Shinku
Online ISSN : 1880-9413
Print ISSN : 0559-8516
ISSN-L : 0559-8516
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Volume 16, Issue 5
Displaying 1-4 of 4 articles from this issue
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  • Formation of Metallic Blacks by Evaporation
    Kazuki ITO
    1973 Volume 16 Issue 5 Pages 163-167
    Published: May 20, 1973
    Released on J-STAGE: September 04, 2009
    DOIhttps://doi.org/10.3131/jvsj.16.163
    JOURNAL FREE ACCESS
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  • Infrared Spectral Studies of the Adsorption under High Vacuum
    Nobutsune TAKEZAWA, Isamu TOYOSHIMA
    1973 Volume 16 Issue 5 Pages 168-173
    Published: May 20, 1973
    Released on J-STAGE: September 04, 2009
    DOIhttps://doi.org/10.3131/jvsj.16.168
    JOURNAL FREE ACCESS
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  • Electron Emission from a Cesiated M-ZnS Schottky Diode into Vacuum
    Fusako KOSHIGA, Takuo SUGANO
    1973 Volume 16 Issue 5 Pages 174-179
    Published: May 20, 1973
    Released on J-STAGE: September 04, 2009
    DOIhttps://doi.org/10.3131/jvsj.16.174
    JOURNAL FREE ACCESS
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    We succeeded in getting low resistivity ZnS single crystal by Al diffusion in Zn melt at temperature of 1000°C, 950°C and 900°C. The diffusion coefficient of Al in ZnS was obtained by measuring the profile of Al using Schottky barrier capacitance method, and the activation energy of Al was determined as 3.4 eV.
    Using those ZnS crystals, electron emission experiment was carried out. 300 Å thick Au or Pd film was evaporated on ZnS surface in 10-8 Torr and Cs was deposited on it. The diode was forward biased. and a part of hot electrons injected into the metal through Schottky barrier was emitted from the metal surface into vacuum. The fraction of the emission current to the diode current was so low as 10-7. The decay of the emission current has been observed, and it seemed to be due to the reaction of Cs to metal evaporated on ZnS surface.
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  • Secondary Electron Emission from Insulators by Ion Bombardment
    Heiju UCHIIKE, Tsutae SHINODA, Yoshifumi FUKUSHIMA, Asuo AISHIMA
    1973 Volume 16 Issue 5 Pages 180-185
    Published: May 20, 1973
    Released on J-STAGE: September 04, 2009
    DOIhttps://doi.org/10.3131/jvsj.16.180
    JOURNAL FREE ACCESS
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    The characteristics of secondary electron emission from glass surface by Ar+ ions were investigated experimentally. The yields of glass and quartz microsheets were larger than that of stainless steel. It was first observed that Field Enhanced Emission and Self Sustained Emission were caused by the surface charge. Because increasing of the yield is technological demand, HF etching and sandblast were attempted as one of the means of increasing yield. Then the yields of etched and sandblasted samples were about two times larger than that of non-etched or non-sandblasted sample. Field Enhanced Emission and Self Sustained Emission can not be interpreted only with kinetic ejection or potential emission theory. We proposed a simple model that the work function decreases by the band bending with the accumulation of positive charge near the surface.
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