期刊
JOURNAL OF VACUUM SCIENCE & TECHNOLOGY B
卷 26, 期 5, 页码 1700-1704出版社
A V S AMER INST PHYSICS
DOI: 10.1116/1.2970144
关键词
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资金
- National Natural Science Foundation of China [50021202, 59889203, 60271026, 50329201]
Wire-type cold cathode was prepared by direct growth of carbon nanotube (CNT) on stainless-steel wire using thermal chemical vapor deposition. By varying the growth temperature, gas flow direction, and reactant gas mixture, improved field-emission uniformity and stability were achieved. The results show that the CNT cathodes grown by H-2/C2H2 mixture exhibit better current stability than those grown by Ar/C2H2 mixture. Fully sealed fluorescent lamps have been fabricated using wire-type CNT cold cathode. Luminescent efficiencies of 37 and 21 lm/W were obtained for the fully sealed lamps with green and white phosphor screens. (C) 2008 American Vacuum Society.
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