表面科学
Online ISSN : 1881-4743
Print ISSN : 0388-5321
ISSN-L : 0388-5321
36 巻 , 6 号
選択された号の論文の12件中1~12を表示しています
巻頭言
特集: 表面科学新世代を築く次世代放射光源
  • 尾嶋 正治
    原稿種別: 研究紹介
    2015 年 36 巻 6 号 p. 280-285
    発行日: 2015/06/10
    公開日: 2015/06/18
    ジャーナル フリー
    The use of medium-sized highly brilliant soft X-ray synchrotron radiation (SR) enables analyses with much better spatial, energy and time resolution, resulting in visualizing surface/interface electronic structure in nano regions. In order to improve performances of electronic, magnetic and energy devices, it is required to characterize and control electronic structures. In the world, several SR rings with the emittance of less than 1 nmrad are being constructed, aiming at revolutionary progress of surface/interface sciences using soft X-rays. Although we have constructed the University of Tokyo Outstation at SPring-8 for soft X-ray surface/interface sciences, medium-sized highly brilliant SR ring is strongly required for further development in this field. In this article, nano-region photoelectron spectroscopy for graphene FET and ReRAM, soft X-ray emission spectroscopy for fuel cells and Li ion batteries, and time-resolved photoelectron spectroscopy for photocatalysts are introduced, and future prospects of soft X-ray surface/interface sciences are discussed.
  • 村上 洋一
    原稿種別: 研究紹介
    2015 年 36 巻 6 号 p. 286-290
    発行日: 2015/06/10
    公開日: 2015/06/18
    ジャーナル フリー
    Future plans for synchrotron radiation research are described after a broad overview of progress in Japanese synchrotron radiation science. In particular a recent plan of high brilliance light source, which is proposed to Master Plan 2014 of Science Council of Japan by the Japanese Society for Synchrotron Radiation Research, is reported in detail. Lastly, the perspectives in materials and life sciences using synchrotron radiation will be mentioned.
  • 濱 広幸
    原稿種別: 研究紹介
    2015 年 36 巻 6 号 p. 291-296
    発行日: 2015/06/10
    公開日: 2015/06/18
    ジャーナル フリー
    Since there has been a strong requirement in Japan for a new medium size synchrotron radiation facility that provides high brilliant photons in the soft X-ray region, the SLiT-J project is proposed by 7 national universities in Tohoku area. In addition to the synchrotron radiation characteristics, the manuscript describes a basic concept of designing the storage ring, expected performance of the SLiT-J and future prospects of the project.
  • 木下 豊彦
    原稿種別: 研究紹介
    2015 年 36 巻 6 号 p. 297-302
    発行日: 2015/06/10
    公開日: 2015/06/18
    ジャーナル フリー
    Progress of spectroscopic studies in soft-X-ray regime is discussed. From the first utilization of ES (Electron Synchrotron) in University of Tokyo, synchrotron radiation spectroscopy, especially in vacuum ultraviolet and soft-X-ray region plays important rolls for the study of condensed matters. Not only the advanced synchrotron light source but also new detection methods have given us a lot of advantages in investigations especially in surface science. Recent trend in spectroscopy is combination with microscopy and time-resolved measurements. These show us the frontiers in intrinsic nature of matters.
  • 吹留 博一
    原稿種別: 研究紹介
    2015 年 36 巻 6 号 p. 303-308
    発行日: 2015/06/10
    公開日: 2015/06/18
    ジャーナル フリー
    Si-based electronics has reached an ultimate fabrication level (22 nm design rule), which makes further progress hardly achieved. Therefore, 2D atomic layers including graphene have been extensively studied as next-generation device materials to supplement device functions which Si-based electronics cannot serve. Unfortunately, however, there is a gap between material electronic properties and device performances in the researches on 2D atomic layers. We demonstrate soft x-ray operando spectromicroscopies, photoemission electron microscopy (PEEM) and 3D scanning photoelectron microscopy (3D nano-ESCA), in SPring-8 to bridge the gap in graphene research. The complementary use of these operando spectromicroscopies enables us to probe both valence band and conduction bands of graphene channels under operation, resulting in revealing the effects of the interfaces with contact metal and oxide. The significance of the operando spectromicroscopy is now recognized, resulting in the adoption as a major research target in NEDO academic-industrial alliance project.
  • 雨宮 健太
    原稿種別: 研究紹介
    2015 年 36 巻 6 号 p. 309-312
    発行日: 2015/06/10
    公開日: 2015/06/18
    ジャーナル フリー
    A novel experimental technique, time-resolved wavelength-dispersive soft X-ray imaging spectroscopy, is proposed in order to achieve real-time and real-space resolved spectroscopy for the observation of irreversible and inhomogeneous surface chemical reactions. By combining the wavelength-dispersed soft X rays, in which the X-ray wavelength (photon energy) changes as a function of position on the sample, with the photoelectron emission microscope, the soft X-ray absorption spectra are separately obtained at different positions on the sample without scanning the X-ray monochromator. Therefore, the real-time resolved measurement of site-selective soft X-ray absorption spectroscopy is realized in one event without repeating the chemical reaction. It is expected that the spatial distribution of different chemical species is traced during the surface chemical reaction, which is essential to understand the reaction mechanism.
研究紹介
連載企画
環境問題と表面科学
  • 横山 仁
    2015 年 36 巻 6 号 p. 319-321
    発行日: 2015/06/10
    公開日: 2015/06/18
    ジャーナル フリー
    東京をはじめとする大都市ではヒートアイランド現象が問題となっているが,都市内に存在する緑地は,自らがクールアイランドやクールスポットを形成し,都市の気候緩和に貢献していることが知られている。ここでは,関連する研究の一部を紹介したが,都市のヒートアイランド現象やその緩和対策の定量的な評価において,都市や緑地表面の熱や放射のやり取りに関する調査・解析が欠かせない。今後,こうした研究のさらなる深化が求められており,表面の科学を専門的に扱う日本表面科学会に期待するところは大きい。
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