高配向ジナフトチエノチオフェン(DNTT)およびピセン(picene)分子膜の電子状態  [in Japanese] Electronic States of Highly Ordered DNTT and Picene Molecular Layer  [in Japanese]

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Author(s)

    • 佐々木 正洋 SASAKI Masahiro
    • 筑波大学数理物質科学研究科|筑波大学エネルギー物質科学研究センター(TREMS) Graduate School of Pure and Applied Sciences, University of Tsukuba|Tsukuba Research Center for Energy Materials Science (TREMS), University of Tsukuba

Abstract

<p>Molecular arrangements and electronic states of well-ordered Dinaphtho[2,3-b:2′3′-f]Thieno[3,2-b]-Thiophene (DNTT) and picene thin film on single crystal were measured by means of scanning tunneling microscope (STM) and angle-resolved photoemission spectroscopy, respectively. DNTT and picene form single crystalline-like molecular arrangement on inert Au(111) substrate. Splitting of HOMO energy due to overlapping with adjacent molecules was suggested by ultraviolet photoemission spectroscopy (UPS) and density functional theory (DFT) calculation. On the other hand, one-dimensional ordering of those molecule was observed on anisotropic Ag(110) substrate. However, the HOMO band dispersion was found to be 200 meV at maximum, showing that the overlapping of HOMO was smaller in such arrangement comparing with that in their single crystal.</p>

Journal

  • Vacuum and Surface Science

    Vacuum and Surface Science 61(6), 366-371, 2018

    The Japan Society of Vacuum and Surface Science

Keywords

Codes

  • NII Article ID (NAID)
    130007395735
  • NII NACSIS-CAT ID (NCID)
    AA12808657
  • Text Lang
    JPN
  • ISSN
    2433-5835
  • NDL Article ID
    029110475
  • NDL Call No.
    Z16-474
  • Data Source
    NDL  J-STAGE 
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