【表面と真空 (Vacuum and Surface Science)】は，2018年4月の日本表面科学会と日本真空学会の合併により設立された公益社団法人 日本表面真空学会が出版する学術論文誌です。設立に先立つ2018年1月に創刊された新しいジャーナルになります。前身誌は日本真空学会の【Journal of the Vacuum Society of Japan】と日本表面科学会の【表面科学】になり，双方の記事種を踏襲し，その上で新たな分野への展開を目指しています。巻号は，歴史のより長い【Journal of the Vacuum Society of Japan】の巻数を引き継ぎ，第61巻からの創刊となります。
Further improvements and development of new polymer electrolyte materials are required to achieve the target values stated in NEDO (New Energy and Industrial Technology Development Organization) roadmap for the fuel cell and hydrogen technology developments. If the final goal is broken down into the performance of polymer electrolyte materials, minor changes to materials that have already been developed or are on the market will not be able to meet that demand. A major technical breakthrough will be required in the next 10 years, and a new concept will be required to achieve it. After showing the research background of polymer electrolyte membranes, this report overviews the current issues of polymer electrolyte membranes, especially the response to the NEDO roadmap for fuel cell and hydrogen technology developments.
Inelastic electron tunneling spectroscopy (IETS) combined with scanning tunneling microscopy (STM) allows us to acquire vibrational signals at surfaces. In STM-IETS, a tunneling electron from the STM tip excites vibrations whenever the energy of the tunneling electron exceeds the vibrational energies. This opens up an inelastic channel in parallel with the elastic one and gives rise to an increase/decrease of the conductivity. As a consequence, a pair of peak and dip shows up at the bias voltages with respect to the Fermi level corresponding to the energy of vibrational energy. Until recently, the application of STM-IETS was limited to the localized vibration of single atoms and molecules adsorbed on surfaces. In principle, STM-IETS should be capable of detecting collective lattice dynamics, i.e., phonons. In this paper, I will introduce the theory of STM-IETS measurement for a metal surface and the application of this theory for surface phonons on Cu(110).
The advancements of Si electronics from the past to the present are reviewed and the future technological trends are discussed based on the semiconductor roadmap. The development of the heterogeneous integration is also discussed.
As a post-OLED (organic light emitting diode) device, expectations are rising for an organic semiconductor laser diode (OSLD), which is the ultimate current injection device. In order to realize OSLD, the achievement of high current density of several kA cm－2 and the development of laser molecules exhibiting ultra-low threshold has been required. This paper introduces the recent progress in molecular design for laser molecules aimed for OSLDs.
Plasma catalysis is gathering attentions for its unique characters in chemical reactivity and product selectivity. Various applications have been suggested and demonstrated. When catalysts are located inside the plasma zone, bilateral interactions occur which are generally complicated to get full understanding of the detailed steps. Nevertheless, a lot of experimental results have been filed up for various chemical reactions (decomposition, synthesis, partial redox). Notwithstanding the progress during the last decades, however, the understanding of the working mechanism is still in early stage. As a representative model reaction, room temperature oxidation of CO was compared for the conventional thermal catalysis, plasma-driven catalysis, and ozone-assisted catalysis. The effect of different catalyst, reaction mechanism, and catalyst regeneration was discussed. In this review, the current progress to understand the bilateral interactions of plasma and catalyst, literature survey, and some of future perspective will be presented.