Electronic function of organic semiconductor mediated by weak perturbation:Elucidation of misterius properties of organic device interfaces

• Project/Area Number: 24245034
• Research Category: Grant-in-Aid for Scientific Research (A)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Functional materials/Devices
• Research Institution: Chiba University
• Principal Investigator: UENO Nobuo 千葉大学, 融合科学研究科(研究院), 特任研究員 (40111413)
• Co-Investigator(Kenkyū-buntansha): KERA Satoshi 分子科学研究所, 教授 (10334202)
• Project Period (FY): 2012-04-01 – 2015-03-31
• Project Status: Completed (Fiscal Year 2014)
• Budget Amount: ¥44,200,000 (Direct Cost: ¥34,000,000、Indirect Cost: ¥10,200,000); Fiscal Year 2014: ¥13,390,000 (Direct Cost: ¥10,300,000、Indirect Cost: ¥3,090,000); Fiscal Year 2013: ¥13,130,000 (Direct Cost: ¥10,100,000、Indirect Cost: ¥3,030,000); Fiscal Year 2012: ¥17,680,000 (Direct Cost: ¥13,600,000、Indirect Cost: ¥4,080,000)
• Keywords: 有機半導体 / 有機デバイス / 界面 / エネルギー準位接合 / 電荷移動度 / 光電子分光 / 電子状態 / 電子-振動結合 / 移動度 / バンド分散

Outline of Final Research Achievements

Ultrahigh-sensitivity ultraviolet photoelectron spectroscopy (UPS) was realized for radiation-sensitive organic materials and was used to investigate electronic states in band gap of organic semiconductors. The results show the striking effects for pentacene: exposure to inert gas (N2 and Ar) produces gap states and pushes the Fermi level closer to the valence band. The results demonstrate that these gap states originate from small imperfections in the molecular packing structure, which impact on the energy level alignment in various organic devices. Electronic band dispersions in insulating picene single crystals were measured by UPS coupled with laser-induced photoconductivity. Based on these fundamental studies, we fabricated C60 transistors using structure-controlled C60 thin film on DIP template/SiO2 gate insulator, and found that high electron mobility and high operational stability are achieved with the gap-states controlled C60 thin film transistors on the DIP/SiO2 gate.

Research Products

• [Journal Article] Origin of the energy level alignment at organic/organic interfaces : The role of structural defects (2014)
  • Author(s): F. Bussolotti, J. Yang, A. Hinderhofer, Y. -L. Huang, W. Chen, S. Kera, A. T. S. Wee, and N. Ueno
  • Journal Title: Phys. Rev. B Volume: 89 Issue: 11
  • DOI: 10.1103/physrevb.89.115319
  • Peer Reviewed / Open Access
• [Journal Article] Molecular structure-dependent charge injection and doping efficiencies of organic semiconductors: Impact of side chain substitution (2014)
  • Author(s): Jinpeng Yang, Yanqing Li, Steffen Duhm, Jianxin Tang, Satoshi Kera, and Nobuo Ueno
  • Journal Title: Adv. Mater. Interfaces Volume: 2014 Issue: 3
  • DOI: 10.1002/admi.201300128
  • Peer Reviewed / Open Access / Acknowledgement Compliant
• [Journal Article] Structural defects control the energy level alignment at organic-organic interfaces (2014)
  • Author(s): K. Yonezawa, A. Hinderhofer, T. Hosokai, K. Kato, R. Makino, F. Schreiber, N. Ueno, and S. Kera
  • Journal Title: Adv. Mater. Interface Volume: (印刷中) Issue: 5 Pages: 2969-2992
  • DOI: 10.1002/admi.201400004
  • Peer Reviewed / Open Access
• [Journal Article] Impact of film structure on ionization energy of titanyl-phthalocyanine thin film (2014)
  • Author(s): Takuya Hosokai, Keiichiro Yonezawa, Rintaro Makino, Noritsugu Kanayama, Tomoyuki Koganezawa, Koji K. Okudaira, Satoshi Kera, and Nobuo Ueno
  • Journal Title: MRS Online Proceedings Library (2013 JSAP-MRS Joint Symposia proceedings) Volume: 1605 Pages: 1-6
  • DOI: 10.1557/opl.2013.1152
  • Peer Reviewed / Open Access / Acknowledgement Compliant
• [Journal Article] Structural requirement for surface-induced aromatic stabilization (2014)
  • Author(s): Takuya Hosokai, Keiichirou Yonezawa, Kengo Kato, Rintaro Makino, Jinpeng Yang, Kaveenga Rasika Koswattage, Alexander Gerlach, Frank Schreiber, Nobuo Ueno, and Satoshi Kera
  • Journal Title: MRS Proceedings Volume: 1647 Pages: 1-4
  • DOI: 10.1557/opl.2014.348
  • Peer Reviewed / Open Access / Acknowledgement Compliant
• [Journal Article] Impact of molecular orbital distribution on photoelectron intensity for picene film (2014)
  • Author(s): Yuan Liu, Daisuke Ikeda, Shin-ichi Nagamatsu, Tatsuhiko Nishi, Nobuo Ueno, and Satoshi Kera
  • Journal Title: J. Electron Spectr. and Rel. Phenom. Volume: 195 Pages: 287-292
  • DOI: 10.1016/j.elspec.2014.06.003
  • Peer Reviewed / Open Access / Acknowledgement Compliant
• [Journal Article] Interface optimization using diindenoperylene for C60 thin film transistors with high electron mobility and high stability (2014)
  • Author(s): Jin-Peng Yang, Qi-Jun Sun, Keiichiro Yonezawa, Alexander Hinderhofer, Fabio Bussolotti, Xu Gao, Nobuo Ueno, Sui-Dong Wang, and Satoshi Kera
  • Journal Title: Org. Electronics Volume: 15 Issue: 11 Pages: 2749-2755
  • DOI: 10.1016/j.orgel.2014.07.010
  • Peer Reviewed / Open Access / Acknowledgement Compliant
• [Journal Article] A striking mobility improvement of C60 OFET by inserting diindenoperylene layer between C60 and SiO2 gate insulator (2014)
  • Author(s): Jin-Peng Yang, Keiichirou Yonezawa, Alexander Hinderhofer, Fabio Bussolotti, Satoshi Kera, and Nobuo Ueno
  • Journal Title: SPIE Proceedings Volume: 9165 Pages: 91651N-91651N
  • DOI: 10.1117/12.2063522
  • Peer Reviewed / Open Access / Acknowledgement Compliant
• [Journal Article] Seleno groups control the energy-level alignment between conjugated organic molecules and metals (2014)
  • Author(s): J.Niederhausen, S.Duhm, G.Heimel, C.Burker, Q.Xin, A.Wilke, A.Vollmer, F.Schreiber, S.Kera, J.P.Rabe, N.Ueno, and N.Koch
  • Journal Title: J. Chem. Phys. Volume: 140 Issue: 1
  • DOI: 10.1063/1.4858856
  • Peer Reviewed
• [Journal Article] Energy Level Realignment in Weakly Interacting Donor-Acceptor Binary Molecular Networks (2014)
  • Author(s): J.-Q.Zhong, X.Qin, JiaLin Zhang, S.Kera, N.Ueno, A.T.S.Wee, J.Yang, W.Chen
  • Journal Title: ACS Nano Volume: 8 (2) Issue: 2 Pages: 1699-1707
  • DOI: 10.1021/nn406050e
  • Peer Reviewed
• [Journal Article] Charged and Metallic Molecular Monolayers through Surface-Induced Aromatic Stabilisation (2013)
  • Author(s): G. Heimel, S. Duhm, I. Salzmann, A.Gerlach, A.Strozecka, J.Niederhausen, C.Burker, T.Hosokai, I.Fernandez-Torrente, G.Schulze, S.Winkler, A.Wilke, R.Schlesinger, J.Frisch, B.Broker, A.Vollmer, B.Detlefs, J.Pflaum, S.Kera,K.J.Franke, N.Ueno, J.I.Pascual, F.Schreiber, and N.Koch
  • Journal Title: Nature Chemistry Volume: 5 Issue: 3 Pages: 187-194
  • DOI: 10.1038/nchem.1572
  • Peer Reviewed
• [Journal Article] Impact of molecule-dipole orientation on the energy level alignment at sub-molecular scale (2013)
  • Author(s): Y. L. Huang
  • Journal Title: Phys. Rev. B Volume: 87 Issue: 8
  • DOI: 10.1103/physrevb.87.085205
  • Peer Reviewed
• [Journal Article] Recoil effects in valence bands photoemission of organic solids (2013)
  • Author(s): M. Shang, T. Fujikawa, and N. Ueno
  • Journal Title: Anal. Chem. Volume: 85 Issue: 7 Pages: 3739-3745
  • DOI: 10.1021/ac4000865
  • Peer Reviewed
• [Journal Article] Inverted polymer solar cells integrated with small molecular electron collection layer (2013)
  • Author(s): A.-L.Shi, Y.-Q.Li, Z.-Q.Xu, F.-Z.Sun, J.Li,X.-B.Shi, H.-X.Wei, S.-T.Lee, S.Kera, N.Ueno, and J.-X.Tang
  • Journal Title: Org. Electronics Volume: 14 Issue: 7 Pages: 1844-1851
  • DOI: 10.1016/j.orgel.2013.04.029
  • Peer Reviewed
• [Journal Article] Gap States In Pentacene Thin Film Induced By Inert Gas Exposure (2013)
  • Author(s): F.Bussolotti, S.Kera, K.Kudo, A.Kahn and N.Ueno
  • Journal Title: Phys .Rev. Lett. Volume: 110 Issue: 26
  • DOI: 10.1103/physrevlett.110.267602
  • Peer Reviewed
• [Journal Article] Experimental reorganization energies of pentacene and perfluoropentacene : Effects of perfluorination (2013)
  • Author(s): S.Kera, S.Hosoumi, K.Sato, H.Fukagawa, S.Nagamatsu, Y.Sakamoto, T.Suzuki, H.Huang, W.Chen, A.T.S.Wee, V.Coropceanu, and N.Ueno
  • Journal Title: J. Phys. Chem. C Volume: 117 Issue: 43 Pages: 22428-22437
  • DOI: 10.1021/jp4032089
  • Peer Reviewed
• [Journal Article] Electron affinity of pentacene thin film studied by radiation-damage free inverse photoemission spectroscopy (2013)
  • Author(s): W.N.Han, H.Yoshida, N.Uneo, and S.Kera
  • Journal Title: Appl. Phys. Lett. Volume: 103 Issue: 12
  • DOI: 10.1063/1.4821445
  • NAID: 120006892717
  • Peer Reviewed
• [Journal Article] Pentacene on Ag(111) : Correlation of bonding distance with intermolecular interaction and order (2013)
  • Author(s): S.Duhm, C.Burker, J.Niederhausen, I.Salzmann, T.Hosokai, J.Duvernay, S.Kera, F.Schreiber, N.Koch, N.Ueno, and A.Gerlach
  • Journal Title: ACS Appl. Mater Interfaces Volume: 5(19) Issue: 19 Pages: 9377-9381
  • DOI: 10.1021/am402778u
  • Peer Reviewed
• [Journal Article] Quantitatively identical orientation-dependent ionization energy and electron affinity of diindenoperylene (2013)
  • Author(s): W. N. Han, K. Yonezawa, R. Makino, K. Kato, A. Hinderhofer, R. Murdey, R. Shiraishi, H. Yoshida, N. Sato, N. Ueno, and S. Kera
  • Journal Title: Appl. Phys. Lett. Volume: 103 Issue: 25 Pages: 253301-253301
  • DOI: 10.1063/1.4850531
  • NAID: 120007087975
  • Peer Reviewed
• [Journal Article] Electronic States of Organic Semiconductors and Their Interfaces by Using Photoelectron Spectroscopy (2013)
  • Author(s): S. Kera
  • Journal Title: Journal of the Vacuum Society of Japan Volume: 56 Issue: 1 Pages: 18-23
  • DOI: 10.3131/jvsj2.56.18
  • NAID: 10031145733
  • ISSN: 1882-2398, 1882-4749
  • Peer Reviewed
• [Journal Article] Geometric and electronic structure of template C60 0n diindenoperylene thin films (2013)
  • Author(s): A. Hinderhofer, A. Gerlach, K. Broch, T. Hosokai, K. Yonezawa, K. Kato, S. Kera, N. Ueno
  • Journal Title: J.Phys.Chem Volume: 117 Issue: 2 Pages: 1053-1058
  • DOI: 10.1021/jp3106056
  • Peer Reviewed
• [Journal Article] Electric-field-assisted charge generation and separation process in transition metaloxide-based interconnectors for tandem organic light-emitting diodes (2012)
  • Author(s): J.-P.Yang, Y.Xiao, Y.-H.Deng, S.Duhm, N. Ueno, S.-T.Lee, Y.-Q. Li, J.-X.Tang
  • Journal Title: Advanced Functional Materials Volume: 22(3) Issue: 3 Pages: 600-608
  • DOI: 10.1002/adfm.201102136
  • Peer Reviewed
• [Journal Article] Correlating Temperature Dependent Electrical Transport Through Alkyl Monolayers with vibrational and Photoelectron Spectroscopies, Shpaisman (2012)
  • Author(s): H.Shpaisman, O.Seitz, O.Yaffe, K.Roodenko, L.Scheres, H.Zuilhof, Y.J.Chabal, T.Sueyoshi, S.Kera, N.Ueno, A.Vilan, D.Cahen
  • Journal Title: Chemical Science Volume: 3 Issue: 3 Pages: 851-862
  • DOI: 10.1039/c1sc00639h
  • Peer Reviewed
• [Journal Article] Charge reorganization energy and small polaron binding energy of rubrene thin films by ultraviolet photoelectron spectroscopy (2012)
  • Author(s): S. Duhm, Q. Xin, S. Hosoumi, H. Fukagawa, K. Sato, N. Ueno, S. Kera
  • Journal Title: Adv. Mat Volume: 27-7 Issue: 7 Pages: 901-905
  • DOI: 10.1002/adma.201103262
  • Peer Reviewed
• [Journal Article] Reversible single-molecule switching in an ordered monolayer molecular dipole array (2012)
  • Author(s): Y.L.Huang, et al.
  • Journal Title: Small Volume: 8 Issue: 9 Pages: 1423-1428
  • DOI: 10.1002/smll.201101967
  • Peer Reviewed
• [Journal Article] Recoil Effects in Valence Photoemission from Simple Molecules and Clusters (2012)
  • Author(s): M.-H. Shang, T. Fujikawa, and N. Ueno
  • Journal Title: e-Journal of Surface Science and Nanotechnology Volume: 10 Issue: 0 Pages: 128-132
  • DOI: 10.1380/ejssnt.2012.128
  • NAID: 130004438800
  • ISSN: 1348-0391
  • Peer Reviewed
• [Journal Article] Accessing surface Brillouin zone and band structure of picene single crystals (2012)
  • Author(s): Q. Xin, S.Duhm, F.Bussolotti, K.Akaike, Y.Kubozono, H.Aoki, T.Kosugi, S.Kera, and N.Ueno
  • Journal Title: Phys. Rev. Lett. Volume: 108 Issue: 22
  • DOI: 10.1103/physrevlett.108.226401
  • Peer Reviewed
• [Journal Article] Post-growth surface smoothing of thin fims of diindenoperylene (2012)
  • Author(s): A. Hinderhofer, T. Hosokai, K.Yonezawa, A. Gerlach, K. Broch, C. Frank, K. Kato, J. Novak, S. Kera, N. Ueno, and F. Schreiber
  • Journal Title: Appl. Phys. Lett. Volume: 101 Issue: 3
  • DOI: 10.1063/1.4737168
  • Peer Reviewed
• [Journal Article] Potassium doping of single crystalline pentacene thin film (2012)
  • Author(s): F.Bussolotti, S.Kera, and N.Ueno
  • Journal Title: Phys. Rev. Volume: B 86 Issue: 15
  • DOI: 10.1103/physrevb.86.155120
  • Peer Reviewed
• [Presentation] ペンタセン単結晶の内殻準位および価電子バンド構造の実測 (2015)
  • Author(s): 中山泰生，山本真之，水野裕太，浦上裕希，米澤恵一朗，金城拓海，間瀬一彦，解良聡，松波雅治，石井久夫，上野信雄
  • Organizer: 第70回日本物理学会年次大会（2015年春期年会
  • Place of Presentation: 早稲田大学 早稲田キャンパス
  • Year and Date: 2015-03-21 – 2015-03-25
• [Presentation] アルカリ土類金属酸化物の軟 X 線吸収スペクトル (2015)
  • Author(s): 奥平幸司, 井岡雄以, 小林英一, 上野信雄
  • Organizer: 第28回日本放射光学会年会・放射光科学合同シンポジウム
  • Place of Presentation: 立命館大学びわこ･くさつキャンパス
  • Year and Date: 2015-01-10 – 2015-01-12
• [Presentation] Origin and control of gap states: A striking mobility improvement of C60 OFET (2015)
  • Author(s): J.-P. Yang, F. Bussolotti, A. Hinderhofer, S. Kera and N. Ueno
  • Organizer: Int. Conf. on Molecular Electronic Materials and Devices (MEMD2015)
  • Place of Presentation: City Univ. of Hong Kong, Hong Kong
  • Year and Date: 2015-01-05 – 2015-01-08
  • Invited
• [Presentation] Origin and role of gap states as a universal feature of molecular solids (2014)
  • Author(s): 5.F. Bussolotti, J.-P. Yang, K. Yonezawa, A. Hinderhofer, S. Kera and N. Ueno
  • Organizer: 578th Wilhelm and Else Heraeus-Seminar (WEH Seminar) on “Charge-Transfer Effects in Organic Heterostructures: Fundamentals and Applications”
  • Place of Presentation: Bad Honnef, Germany
  • Year and Date: 2014-12-09 – 2014-12-12
  • Invited
• [Presentation] Charged and metallic molecular monolayers through surface-induced aromatic stabilisation (2014)
  • Author(s): G. Heime, S. Duhm, I. Salzmann, A. Gerlach, A. Strozecka, J. Niederhausen, C. Broeker, T. Hosokai, I. Fernandez-Torrente, G. Schulze, S. Winkler, A. Wilke, R. Schlesinger, J. Frisch, B. Bröker, A. Vollmer, B. Detlefs, J. Pflaum, S. Kera, K. J. Franke, N. Ueno, J. I. Pascual, F. Schreiber, and N. Koch
  • Organizer: 578th Wilhelm and Else Heraeus-Seminar (WEH seminar) on “Charge-Transfer Effects in Organic Heterostructures: Fundamentals and Applications”
  • Place of Presentation: Bad Honnef, Germany
  • Year and Date: 2014-12-09 – 2014-12-12
• [Presentation] On the nature of organic semiconductors: Improving the mobility and stability of organic devices (2014)
  • Author(s): Nobuo Ueno
  • Organizer: The 8th Energy, Materials, and Nanotechnology (EMN) Fall Meeting 2014
  • Place of Presentation: Orlando, FL, USA
  • Year and Date: 2014-11-22 – 2014-11-25
  • Invited
• [Presentation] 有機半導体の本性と界面の未解決問題 (2014)
  • Author(s): 上野信雄
  • Organizer: 応用物理学会・M&BE講習会「 有機半導体デバイスの界面分析の基礎と応用」
  • Place of Presentation: 産業技術総合研究所、臨海副都心センター別館
  • Year and Date: 2014-11-10
  • Invited
• [Presentation] 高分解能電子エネルギー損失分光法によるヘテロ分子間相互作用 (2014)
  • Author(s): 岩澤 和明、西村 孝宏、佐藤 一至、上野 信雄、解良 聡
  • Organizer: 第8回分子科学討論会
  • Place of Presentation: 広島大学 東広島キャンパス
  • Year and Date: 2014-09-21 – 2014-09-24
• [Presentation] 有機分子間σ軌道方向の相互作用が誘起する非対称分散 (2014)
  • Author(s): 山口拓真, 米澤恵一朗, 加藤賢悟, 牧野凜太朗, 松下智昭, 奥平幸司, 上野信雄, 解良聡
  • Organizer: 第8回分子科学討論会
  • Place of Presentation: 広島大学 東広島キャンパス
  • Year and Date: 2014-09-21 – 2014-09-24
• [Presentation] 光電子分光法による有機ＥＬデバイス用Be錯体の分子間相互作用と電子状態評価 (2014)
  • Author(s): 高橋理記，牧野凜太朗, 加藤賢悟, 米澤恵一朗, 鎌田太介, 深川弘彦, 解良聡, 上野信雄
  • Organizer: 第8回分子科学討論会
  • Place of Presentation: 広島大学 東広島キャンパス
  • Year and Date: 2014-09-21 – 2014-09-24
• [Presentation] π共役長に依存したフェナセン系配向制御膜のイオン化エネルギー (2014)
  • Author(s): 牧野凜太朗, 米澤恵一朗, 細貝拓也, 加藤賢悟, 山口拓真, 松下智昭, 奥平幸司, 上野信雄, 解良聡
  • Organizer: 第8回分子科学討論会
  • Place of Presentation: 広島大学 東広島キャンパス
  • Year and Date: 2014-09-21 – 2014-09-24
• [Presentation] 分子-基板相互作用による有機分子単層膜のイオン化エネルギー変化 (2014)
  • Author(s): 井岡雄以, 米澤恵一朗, 牧野凛太朗, 田子達寛, 解良聡, 上野信雄, 奥平幸司
  • Organizer: 第8回分子科学討論会
  • Place of Presentation: 広島大学 東広島キャンパス
  • Year and Date: 2014-09-21 – 2014-09-24
• [Presentation] 有機- 金属接合から有機側へ広がる波動関数の検出 (2014)
  • Author(s): 細貝拓也，米澤恵一朗，加藤賢悟，牧野凜太朗，上野信雄，解良 聡
  • Organizer: 第75回応用物理学会秋季学術講演会
  • Place of Presentation: 北海道大学札幌キャンパス
  • Year and Date: 2014-09-17 – 2014-09-20
• [Presentation] エチレングリコールを添加したPEDOT：PSS 膜の膜構造及び電子状態評価 (2014)
  • Author(s): 田中正人，奥平幸司，上野信雄
  • Organizer: 第75回応用物理学会秋季学術講演会
  • Place of Presentation: 北海道大学札幌キャンパス
  • Year and Date: 2014-09-17 – 2014-09-20
• [Presentation] 超格子ヘテロ分子単層膜における非占有電子状態変化 (2014)
  • Author(s): 須田洋輔，米澤恵一朗，山田一斗，吉田弘幸，佐藤直樹，柳澤 将，奥平幸司，上野信雄，解良 聡
  • Organizer: 第75回応用物理学会秋季学術講演会
  • Place of Presentation: 北海道大学札幌キャンパス
  • Year and Date: 2014-09-17 – 2014-09-20
• [Presentation] A striking mobility improvement of C60 OFET by inserting diindenoperylene layer between C60 and SiO2 gate insulator (2014)
  • Author(s): Jin Peng Yang, Keiichiro Yonezawa, Alexander Hinderhofer, Fabio Bussolotti, Satoshi Kera, and Nobuo Ueno
  • Organizer: SPIE NanoScience + Engineering, part of SPIE Optics + Photonics symposium
  • Place of Presentation: San Diego, CA, United States
  • Year and Date: 2014-08-17 – 2014-08-21
• [Presentation] Photoelectron spectroscopy of organic solids: Methods for unraveling their mysterious properties (2014)
  • Author(s): Nobuo Ueno
  • Organizer: Master-class Lecture
  • Place of Presentation: Lund University, Sweden
  • Year and Date: 2014-06-12
  • Invited
• [Presentation] Energy level alignment at organic/inorganic organic/organic interfaces: The key role of density of gap states (2014)
  • Author(s): F. Bussolotti, J. Yang, A. Hinderhofer, S. Kera and N. Ueno
  • Organizer: 7th Swedish-Japanese-German Workshop on Advanced Spectroscopy of Organic Materials for Electronic Applications
  • Place of Presentation: Lund, Sweden
  • Year and Date: 2014-06-08 – 2014-06-11
• [Presentation] Origin of the energy-level alignment at binary molecular monolayer (2014)
  • Author(s): K. Yonezawa, J. L. Zhang, S. Yanagisawa, T. Matsushita, R. Makino, K. Kato, A. Hinderhofer, A. T. S. Wee, W. Chen, N. Ueno, and S. Kera
  • Organizer: 7th Swedish-Japanese-German Workshop on Advanced Spectroscopy of Organic Materials for Electronic Applications
  • Place of Presentation: Lund, Sweden
  • Year and Date: 2014-06-08 – 2014-06-11
• [Presentation] Band dispersion measurements of lead-phthalocyanine single crystal by angle-resolved time of flight spectroscopy (2014)
  • Author(s): K. Sato, S. Duhm, T. Kaji, M. Hiramoto, R. Ovsyannikov, M. Gorgoi, S. Krause, M. Oehzelt, N. Maartensson, S. Svensson, N. Ueno, and S. Kera
  • Organizer: 7th Swedish-Japanese-German Workshop on Advanced Spectroscopy of Organic Materials for Electronic Applications
  • Place of Presentation: Lund, Sweden
  • Year and Date: 2014-06-08 – 2014-06-11
• [Presentation] Organic photoelectron spectroscopy: 40 years to the nature of organic semiconductor crystals (2014)
  • Author(s): Nobuo Ueno
  • Organizer: The 7th Swedish-Japanese-German Workshop
  • Place of Presentation: Lund, Sweden
  • Year and Date: 2014-06-04 – 2014-06-11
  • Invited
• [Presentation] Gap states in pentacene produced by inert-gas exposure:Direct detection by ultrahigh-sensitivity UPS (2013)
  • Author(s): Fabio Bussolotti, Satoshi Kera, Kazuhiro Kudo, Antoine Kahn and Nobuo Ueno
  • Organizer: The 7th international workshop on "Electronic Structure and Processes at Molecular-Based Interfaces"(ESPMI-VII)
  • Place of Presentation: Weizmann Institute of Science, Rehovoth, Israel
  • Invited
• [Presentation] A Novel Intermolecular Interaction Mediated by Intramolecular Polar Bonds at Organic Heterojunction (2013)
  • Author(s): K. Yonezawa, Jia-Lin Zhang, See Liang Wong, Tianchao Niu, Alexander Hinderhofer, Wei Chen, Nobuo Ueno, Satoshi Kera
  • Organizer: The 7th international workshop on "Electronic Structure and Processes at Molecular-Based Interfaces" (ESPMI-VII)
  • Place of Presentation: Weizmann Institute of Science, Rehovoth, Israel
• [Presentation] Molybrenum Trioxide Doped C60: Charge Transfer State Studied by Ultraviolet Photoemission Spectroscopy (2013)
  • Author(s): JP. Yang, S. Kera, N. Ueno
  • Organizer: The 7th international workshop on "Electronic Structure and Processes at Molecular-Based Interfaces" (ESPMI-VII)
  • Place of Presentation: Weizmann Institute of Science, Rehovoth, Israel
• [Presentation] Impact of structural order on the electronic level alignment of organic heterostructures (2013)
  • Author(s): A. Hinderhofer, K. Yonezawa, T. Hosokai, K. Kato, F. Schreiber, S. Kera, N. Ueno
  • Organizer: The 7th international workshop on "Electronic Structure and Processes at Molecular-Based Interfaces" (ESPMI-VII)
  • Place of Presentation: Weizmann Institute of Science, Rehovoth, Israel
• [Presentation] Anisotropy of electron-phonon coupling for pentacene monolayer (2013)
  • Author(s): S. Kera , F. Bussolotti, and N. Ueno
  • Organizer: The 7th international workshop on "Electronic Structure and Processes at Molecular-Based Interfaces" (ESPMI-VII)
  • Place of Presentation: Weizmann Institute of Science, Rehovoth, Israel
  • Invited
• [Presentation] Potassium doping of single crystalline pentacene thin film: Can pentacene become a Mott-Hubbard insulator? (2013)
  • Author(s): F. Bussolotti, S. Kera, N. Ueno
  • Organizer: The 38th international conference on vacuum ultraviolet and x-ray physics (VUVX2013)
  • Place of Presentation: Hefei, China
• [Presentation] Electronic property and the nature of organic semiconductor (2013)
  • Author(s): Nobuo Ueno
  • Organizer: 14th International Conference on Formation of Semiconductor Interfaces (ICFSI-14)
  • Place of Presentation: Hyundai Hotel, Gyeongju, Korea
  • Invited
• [Presentation] A universal property of molecular crystals probed with ultrahigh-sensitivity photoelectron spectroscopy: Band-gap states appear by weak perturbation and control the energy level alignment (2013)
  • Author(s): Nobuo Ueno
  • Organizer: The 11th China-Japan Joint Symp. on Conduction and Photoconduction in Organic Solids and Related Phenomena
  • Place of Presentation: Changchun, China
  • Invited
• [Presentation] Electron affinity of pentacene thin film studied by radiation-damage free inverse photoemission spectroscopy (2013)
  • Author(s): W. Han, H. Yoshida, N. Ueno, and S. Kera
  • Organizer: The 11th China-Japan Joint Symp. on Conduction and Photoconduction in Organic Solids and Related Phenomena
  • Place of Presentation: Changchun, China
• [Presentation] Geometric and Electronic Structure of Templated C60 on DIP, the 11th China-Japan Joint Symposium on Conduction and Photoconduction in Organic Solids and Related Phenomena (2013)
  • Author(s): A. Hinderhofer, A. Gerlach, K. Broch, T. Hosokai, K. Yonezawa, K. Kato, J. Yang, Q. Sun, S. D. Wang, S. Kera, N. Ueno, F. Schreiber
  • Organizer: The 11th China-Japan Joint Symp. on Conduction and Photoconduction in Organic Solids and Related Phenomena
  • Place of Presentation: Changchun, China
• [Presentation] The nature of organic semiconductors: Universal origin of their peculiar electronic properties (2013)
  • Author(s): Nobuo Ueno
  • Organizer: The Kyoto JSAP-MRS joint meeting
  • Place of Presentation: Kyoto、Japan
  • Invited
• [Presentation] Reinvestigation of the band-gap energy of pentacene thin film (2013)
  • Author(s): W. Han, H. Yoshida, N. Ueno, and S. Kera
  • Organizer: The Kyoto JSAP-MRS joint meeting
  • Place of Presentation: Kyoto, Japan
• [Presentation] Impact of structural defects on the energy level alignment at organic-organic iintefaces (2013)
  • Author(s): K. Yonezawa, A. Hinderhofer, T. Hosokai, K. Kato, F. Schreiber, N. Ueno and S. Kera
  • Organizer: The Kyoto JSAP-MRS joint meeting
  • Place of Presentation: Kyoto, Japan
• [Presentation] Impact of film structure on ionization energy of titanyl-phthalocyanine in thin film (2013)
  • Author(s): T. Hosokai, K. Yonezawa, T. Kanayama, T. Koganezawa, K.K. Okudaira, S. Kera and N. Ueno
  • Organizer: The Kyoto JSAP-MRS joint meeting
  • Place of Presentation: Kyoto, Japan
• [Presentation] Molecular-orientation dependent ionization energy of picene films (2013)
  • Author(s): Rintaro Makino, Keiichirou Yonezawa, Kengo Kato, Alexander Hinderhofe, Takuya Hosokai, Koji K. Okudaira, Nobuo Ueno, Satoshi Kera
  • Organizer: The Kyoto JSAP-MRS joint meeting
  • Place of Presentation: Kyoto, Japan
• [Presentation] Surface-induced aromatic stabilization of disc-like conjugated molecules (2013)
  • Author(s): Steffen Duhm, Benjamin Broker, Alexander Gerlach, Christoph Burker, Jens Niederhausen, Ingo Salzmann, Takuya Hosokai, Jorg Zegenhagen, Antje Vollmer, Ralph Rieger, Satoshi Kera, Klaus Mullen, Nobuo Ueno, Frank Schreiber and Norbert Koch
  • Organizer: The Kyoto JSAP-MRS joint meeting
  • Place of Presentation: Kyoto, Japan
• [Presentation] Band-gap states related to the nature of organic semiconductors controls the energy level alignment (2013)
  • Author(s): Nobuo Ueno
  • Organizer: Asian Pacific Conference on Chemistry of Materials (APCCOM2013)
  • Place of Presentation: City University of Hong Kong, Hong Kong
  • Invited
• [Presentation] Structural requirement on the surface-induced aromatic stabilization (2013)
  • Author(s): T. Hosokai, K. Yonezawa, K. Kato, R. Makino, J. Yang, K. R. Koswattage, A. Gerlach, F. Schreiber, N. Ueno and S. Kera
  • Organizer: MRS fall meeting 2013
  • Place of Presentation: Boston, USA
• [Presentation] The effect of molecular adsorption-geometry on the binding energy of interface states (2013)
  • Author(s): K. Kato, K. Sato, K.Yonezawa, Y. Liu, T. Hosokai, S. Yanagisawa, K. R. Koswattage, N. Ueno, S. Kera
  • Organizer: MRS fall meeting 2013
  • Place of Presentation: Boston, USA
• [Presentation] Large impact of molecular orientation on ionization energy: picene film (2013)
  • Author(s): R. Makino, K. Yonezawa, K. Kato, A. Hinderhofer, T. Hosokai1, K. K. Okudaira, N. Ueno, and S. Kera
  • Organizer: MRS fall meeting 2013
  • Place of Presentation: Boston, USA
• [Presentation] Impact of intermolecular polar bond on electronic state at organic donor/accepter heterojunction, (2013)
  • Author(s): K. Yonezawa, J.-L. Zhang, S. L. Wong, T Niu, A. Hinderhofer, W. Chen, N. Ueno, and S. Kera
  • Organizer: The 7th Int. Conf. on Molecular Electronics and Bioelectronics (M&BE7)
  • Place of Presentation: Fukuoka, Japan
• [Presentation] Temperature dependent growth and dewetting behavior of tetraseleno-tetracene on Au(111) and Ag(111) studied by photoelectron spectroscopy (2013)
  • Author(s): J. Niederhausen, S. Duhm, C. Bürker, Q. Xin, A. Wilke, A. Vollmer, F. Schreiber, S. Kera, N. Ueno, and N. Koch
  • Organizer: DPG Spring Meeting
  • Place of Presentation: Regensburg, Germany
• [Presentation] The effects of oxygen exposure on copper phthalocyanine thin films (2013)
  • Author(s): T. Sueyoshi, M. Ono, H. Tomii, M. Nakamura, and N. Ueno
  • Organizer: DPG Spring Meeting
  • Place of Presentation: Regensburg, Germany
• [Presentation] π共役系有機分子の吸着によって形成される電荷移動準位の発現条件 (2013)
  • Author(s): 細貝拓也, 米澤恵一朗, 加藤賢悟, 上野信雄, 解良聡
  • Organizer: 第60回応用物理学関係連合講演会
  • Place of Presentation: 神奈川工科大学
• [Presentation] 気相高分解能光電子分光装置の開発と有機半導体材料の電子状態評価 (2013)
  • Author(s): H.Wulijitaogetao，上野信雄, 解良聡
  • Organizer: 第60回応用物理学関係連合講演会
  • Place of Presentation: 神奈川工科大学
• [Presentation] 光電子分光法による配向制御Picene膜の電子構造の観察 (2013)
  • Author(s): 牧野凜太朗，米澤恵一朗，加藤賢悟，アレクサンダーヒンダホファー，細貝拓也, 解良聡, 上野信雄
  • Organizer: 第60回応用物理学関係連合講演会
  • Place of Presentation: 神奈川工科大学
• [Presentation] 有機分子薄膜の電子状態への分子間分極効果の影響 (2013)
  • Author(s): 米澤 恵一朗，Jia-Lin Zhang , Swee Liang Wong, Tianchao Niu, Alexander Hinderhofer, Wei Chen, 上野 信雄, 解良 聡
  • Organizer: 第60回応用物理学関係連合講演会
  • Place of Presentation: 神奈川工科大学
• [Presentation] Unraveling mysteries in organic semiconductors: Charge mobility and energy level alignment (2012)
  • Author(s): N.Ueno
  • Organizer: Organic Semiconductor Workshop 2012(OSC-2012)
  • Place of Presentation: Changsha, China
  • Invited
• [Presentation] UPS on electrical conductivity of organic solids :Correlating electronic states and electrical property (2012)
  • Author(s): N.Ueno
  • Organizer: Int. Conf. on Science and Technology of Synthetic Metals 2012 (ICSM-2012)
  • Place of Presentation: Atlanta, USA
  • Invited
• [Presentation] Nature of Organic Semiconductor: Origin of Gap States in Pentacene (2012)
  • Author(s): N. Ueno
  • Organizer: Int. Symposium on Organic Electronics 2012 (1SOE2012)
  • Place of Presentation: Okinawa, Japan
  • Invited
• [Presentation] Angle-resolved UPS intvestigation of transition-metal phthalocyanine thin films on graphite (2012)
  • Author(s): Y. Liu, M.Yamamoto, K. Yonezawa, N. Tran, N. Ueno, and S. Kera,
  • Organizer: UVSORシンポジウム
  • Place of Presentation: Okazaki
• [Presentation] Geometric and Electronic Structure of Templated C60 on Diindenoperylene Thin Films (2012)
  • Author(s): A. Hinderhofer, K. Yonezawa, K. Kato, S. Kera, N. Ueno, T. Hosokai, A. Gerlach, K. Broch, F. Schreiber
  • Organizer: 10th International Conference on Nano-Molecular Electronics (ICNME2012)
  • Place of Presentation: Awaji, Hyogo, Japan
• [Presentation] Quantitative Study for Photoelectron Angular Distribution of Transition-metal Phthalocyanine Thin Films on Graphite (2012)
  • Author(s): Y. Liu, M. Nagaosa, S. Kera, N. Ueno, S. Nagamatsu
  • Organizer: 10th International Conference on Nano-Molecular Electronics (ICNME2012)
  • Place of Presentation: Awaji, Hyogo, Japan
• [Presentation] Gap states in Pentacene thin film induced by gas exposure (2012)
  • Author(s): F.Bussolotti, S.Kera and N.Ueno
  • Organizer: 10th International Conference on Nano-Molecular Electronics (ICNME2012),
  • Place of Presentation: Awaji, Hyogo, Japan
• [Presentation] MoO3 based intermediate connector in tandem OLED: electric field assist charge generation and separation process (2012)
  • Author(s): J. Yang, Y. Xiao, S. Duhm, Y. Li, J. Tang, S. Kera, and N. Ueno
  • Organizer: 10th International Conference on Nano-Molecular Electronics (ICNME2012),
  • Place of Presentation: Awaji, Hyogo, Japan
• [Presentation] Surface Science on Insulators: Electronic Band Structure and Surface Brillouin Zone of Organic Single Crystals (2012)
  • Author(s): S. Duhm, Q. Xin, S. Kera and N. Ueno
  • Organizer: 2012 MRS Fall Meeting
  • Place of Presentation: Boston, USA
• [Presentation] Impacts of Molecular Orientations on Interface Electronic Structures (2012)
  • Author(s): Y.L. Huang, W. Chen, T. C. Niu, F. Bussolotti, H. Huang, A. S. T. Wee, N. Ueno, S. Kera,
  • Organizer: The 12th International Conference on Electron Spectroscopy and Structure (ICESS12)
  • Place of Presentation: Saint-Malo, France
• [Presentation] Accessing Surface Brillouin Zone and Band Structure of Insulating Picene Single Crystals (2012)
  • Author(s): S. Kera, Q. Xin, S. Duhm, F. Bussolotti, Y. Liu, K. Akaike, Y. Kubozono, H.Aoki, T. Kosugi, N. Ueno
  • Organizer: The 12th International Conference on Electron Spectroscopy and Structure (ICESS12)
  • Place of Presentation: Saint-Malo, France
• [Presentation] Impact of Structural Disorder on The Electronic Properties of Oraganic Thin Films (2012)
  • Author(s): F. Bussolotti, S. Kera, and N. Ueno
  • Organizer: Int. Conf. on Science and Technology of Synthetic Metals 2012 (ICSM-2012)
  • Place of Presentation: Atlanta, USA
• [Presentation] Electronic structure and molecular orbital symmetry of picene film (2012)
  • Author(s): S. Kera, Y. Liu, S. Nagamatsu, S. Hosoumi and N. Ueno,
  • Organizer: 14th International Conference on Organized Molecular Films (ICOMF14) - LB14
  • Place of Presentation: Paris, France
• [Presentation] Effects of interface crystallinity on the energy‐level alignment at organic/organic heterojunctions (2012)
  • Author(s): K. Yonezawa, A. Hinderhofer, T. Hosokai, K. Kato, F. Schreiber, N. Ueno, S. Kera
  • Organizer: 14th International Conference on Organized Molecular Films (ICOMF14) - LB14
  • Place of Presentation: Paris, France
• [Presentation] A Quantitative Study for Photoelectron Angular Distribution of Nickel-phthalocyanine Thin Film by Multiple-Scattering Theory combined with Molecular Orbital Calculation (2012)
  • Author(s): Yuan LIU, Satoshi KERA, Shinichi NAGAMATSU, Nobuo UENO
  • Organizer: 日本コンピュータ化学会2012秋季年会
  • Place of Presentation: 山形大学
• [Presentation] 振動分光によるルブレン分子の吸着骨格構造と分子配向 (2012)
  • Author(s): 西村孝宏，佐藤一至，岩澤和明，解良聡，上野信雄
  • Organizer: 2012年秋季第73回応用物理学会学術講演会
  • Place of Presentation: 愛媛大学
• [Presentation] Post-growth surface smoothing of thin films of diindenoperylene (2012)
  • Author(s): A. Hinderhofer, T. Hosokai, K. Yonezawa, A. Gerlach, K. Kato, K. Broch, C. Frank, J. Novák, S. Kera, N. Ueno, F. Schreiber
  • Organizer: 2012年秋季第73回応用物理学会学術講演会
  • Place of Presentation: 愛媛大学
• [Presentation] Quantitative analysis for Photoelectron Angular Distribution of Picene Thin Film (2012)
  • Author(s): Y. Liu, M. Nagaosa, S. Kera, N. Ueno
  • Organizer: 第7回有機デバイス院生研究会
  • Place of Presentation: 京都大学
• [Presentation] 有機半導体の本性と電子状態
  • Author(s): 上野信雄
  • Organizer: 第26回日本放射光学会・放射光科学合同シンポジューム
  • Place of Presentation: 名古屋大学
  • Invited
• [Book] Electronic Processes in Organic Electronics (Springer Series in Materials Science Vol. 209) (2015)
  • Author(s): Book edit: H. Ishii, K. Kudo, T. Nakayama, and N. Ueno
  • Total Pages: 432
  • Publisher: Springer
• [Book] "Fundamental Aspects and the Nature of Organic Semiconductor” in “Electronic Processes in Organic Electronics” (Springer Series in Materials Science Vol. 209), Chap.1. (2015)
  • Author(s): Nobuo Ueno
  • Publisher: Springer
• [Book] “Ultraviolet Photoelectron Spectroscopy (UPS) I: Band Dispersion Measurements of “Insulating” Organic Single Crystals” in “Electronic Processes in Organic Electronics"(Springer Series in Materials Science Vol. 209), Chap. 2 (2015)
  • Author(s): Yasuo Nakayama, Steffen Duhm, Qian Xin, Satoshi Kera, Hisao Ishii, and Nobuo Ueno
  • Publisher: Springer
• [Book] “Ultraviolet Photoelectron Spectroscopy (UPS) II: Electron–Phonon Coupling and Hopping Mobility” in “Electronic Processes in Organic Electronics” (Springer Series in Materials Science Vol. 209), Chap. 3 (2015)
  • Author(s): Satoshi Kera, Hiroyuki Yamane, and Nobuo Ueno
  • Publisher: Springer
• [Book] “Ultraviolet Photoelectron Spectroscopy (UPS) III: Direct Study of “Invisible” Band Gap States by Ultrahigh-Sensitivity UPS” in “Electronic Processes in Organic Electronics" (Springer Series in Materials Science Vol. 209), CHap. 4 (2015)
  • Author(s): Nobuo Ueno, Tomoki Sueyoshi, Fabio Bussolotti, and Satoshi Kera
  • Publisher: Springer
• [Book] "Pentacene Becomes Mott-Hubbard Insulator by Potassium Doping” in “Electronic Processes in Organic Electronics (Springer Series in Materials Science Vol. 209), Chap.5 (2015)
  • Author(s): Fabio Bussolotti, Satoshi Kera, and Nobuo Ueno
  • Publisher: Springer
• [Book] 現代表面科学シリーズ 第1巻，「表面科学こと始め」，第8章「熱電子の研究とリチャードソン効果の発見」 (2012)
  • Author(s): 上野信雄
  • Total Pages: 15
  • Publisher: 共立出版株式会社
• [Book] Energy Level Alignment at Semiconductive Polymer Interfaces: Correlating Electronic Energy Levels and Electrical Conductivity in "Semiconducting Polymer Composites", Chap. 3 (2012)
  • Author(s): Nobuo Ueno
  • Total Pages: 42
  • Publisher: Wiley
• [Book] Electronic Structure of Molecular Solids: Bridge to the Electrical Conduction in “Physics of Organic Semiconductors”, Chap. 3 (2012)
  • Author(s): Nobuo Ueno
  • Total Pages: 25
  • Publisher: Wiley
• [Remarks] 上野信雄研究室ホームページ
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• [Remarks] グローバルCOEホームページ
  • URL: http://www.gcoe.tf.chiba-u.jp
• [Remarks] 千葉大学 Ueno Lab.
  • URL: http://ulab-www.tf.chiba-u.jp
• [Remarks] 文部科学省グローバルCOEプログラム 有機エレクトロニクス高度化スクール
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