Electron emission suppression characteristics of molybdenum grids coated with Pt films by ion-beam-assisted deposition

Journal Article · Sun May 01 00:00:00 EDT 2005 · Journal of Applied Physics

DOI:https://doi.org/10.1063/1.1896096· OSTI ID:20713936

Jun, Jiang; Bingyao, Jiang; Congxin, Ren; Fumin, Zhang; Tao, Feng; Xi, Wang; Xianghuai, Liu; Shichang, Zou ^[1]

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1. The Research Center of Semiconductor Functional Film Engineering Technology, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai 200050 (China)

Pt was deposited onto molybdenum grids by the ion-beam-assisted deposition method. The electron emission characteristics of molybdenum grids, with and without Pt, contaminated by active electron emission substances (Ba, BaO) of the cathode were measured using analogous diode method. The x-ray diffraction, energy dispersive x-ray, and x-ray photoelectron spectroscopy analyses were preformed on the surface of the molybdenum grids coated with Pt. The electron emission current from the molybdenum grid coated with a Pt film is smaller than that without the Pt film, and the mechanism for electron emission suppression of the molybdenum grid coated with the Pt film was discussed.

• OSTI ID: 20713936
• Journal Information: Journal of Applied Physics, Vol. 97, Issue 9; Other Information: DOI: 10.1063/1.1896096; (c) 2005 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0021-8979
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
BARIUM OXIDES
CATHODES
CHEMICAL ANALYSIS
DEPOSITION
ELECTRON EMISSION
ION BEAMS
MOLYBDENUM
PLATINUM
THIN FILMS
TRAVELLING WAVE TUBES
X-RAY DIFFRACTION
X-RAY PHOTOELECTRON SPECTROSCOPY