointed), Chiba University [2009.4-present]
  • Specially Appointed Academic Staff, Chiba University [2007.4-2009.3]
  • Post-Doc., Japan Science and Technology Agency (c/o The University of Tokyo) [2005.4-2007.3]

Degrees

  • Doctor of Science [2005.3.24]
    "Geometric and electronic structures of mixed valence Sm on Cu single crystals studied by scanning tunneling microscopy and x-ray photoelectron spectroscopy"
  • Master of Science [2001.3.29]
  • Bachelor of Science [1999.3.26]

Academics

  • Department of Chemistry, Graduate School of Science, The University of Tokyo [1999.4-2005.3]
  • Department of Chemistry, School of Science, The University of Tokyo [1997.4-1999.3]
  • College of Arts and Sciences (Junior Division), The University of Tokyo [1995.4-1997.3]
  • Tsuchiura-First Highschool (Ibaraki Pref.) [1992.4-1995.3]

Awards

  • The Surface Science Society of Japan (SSSJ) Paper Award 2009 (2nd Author).
  • Incentive Award for Excellent Presentation; The 7th Regular Meeting (2008, autumn) of OLED Forum Japan (Yuuki-EL Touronkai).
  • Incentive Award for Excellent Presentation; The 55th Joint Annual Meeting (2008, spring) of The Japan Society of Applied Physics.

Publications

  • Original papers
  1. "Photoemission study on the electronic structures of 2-amino-4,5-imidazoledicarbonitrile (AIDCN)-metal interfaces as a model of an organic nonvolatile memory device"
    Yasuo Nakayama, Yen-Hao Huang, Chin-Hsuan Wei, Shin-ichi Machida, Takuya Kubo, Tun-Wen Pi, Shu-Jung Tang, Yutaka Noguchi, Hisao Ishii
    Hyomen-kagaku (Journal of The Surface Science Society of Japan), 31 (2010) 434-440. (in Japanese)

  2. "Interface electronic structures of 2-amino-4,5-imidazoledicarbonitrile on Ag and Al surfaces"
    Yasuo Nakayama, Yen-Hao Huang, Ching-Hsuan Wei, Takuya Kubo, Shin-ichi Machida, Tun-Wen Pi, S.-J. Tang, Yutaka Noguchi, Hisao Ishii
    Journal of Applied Physics, 108 (2010) 053702.

  3. "Highest occupied molecular orbital band dispersion of rubrene single crystals as observed by angle-resolved ultraviolet photoelectron spectroscopy"
    Shin-ichi Machida, Yasuo Nakayama, Steffen Duhm, Qian Xin, Akihiro Funakoshi, Naoki Ogawa, Satoshi Kera, Nobuo Ueno, Hisao Ishii
    Physical Review Letters, 104 (2010) 156401.

  4. "Higher resistance for hole injection and electric field distribution in organic light-emitting diode with copper phthalocyanine interlayer"
    Yutaka Noguchi, Naoki Sato, Yukimasa Miyazaki, Yasuo Nakayama, Hisao Ishii
    Japanese Journal of Applied Physics, in press.

  5. "Origins of improved hole injection by MoO3 layers on a polymeric semiconductor poly(dioctylfluorene-alt-benzothiadiazole)"
    Yasuo Nakayama, Katsuyuki Morii, Yuuichirou Suzuki, Hiroyuki Machida, Satoshi Kera, Nobuo Ueno, Hiroshi Kitagawa, Yutaka Noguchi, Hisao Ishii
    Advanced Functional Materials, 17 (2009) 3746.

  6. "Direct Observation of the Electronic States of Single Crystalline Rubrene under ambient condition by Photoelectron Yield Spectroscopy"
    Yasuo Nakayama, Shinichi Machida, Takeo Minari, Kazuhito Tsukagoshi, Yutaka Noguchi, Hisao Ishii
    Applied Physics Letters, 93 (2008) 173305.

  7. "Charge-up Durability and in-situ Tracking of a Photooxidation Process of Rubrene Studied by Photoelectron Yield Spectroscopy : Toward Photoelectric Investigation on Organic Electronics Devices"
    Shinichi Machida, Yasuo Nakayama, Hisao Ishii
    Hyomen-kagaku (Journal of The Surface Science Society of Japan), 29 (2008) 543-549. (in Japanese)
    SSSJ Paper Award (2009).

  8. "Threshold voltage shift and formation of charge traps induced by light irradiation during the fabrication of organic light-emitting diodes"
    Yutaka Noguchi, Naoki Sato, Yuya Tanaka, Yasuo Nakayama, Hisao Ishii
    Applied Physics Letters, 92 (2008) 203306.

  9. "Photoemission Measurement of Extremely Insulating Materials: Capacitive Photocurrent Detection in Photoelectron Yield Spectroscopy"
    Yasuo Nakayama, Shinichi Machida, Daisuke Tsunami, Yasuo Kimura, Michio Niwano, Yutaka Noguchi, Hisao Ishii
    Applied Physics Letters, 92 (2008) 153306.

  10. "Quantum-Size Effect in Uniform Ge-Sn Alloy Nanodots Observed by Photoemission Spectroscopy"
    Yasuo Nakayama, Keiko Takase, Toru Hirahara, Shuji Hasegawa, Taichi Okuda, Ayumi Harasawa, Iwao Matsuda, Yoshiaki Nakamura, Masakazu Ichikawa
    Japanese Journal of Applied Physics Part 2, 46 (2007) L1176-L1178.

  11. "Electrical conduction of Ge nanodot arrays formed on an oxidized Si surface"
    Yasuo Nakayama, Shiro Yamazaki, Hiroyuki Okino, Toru Hirahara, Iwao Matsuda, Shuji Hasegawa, Masakazu Ichikawa
    Applied Physics Letters, 91 (2007) 123104.

  12. "Interface-structure Dependent Confining Potential Height and Quantized Energy of Ge Nanodots Fabricated onto the Oxidized Si Substrate"
    Yasuo Nakayama,Iwao Matsuda,Shuji Hasegawa,Masakazu Ichikawa
    Hyomen-kagaku (Journal of The Surface Science Society of Japan), 27 (2006) 523-529. (in Japanese)

  13. "Quantum regulation of Ge nanodot state by controlling barrier of the interface layer"
    Yasuo Nakayama, Iwao Matsuda, Shuji Hasegawa, Masakazu Ichikawa
    Applied Physics Letters, 88 (2006) 253102.

  14. "Coordination-dependent valence state of Sm adsorbed on Cu(100) and (110) studied by STM and XPS"
    Yasuo Nakayama, Hiroshi Kondoh, Toshiaki Ohta
    Surface Science, 600 (2006) 2403-2410.

  15. "Quantum confinement observed in Ge nanodots on an oxidized Si surface"
    Alexander Konchenko, Yasuo Nakayama, Iwao Matsuda, Shuji Hasegawa, Yoshiaki Nakamura, Masakazu Ichikawa
    Physical Review B, 73 (2006) 113311.

  16. "Nanometer-scale Mapping of Local Work Function with a Photon-Assisted STM Technique"
    Yasuo Nakayama, Hiroshi Kondoh, Toshiaki Ohta
    Applied Surface Science, 241 (2005) 18-22.

  17. "Structure-dependent mixed valence of Sm on Cu(111) studied by XPS and STM"
    Yasuo Nakayama, Hiroshi Kondoh, Toshiaki Ohta
    Surface Science, 552 (2004) 53-62.

  • Review papers
  1. "How to Probe the Valence Band Structures of Less-Conductive Materials: Photoelectron Yield Spectroscopy and Angle-Resolved Photoelectron Spectroscopy Studies on an Organic Semiconductor Rubrene Single Crystal"
    Yasuo Nakayama
    Solid State Physics, 45(10) (2010) 529-539 [in Japanese].

  2. "Growth, Quantum confinement and Transport mechanisms of Ge nanodot arrays formed on a SiO2 monolayer"
    Yasuo Nakayama, Iwao Matsuda, Shuji Hasegawa, Masakazu Ichikawa
    e-Journal of Surface Science and Nanotechnology, 6 (2008) 191-201.

  • Proceedings (First author only)
  1. "Photoemission Studies on a Neutral Radical Molecular Crystal of a Tetrathiafulvalene-Based Nitronyl Nitroxide"
    Yasuo Nakayama, Shin-ichi Machida, Yutaka Noguchi, Hisao Ishii, Hideji Komatsu, Michio M. Matsushita and Tadashi Sugawara
    UVSOR Activity Report 2009 (2010) 140.

  2. "Light Effective Mass in the Widely-Dispersed Valence Band of Single Crystalline Rubrene Observed by High-Resolution Angle-Resolved Ultraviolet Photoelectron Spectroscopy"
    Yasuo Nakayama, Shin-ichi Machida, Steffen Duhm, Qian Xin, Akihiro Funakoshi, Naoki Ogawa, Satoshi Kera, Nobuo Ueno, Yutaka Noguchi, Hisao Ishii
    Proceedings of 2009 MRS Fall Meeting, 1197 (2010) D07-31-1〜6.

  3. "Electronic Structures of Single Crystalline Rubrene Studied by Photoemission Measurement Techniques"
    Yasuo Nakayama, Shinichi Machida, Takuya Kubo, Akihiro Funakoshi, Naoki Ogawa, Takeo Minari, Kazuhito Tsukagoshi, Hisao Ishii
    UVSOR Activity Report 2008 (2009) 70.

  4. "Quantum confinement in uniform GeSn? alloy nanodots on a SiO2 monolayer"
    Yasuo Nakayama, Keiko Takase, Toru Hirahara, Shuji Hasegawa, Iwao Matsuda, Yoshiaki Nakamura, Masakazu Ichikawa
    Photon Factory Activity Report Part B, 25 (2008) 55.

  5. "Electronic Structures of Rubrene and Its Photooxidation Product"
    Yasuo Nakayama, Shinichi Machida, Takeo Minari, Kazuhito Tsukagoshi, Hisao Ishii
    UVSOR Activity Report 2007 (2008) 145.

  6. "Change in conductivity through the space-charge layer of the Si substrate induced by Ge nanodot arrays probed by means of Si-2p photoemission"
    Yasuo Nakayama, Hiroyuki Okino, Toru Hirahara, Iwao Matsuda, Shuji Hasegawa, Masakazu Ichikawa
    Photon Factory Activity Report Part B, 24 (2007) 46.

  7. "Band-bending induced by Ge nanodot array at Si(111) covered by an ultrathin SiO2 film"
    Yasuo Nakayama, Toru Hirahara, Hiroyuki Okino, Iwao Matsuda, Shuji Hasegawa, Masakazu Ichikawa
    ISSP Activity Report of Synchrotron Radiation Laboratory 2005 (2006) 57-58.

  8. "Trivalent Sm on Cu(111) at and above room temperature"
    Yasuo Nakayama, Hiroshi Kondoh, Kenta Amemiya, Toshihiko Yokoyama, Toshiaki Ohta
    KEK Progress Report, 2001-2 (2001) 53.

Conference Contributions

  • International Conference on Science and Technology of Synthetic Metals (ICSM2010); Kyoto, Japan, Jul./2010
  • International Symposium on Organic Transistors and Functional Interfaces 2010 (OFET2010); Les Diablerets, Switzerland, May/2010
  • The 5th edition of the international workshop on "Electronics Structure and Processes at Molecular-Based Interfaces" (ESPMI-V); Chiba (Japan), Jan./2010
  • Material Research Society 2009 Fall Meeting; Boston (USA), Nov./2009
  • Workshop on Organic Electronics: Electronic States, Charge Transport and Devices; Chiba (Japan), Nov./2009
  • 11th International Conference on Electronic Spectroscopy and Structure (ICESS11); Nara (Japan), Oct./2009
  • Fifth International Conference on Molecular Electronics and Bioelectronics (M&BE5); Miyazaki (Japan), Mar./2009
  • Workshop on Electrical and Electronic Properties in Crystalline Thin Films of Small Molecules; Chiba (Japan), Dec./2008 [A member of the organizing committee]
  • The 5th International Symposium on Surface Science and Nanotechnology (ISSS-5); Tokyo (Japan), Nov./2008
  • The 4th International Workshop on Electronic Structure and Processes at Molecular-Based Interfaces (ESPMI IV); Princeton (USA), Jun./2008
  • The 4th Japan-Sweden Workshop on Advanced Spectroscopy of Organic Materials for Electronic Application (ASOMEA-4); Chiba (Japan), Oct./2007 [A member of the local organizing committee]
  • The 17th International Vacuum Congress (IVC17); Stockholm (Sweden), Jul./2007
  • The 10th ISSP International Symposium on Nanoscience at Surfaces; Kashiwa (Japan), Oct./2006
  • 24th European Conference on Surface Science (ECOSS-24); Paris (France), Sep./2006
  • JSPS-KOSEF-NSFC A3 foresight program 1st project seminar; Funabashi (Japan), Mar./2006
  • 4th International Symposium on Surface Science and Nanotechnology (ISSS-4); Saitama (Japan), Nov./2005
  • 9th International Symposium on Advanced Physical Fields (APF9); Tsukuba (Japan), Mar./2004
  • 9th International Conference on Electron Spectroscopy and Structure (ICESS-9); Uppsala (Sweden), Jun./2003
  • 19th European Conference on Surface Science (ECOSS-19); Madrid (Spain), Sep./2000


Contact information
 Tel: +81-(0)43-290-3248
 E-mail: nkym_at_restaff.chiba-u.jp (replace "_at_" by "@")

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