Effect of degassed elements on the degradation behavior of carbon nanotube cathodes in sealed field emission-backlight units

被引：18
|
作者：
Lee, S [1 ]
Jeon, DY [1 ]
机构：
[1] Korea Adv Inst Sci & Technol, Dept Mat Sci & Engn, Taejon 305701, South Korea
来源：
APPLIED PHYSICS LETTERS | 2006年 / 88卷 / 06期
关键词：
D O I：
10.1063/1.2167791
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
The effect of degassed elements from the phosphor layer on a carbon nanotube (CNT) cathode was investigated. During the operation of field emission backlight units, it was found that zinc and sulfur were degassed from the phosphor anode. X-ray photoelectron spectroscopy analysis showed that sp(2) bonding in the CNTs changed to zinc-assisted sp(3)-like bonding, modified by the adsorption of the zinc. The change of the CNT structure to a nonhexagonal carbon network suggests that the electron emission from the degraded CNT tips decreases due to the higher work function of sp(3)-like bonding, compared to that of sp(2) bonding.
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页数：3
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