期刊
ACS APPLIED MATERIALS & INTERFACES
卷 6, 期 3, 页码 1986-1991出版社
AMER CHEMICAL SOC
DOI: 10.1021/am405026y
关键词
carbon nanotube; water assisted CVD; adhesion; field emission; ohmic contact
资金
- IISc (Indian Institute of Science), Bangalore
- U.S. Army Research Laboratory/Army Research Office [W911NF]
One of the most promising materials for fabricating cold cathodes for next generation high-performance flat panel devices is carbon nanotubes (CNTs). For this purpose, CNTs grown on metallic substrates are used to minimize contact resistance. In this report, we compare properties and field emission performance of CNTs grown via water assisted chemical vapor deposition using Inconel vs silicon (Si) substrates. Carbon nanotube forests grown on Inconel substrates are superior to the ones grown on silicon; low turn-on fields (similar to 1.5 V/mu m), high current operation (similar to 100 mA/cm(2)) and very high local field amplification factors (up to similar to 7300) were demonstrated, and these parameters are most beneficial for use in vacuum microelectronic applications.
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