Preparation of tetrapod-shaped ZnO nanomaterial field emission cathodes by deposition method | Zendy

Qin Hua-fang | Zendy; Guo Tai-liang | Zendy

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Preparation of tetrapod-shaped ZnO nanomaterial field emission cathodes by deposition method

Author(s) -

Qin Hua-fang,

Guo Tai-liang

Publication year - 2008

Publication title -

acta physica sinica

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.199

H-Index - 47

ISSN - 1000-3290

DOI - 10.7498/aps.57.1224

Subject(s) - cathode , brightness , phosphor , field emission display , field electron emission , materials science , tetrapod (structure) , deposition (geology) , nanomaterials , optoelectronics , flat panel , optics , nanotechnology , chemistry , physics , paleontology , sediment , biology , electron , quantum mechanics

Tetrapod-shaped ZnO nanomaterial field emission cathode was preparated by deposition method. To the high-vacuum flat capsulation with phosphor screen and cathode was applied a voltage to test the cathode emission current and the phosphor screen brightness. For the cathode with total area 13×15 cm2, the test results showed that when the volume percentage of K2SiO3 ranged from 50 × 10-3 to 83× 10-3, concentration of Ba(NO3)2 arranged from 50 × 10-4 to 77×10-4 M, and concentration of tetrapod-shaped ZnO arranged from 82×10-4 to 12×10-3M, the cathode emission current was the largest, and phosphor screen at peak brightness could reach 60 cd/cm2 The average brightness was 48 cd/cm2

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