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2014 Fiscal Year Annual Research Report

AFM/STMによる単分子接合の電気伝導度と結合様式の関係の解明

Publicly Offered Research

Project AreaMolecular Architectonics: Orchestration of Single Molecules for Novel Function
Project/Area Number 26110516
Research InstitutionOsaka University

Principal Investigator

杉本 宜昭  大阪大学, 工学(系)研究科(研究院), 准教授 (00432518)

Project Period (FY) 2014-04-01 – 2016-03-31
Keywords走査型プローブ顕微鏡
Outline of Annual Research Achievements

近年、原子間力顕微鏡(AFM)を用いた有機分子の研究が、目覚しく発展している。AFMは、鋭い探針を試料表面でスキャンさせ、探針にかかる微弱な力を測定することによって、表面の原子を観察する顕微鏡である。2009年IBMのグループによって、単分子内の原子間の結合手(ボンド)が、AFMによって、直接可視化できることが示された。その後、未知の有機分子の構造決定、単一分子内の電荷の分布の可視化、分子内の結合次数の識別、化学反応前後の分子構造の同定などが立て続けに発表された。しかし、それらの研究は極低温環境下でのみ行われていた。そして、カンチレバーの変位をピエゾ電流によって自己検出する手法が用いられてきた。そこで本研究では、光干渉計を用いた高感度なAFMによって、有機分子の観察を室温で行った。その結果、極低温の研究と同様に分子内の結合手を解像する画像が室温でも得られた。これにより室温環境下においても、高分解能観察が可能であることが初めて示された。さらに、探針を有機分子に近づける際の相互作用力の測定を行った。表面原子との相互作用力の測定によって、探針を活性と不活性の二種類に分類することができたが、どちらの探針においても、分子を高分解能観察できることがわかった。つまり、探針先端の活性度とは無関係に不活性な分子を斥力イメージングできることが示された。さらに、AFMの画像と相互作用力のカーブを理論計算と比較したところ、よい一致を得ることができた。

Current Status of Research Progress
Current Status of Research Progress

2: Research has progressed on the whole more than it was originally planned.

Reason

本研究では、単分子接合の電気伝導度と結合様式との関係を明らかにすることを目的としている。今回、AFMを使って、探針ー分子ー基板の分子接合における相互作用力を精密に測定することによって、探針ー分子間が物理力で弱くつながっていることを実験と理論によって示すことができた。

Strategy for Future Research Activity

これまで用いた有機分子は基板と化学結合しているものの、探針とは化学結合していないことが明確になった。そこで、有機分子を探針とも化学結合させて、研究を行う。そのために、有機分子の酸素原子と結合している1つのシリコン原子を移動させて、有機分子との結合を切り、結合手を露出させて実験を行う。

  • Research Products

    (51 results)

All 2015 2014 Other

All Journal Article (10 results) (of which Peer Reviewed: 10 results,  Acknowledgement Compliant: 9 results) Presentation (40 results) (of which Invited: 2 results) Remarks (1 results)

  • [Journal Article] Pt atoms adsorbed on TiO2(110)-(1x1) studied with noncontact atomic force microscopy and first-principles simulations2015

    • Author(s)
      D. Fernandez-Torre, A. Yurtsever, J. Onoda, M. Abe, S. Morita, Y. Sugimoto, and R. Perez
    • Journal Title

      Physical Review B

      Volume: 91 Pages: 075401 1-8

    • DOI

      http://dx.doi.org/10.1103/PhysRevB.91.075401

    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] Room-temperature-concerted switch made of a binary atom cluster2015

    • Author(s)
      E. Inami, I. Hamada, K. Ueda, M. Abe, S. Morita, and Y. Sugimoto
    • Journal Title

      Nature Communications

      Volume: 6 Pages: 6231 1-7

    • DOI

      10.1038/ncomms7231

    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] Identifying the absolute orientation of a low-symmetry surface in real space2014

    • Author(s)
      S. Kuhn, M. Kittelmann, Y. Sugimoto, M. Abe, A. Kuhnle, and P. Rahe
    • Journal Title

      Physical Review B

      Volume: 90 Pages: 195405 1-12

    • DOI

      http://dx.doi.org/10.1103/PhysRevB.90.195405

    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] Direct observation and mechanism for enhanced field emission sites in platinum ion implanted/post-annealed ultrananocrystalline diamond films2014

    • Author(s)
      K. Panda, K.J. Sankaran, E. Inami, Y. Sugimoto, N.H. Tai, and I.-N. Lin
    • Journal Title

      Applied Physics Letters

      Volume: 105 Pages: 163109 1-5

    • DOI

      http://dx.doi.org/10.1063/1.4898571

    • Peer Reviewed
  • [Journal Article] Atomic-dipole-moment induced local surface potential on Si(111)-(7x7) surface studied by non-contact scanning nonlinear dielectric microscopy2014

    • Author(s)
      K. Yamasue, M. Abe, Y. Sugimoto, and Y. Cho
    • Journal Title

      Applied Physics Letters

      Volume: 105 Pages: 121601 1-5

    • DOI

      http://dx.doi.org/10.1063/1.4896323

    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] (2nx1) Reconstructions of TiO2(011) Revealed by Noncontact Atomic Force Microscopy and Scanning Tunneling Microscopy2014

    • Author(s)
      C.L. Pang, A. Yurtsever, J. Onoda, Y. Sugimoto, and G. Thornton
    • Journal Title

      The Journal of Physical Chemistry C

      Volume: 118 Pages: 23168-23174

    • DOI

      10.1021/jp507422s

    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] Improved study of electric dipoles on the Si(100)-2x1 surface by non-contact scanning nonlinear dielectric microscopy2014

    • Author(s)
      M. Suzuki, K. Yamasue, M. Abe, Y. Sugimoto, and Y. Cho
    • Journal Title

      Applied Physics Letters

      Volume: 105 Pages: 101603 1-3

    • DOI

      http://dx.doi.org/10.1063/1.4895031

    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] Mechanical gate control for atom-by-atom cluster assembly with scanning probe microscopy2014

    • Author(s)
      Y. Sugimoto, A. Yurtsever, N. Hirayama, M. Abe, and S. Morita
    • Journal Title

      Nature Communications

      Volume: 5 Pages: 4360 1-7

    • DOI

      10.1038/ncomms5360

    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] Subsurface charge repulsion of adsorbed H-adatoms on TiO2(110)2014

    • Author(s)
      J. Onoda, C.L. Pang, A. Yurtsever, and Y. Sugimoto
    • Journal Title

      The Journal of Physical Chemistry C

      Volume: 118 Pages: 13674-13679

    • DOI

      10.1021/jp503402w

    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] Initial and secondary oxidation products on the Si(111)-(7x7) surface identified by atomic force microscopy and first principles calculations2014

    • Author(s)
      J. Onoda, M. Ondracek, A. Yurtsever, P. Jelinek, and Y. Sugimoto
    • Journal Title

      Applied Physics Letters

      Volume: 104 Pages: 133107 1-4

    • DOI

      http://dx.doi.org/10.1063/1.4870629

    • Peer Reviewed / Acknowledgement Compliant
  • [Presentation] 双子Si原子スイッチ間の相互作用と環境効果2015

    • Author(s)
      山崎詩郎、前田圭亮、高谷玲平、澤田大輔、杉本宜昭、阿部真之、P. Pou、L. Rodrigo、P. Motobbo、R. Perez、P. Jelinek、森田清三
    • Organizer
      日本物理学会 第70回年次大会
    • Place of Presentation
      早稲田大学
    • Year and Date
      2015-03-21 – 2015-03-24
  • [Presentation] 原子間力顕微鏡を用いたナノスペース間の原子操作2015

    • Author(s)
      杉本宜昭、Ayhan Yurtsever、平山直樹、阿部真之、森田清三
    • Organizer
      第62回応用物理学会春季学術講演会
    • Place of Presentation
      東海大学
    • Year and Date
      2015-03-11 – 2015-03-14
  • [Presentation] 室温で動作する鉛クラスタースイッチの組立2015

    • Author(s)
      稲見栄一、濱田幾太郎、上田啓市、阿部真之、森田清三、杉本宜昭
    • Organizer
      第62回応用物理学会春季学術講演会
    • Place of Presentation
      東海大学
    • Year and Date
      2015-03-11 – 2015-03-14
  • [Presentation] Direct Observation and mechanism for Enhanced Electron Emission Sites in Pt Ion Implanted/Post-annealed Ultra nanocrystalline Diamond Films2015

    • Author(s)
      K. Panda, E. Inami, K. J Sankaran, Y. Sugimoto, N-H Tai, I-N Lin
    • Organizer
      第62回応用物理学会春季学術講演会
    • Place of Presentation
      東海大学
    • Year and Date
      2015-03-11 – 2015-03-14
  • [Presentation] Switching Behaviors of Atom Clusters created by Inter-NanoSpace Atom Manipulation2015

    • Author(s)
      Y. Sugimoto, S. Yamazaki, E. Inami, A. Yurtsever, M. Abe, and S. Morita
    • Organizer
      Symposium on Surface and Nano Science 2015 (SSNS'15)
    • Place of Presentation
      Furano
    • Year and Date
      2015-01-14 – 2015-01-18
  • [Presentation] Atomic Force Microscopy Study of Initial and Secondary Oxidation Stages of the Si(111)-(7x7) surface2014

    • Author(s)
      J. Onoda, M. Ondracek, A. Yurtsever, P. Jelinek, and Y. Sugimoto
    • Organizer
      22th International Colloquium on Scanning Probe Microscopy (ICSPM22)
    • Place of Presentation
      Atagawa
    • Year and Date
      2014-12-11 – 2014-12-13
  • [Presentation] Inter-nanospace atom manipulation for cluster assembly2014

    • Author(s)
      Y. Sugimoto, A. Yurtsever, N. Hirayama, M. Abe, and S. Morita, “Inter-nanospace atom manipulation for cluster assembly
    • Organizer
      22th International Colloquium on Scanning Probe Microscopy (ICSPM22)
    • Place of Presentation
      Atagawa
    • Year and Date
      2014-12-11 – 2014-12-13
  • [Presentation] (2n×1) Reconstructions of TiO2(011) Revealed by Atomic Force Microscopy and Scanning Tunneling Microscopy2014

    • Author(s)
      J. Onoda, C.L. Pang, A. Yurtsever, Y. Sugimoto, and G. Thornton
    • Organizer
      22th International Colloquium on Scanning Probe Microscopy (ICSPM22)
    • Place of Presentation
      Atagawa
    • Year and Date
      2014-12-11 – 2014-12-13
  • [Presentation] Interplay between Current and Force on Si4 Atom Switch2014

    • Author(s)
      S. Yamazaki, K. Maeda, Y. Sugimoto, M. Abe, P. Pou, L. Rodrigo, R. Perez, P. Mutombo, P. Jelinek, and S. Morita
    • Organizer
      22th International Colloquium on Scanning Probe Microscopy (ICSPM22)
    • Place of Presentation
      Atagawa
    • Year and Date
      2014-12-11 – 2014-12-13
  • [Presentation] 電流と力で駆動する分子的Siスイッチ2014

    • Author(s)
      山崎詩郎,前田圭亮,高谷玲平,澤田大輔,杉本宜昭,阿部真之,Pablo Pou,Lucia Rodrigo,Pingo Mutobbo,Ruben Perez,Pavel Jelinek,森田 清三
    • Organizer
      第5回分子アーキテクトニクス研究会
    • Place of Presentation
      大阪大学
    • Year and Date
      2014-11-25 – 2014-11-26
  • [Presentation] TiO2(011)-(2x1)表面の原子間力顕微鏡測定2014

    • Author(s)
      杉本宜昭、C.L. Pang、A. Yurtsever、小野田穣、G. Thornton
    • Organizer
      第5回分子アーキテクトニクス研究会
    • Place of Presentation
      大阪大学
    • Year and Date
      2014-11-25 – 2014-11-26
  • [Presentation] 原子間力顕微鏡による酸素吸着Si(111)-(7x7)表面の研究2014

    • Author(s)
      小野田穣、Ondracek Martin、Yurtsever Ayhan、Jelinek Pavel、杉本宜昭
    • Organizer
      第5回分子アーキテクトニクス研究会
    • Place of Presentation
      大阪大学
    • Year and Date
      2014-11-25 – 2014-11-26
  • [Presentation] 原子操作による室温動作が可能な鉛クラスタースイッチの組立2014

    • Author(s)
      稲見栄一、濱田幾太郎、上田啓市、阿部真之、森田清三、杉本 宜昭
    • Organizer
      第5回分子アーキテクトニクス研究会
    • Place of Presentation
      大阪大学
    • Year and Date
      2014-11-25 – 2014-11-26
  • [Presentation] 原子間力顕微鏡による分子薄膜の室温高分解能観察2014

    • Author(s)
      岩田孝太、山崎詩郎、杉本宜昭
    • Organizer
      第5回分子アーキテクトニクス研究会
    • Place of Presentation
      大阪大学
    • Year and Date
      2014-11-25 – 2014-11-26
  • [Presentation] 原子間力顕微鏡を用いた原子操作とエネルギー散逸2014

    • Author(s)
      杉本宜昭
    • Organizer
      第34回表面科学学術講演会
    • Place of Presentation
      松江
    • Year and Date
      2014-11-06 – 2014-11-08
    • Invited
  • [Presentation] トンネル電流と原子間力で競合的に駆動するSi原子スイッチ2014

    • Author(s)
      山崎詩郎、前田圭亮、高谷玲平、澤田大輔、杉本宜昭、阿部真之、P. Pou、R. Lucia、M. Pingo、R. Perez、P. Jelinek、森田清三
    • Organizer
      第34回表面科学学術講演会
    • Place of Presentation
      松江
    • Year and Date
      2014-11-06 – 2014-11-08
  • [Presentation] 原子間力顕微鏡を用いた単一有機分子の室温測定2014

    • Author(s)
      岩田孝太、山崎詩郎、杉本宜昭
    • Organizer
      第34回表面科学学術講演会
    • Place of Presentation
      松江
    • Year and Date
      2014-11-06 – 2014-11-08
  • [Presentation] Atomic force microscopy for imaging, identification and manipulation of single atoms2014

    • Author(s)
      Y. Sugimoto
    • Organizer
      The 7th International Symposium on Surface Science and Nanotechnology (ISSS7)
    • Place of Presentation
      Matsue
    • Year and Date
      2014-11-03 – 2014-11-06
    • Invited
  • [Presentation] Room Temperature Chiral Switch of Nanocluster Created by Atom Manipulation2014

    • Author(s)
      E. Inami, I. Hamada, K. Ueda, M. Abe, S. Morita, and Y. Sugimoto
    • Organizer
      The 7th International Symposium on Surface Science and Nanotechnology (ISSS7)
    • Place of Presentation
      Matsue
    • Year and Date
      2014-11-03 – 2014-11-06
  • [Presentation] Single Organic Molecule Measured by Atomic Force Microscopy at Room Temperature2014

    • Author(s)
      K. Iwata, S. Yamazaki, and Y. Sugimoto
    • Organizer
      The 7th International Symposium on Surface Science and Nanotechnology (ISSS7)
    • Place of Presentation
      Matsue
    • Year and Date
      2014-11-03 – 2014-11-06
  • [Presentation] Non-contact atomic force microscopy study of initial and secondary oxidation products on the Si(111)-(7x7) surface2014

    • Author(s)
      J. Onoda, M. Ondracek, A. Yurtsever, P. Jelinek, and Y. Sugimoto
    • Organizer
      The 7th International Symposium on Surface Science and Nanotechnology (ISSS7)
    • Place of Presentation
      Matsue
    • Year and Date
      2014-11-03 – 2014-11-06
  • [Presentation] Competing Force- and Current-Induced Atom Switching at Bi-stable All-Si Tetramer2014

    • Author(s)
      S. Yamazaki, K. Maeda, Y. Sugimoto, M. Abe, P. Pou, L. Rodrigo, R. Perez, P. Mutombo, P. Jelinek, and S. Morita
    • Organizer
      The 7th International Symposium on Surface Science and Nanotechnology (ISSS7)
    • Place of Presentation
      Matsue
    • Year and Date
      2014-11-03 – 2014-11-06
  • [Presentation] Investigation of TiO2(011) Surface by Noncontact Atomic Force Microscopy and Scanning Tunneling Microscopy2014

    • Author(s)
      A. Yurtsever, C.L. Pang, J. Onoda, Y. Sugimoto, and G. Thornton
    • Organizer
      The 7th International Symposium on Surface Science and Nanotechnology (ISSS7)
    • Place of Presentation
      Matsue
    • Year and Date
      2014-11-03 – 2014-11-06
  • [Presentation] Quantitative Kelvin probe force spectroscopy using voltage-pulse technique2014

    • Author(s)
      E. Inami, and Y. Sugimoto
    • Organizer
      The 7th International Symposium on Surface Science and Nanotechnology (ISSS7)
    • Place of Presentation
      Matsue
    • Year and Date
      2014-11-03 – 2014-11-06
  • [Presentation] Direct Observation of Enhanced Electron Emission Sites in Pt Ion Implanted/Post-annealed Ultra nanocrystalline Diamond Films2014

    • Author(s)
      K. Panda, E. Inami, K.J. Sankaran, Y. Sugimoto, N.-H. Tai, I.-N. Lin
    • Organizer
      The 7th International Symposium on Surface Science and Nanotechnology (ISSS7)
    • Place of Presentation
      Matsue
    • Year and Date
      2014-11-03 – 2014-11-06
  • [Presentation] Atom-by-atom clustering by scanning probe microscopy2014

    • Author(s)
      Y. Sugimoto, A. Yurtsever, N. Hirayama, M. Abe, and S. Morita
    • Organizer
      The 7th International Symposium on Surface Science and Nanotechnology (ISSS7)
    • Place of Presentation
      Matsue
    • Year and Date
      2014-11-03 – 2014-11-06
  • [Presentation] 原子操作によるナノクラスターの組立2014

    • Author(s)
      杉本 宜昭、Ayhan Yurtsever、平山直樹、阿部真之、森田清三
    • 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
    • Year and Date
      2014-09-17 – 2014-09-20
  • [Presentation] パルス法を用いたケルビンプローブフォーススペクトロスコピー2014

    • Author(s)
      稲見栄一、杉本 宜昭
    • 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
    • Year and Date
      2014-09-17 – 2014-09-20
  • [Presentation] 単一PTCDA分子の高分解能室温AFM測定2014

    • Author(s)
      岩田 孝太、山崎 詩郎、杉本 宜昭
    • 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
    • Year and Date
      2014-09-17 – 2014-09-20
  • [Presentation] Si 原子スイッチにおける電流と力の競合2014

    • Author(s)
      山崎詩郎、前田圭亮、高谷玲平、澤田大輔、杉本宜昭、阿部真之、P. Pou、L. Rodrigo、P.Mutombo、R. Perez、P. Jelinek、森田清三
    • Organizer
      日本物理学会 2014年秋季大会
    • Place of Presentation
      中部大学
    • Year and Date
      2014-09-07 – 2014-09-10
  • [Presentation] Mechanical Atom Switching of Bistable Si4 Cluster2014

    • Author(s)
      S. Yamazaki, K. Maeda, Y. Sugimoto, M. Abe, P. Pou, L. Rodrigo, R. Perez, P. Mutombo, P. Jelinek, and S. Morita, “Mechanical Atom Switching of Bistable Si4 Cluster
    • Organizer
      17th International Conference on Non-Contact Atomic Force Microscopy (nc-AFM 2014)
    • Place of Presentation
      Tsukuba
    • Year and Date
      2014-08-04 – 2014-08-08
  • [Presentation] NC-AFM study of a SrTiO3(100)-(R13xR13)-R33.7 reconstructed surface2014

    • Author(s)
      R. Shimizu, Y. Sugimoto, K. Akagi, M. Abe, S. Morita, and T. Hitosugi
    • Organizer
      17th International Conference on Non-Contact Atomic Force Microscopy (nc-AFM 2014)
    • Place of Presentation
      Tsukuba
    • Year and Date
      2014-08-04 – 2014-08-08
  • [Presentation] Mechanical gate control for atom-by-atom cluster assembly with scanning probe microscopy2014

    • Author(s)
      Y. Sugimoto, A. Yurtsever, N. Hirayama, M. Abe, and S. Morita
    • Organizer
      17th International Conference on Non-Contact Atomic Force Microscopy (nc-AFM 2014)
    • Place of Presentation
      Tsukuba
    • Year and Date
      2014-08-04 – 2014-08-08
  • [Presentation] Selectable force and current-induced atom switching of Si tetramer2014

    • Author(s)
      K. Maeda, S. Yamazaki, Y. Sugimoto, M. Abe, P. Pou, L. Rodrigo, R. Perez, P. Motombo, P. Jelinek, and S. Morita
    • Organizer
      17th International Conference on Non-Contact Atomic Force Microscopy (nc-AFM 2014)
    • Place of Presentation
      Tsukuba
    • Year and Date
      2014-08-04 – 2014-08-08
  • [Presentation] (nx1) Reconstructions of TiO2(011) Revealed by Noncontact Atomic Force Microscopy and Scanning Tunneling Microscopy2014

    • Author(s)
      A. Yurtsever, C.L. Pang, J. Onoda, Y. Sugimoto, and G. Thornton
    • Organizer
      17th International Conference on Non-Contact Atomic Force Microscopy (nc-AFM 2014)
    • Place of Presentation
      Tsukuba
    • Year and Date
      2014-08-04 – 2014-08-08
  • [Presentation] AFM Measurement of Single PTCDA Molecule at Room Temperature2014

    • Author(s)
      K. Iwata, S. Yamazaki, and Y. Sugimoto
    • Organizer
      17th International Conference on Non-Contact Atomic Force Microscopy (nc-AFM 2014)
    • Place of Presentation
      Tsukuba
    • Year and Date
      2014-08-04 – 2014-08-08
  • [Presentation] AFM study of initial and secondary oxidation products on the Si(111)-(7x7) surface2014

    • Author(s)
      J. Onoda, M. Ondracek, A. Yurtsever, P. Jelinek, and Y. Sugimoto
    • Organizer
      17th International Conference on Non-Contact Atomic Force Microscopy (nc-AFM 2014)
    • Place of Presentation
      Tsukuba
    • Year and Date
      2014-08-04 – 2014-08-08
  • [Presentation] Simultaneous noncontact AFM and STM of Ag:Si(111)-(R3×R3)R302014

    • Author(s)
      A. Stannard, A. Sweetman, Y. Sugimoto, M. Abe, S. Morita, and P. Moriarty
    • Organizer
      17th International Conference on Non-Contact Atomic Force Microscopy (nc-AFM 2014)
    • Place of Presentation
      Tsukuba
    • Year and Date
      2014-08-04 – 2014-08-08
  • [Presentation] Kelvin probe force spectroscopy by a voltage-pulse technique2014

    • Author(s)
      E. Inami, and Y. Sugimoto
    • Organizer
      17th International Conference on Non-Contact Atomic Force Microscopy (nc-AFM 2014)
    • Place of Presentation
      Tsukuba
    • Year and Date
      2014-08-04 – 2014-08-08
  • [Presentation] Combined STM and AFM study on the mechanism for enhanced electron emission in Pt ion implanted UNCD films2014

    • Author(s)
      K. Panda, E. Inami, K.J. Sankaran, Y. Sugimoto, N.-H. Tai, and I.-N. Lin
    • Organizer
      17th International Conference on Non-Contact Atomic Force Microscopy (nc-AFM 2014)
    • Place of Presentation
      Tsukuba
    • Year and Date
      2014-08-04 – 2014-08-08
  • [Remarks] 原子操作組立領域

    • URL

      http://www.afm.eei.eng.osaka-u.ac.jp/

URL: 

Published: 2016-06-01  

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