Bulb-Shaped Field Emission Lamps Using Carbon Nano-Coil Cathodes

被引：8

作者：

Chou, Yi-Ping ^{[1
]}

Pu, Nen-Wen ^{[2
]}

Ger, Ming-Der ^{[3
]}

Chung, Kun-Ju ^{[1
]}

Hou, Kung-Hsu ^{[4
]}

Liu, Yi-Ming ^{[3
]}

机构：

[1] Natl Def Univ, Chung Cheng Inst Technol, Sch Def Sci, Tao Yuan 335, Taiwan

[2] Yuan Ze Univ, Dept Photon Engn, Tao Yuan 320, Taiwan

[3] Natl Def Univ, Chung Cheng Inst Technol, Dept Appl Chem & Mat Engn, Tao Yuan 335, Taiwan

[4] Natl Def Univ, Chung Cheng Inst Technol, Dept Power Vehicle & Syst Engn, Tao Yuan 335, Taiwan

来源：

JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY | 2012年 / 12卷 / 11期

关键词：

Field Emission Lamp; Carbon Nanotube; Cathodoluminescence; Electric Field; CATALYTIC PYROLYSIS; GROWTH; NANOTUBES; MORPHOLOGIES; NANOFIBERS; ACETYLENE; FIBERS;

D O I：

10.1166/jnn.2012.6785

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Bulb-shaped field emission lamps (FELs) using carbon nano-coil (CNC) cathodes were fabricated and their performances were characterized. A straight steel wire grown with CNCs was placed on the symmetry axis in the bulb as the cathode. The anode was defined by a Ni film deposited on the bottom hemisphere of a 60-mm-diameter glass bulb. And a phosphor layer was coated on the Ni film for light generation via cathodoluminescence. A numerical simulation model for this geometry also was constructed. The simulated current-voltage curves agree well with the experimental results and reproduce the trends observed in the experiment. The effects of varying the length and diameter of the cathode were studied. Both experiment and simulation showed that the total field emission current increases with the cathode length and decreases with the cathode diameter. Although the design is simple and inherently low-cost, good uniformity of light emission over the entire anode was demonstrated.

引用

页码：8316 / 8322

页数：7

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