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1.
公开(公告)号:JP2000223004A
公开(公告)日:2000-08-11
申请号:JP2000015644
申请日:2000-01-25
Applicant: LUCENT TECHNOLOGIES INC
Inventor: JIN SUNGHO , KOCHANSKI GREGORY PETER , ZHU WEI
Abstract: PROBLEM TO BE SOLVED: To provide adhesiveness and a stable structure, and to relatively facilitate manufacture, by projecting at least a part of nano-tubes from the surface of a composite material and setting average projection two times higher than the average diameter of the nano-tube in the composite material. SOLUTION: Carbon nano-tubes 10 and conductive metal powder 12 are prepared, and are actually mixed as uniform as possible, and an obtained composite material is pressed into a green compact 14. An ingot is cut in parallel with an intended emitter surface, or a composite material layer is polished and removed from an ingot surface to expose many nano-tubes 16. A metal layer is removed with edges from the surface of the cut ingot 17 to provide many projecting nano-tubes 16. In this case, length of the projections is two times longer than an average diameter of the nano-tubes, and more preferably 10 times longer than the average diameter.
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2.
公开(公告)号:JP2000223005A
公开(公告)日:2000-08-11
申请号:JP2000015645
申请日:2000-01-25
Applicant: LUCENT TECHNOLOGIES INC
Inventor: JIN SUNGHO , KOCHANSKI GREGORY PETER , ZHU WEI
IPC: B01J20/20 , C01B3/00 , C01B31/02 , H01J1/304 , H01J9/02 , H01J23/05 , H01J25/38 , H01J29/04 , H01J31/12
Abstract: PROBLEM TO BE SOLVED: To provide a method for improving emission characteristics of a set of aligned nanotubes. SOLUTION: Emission characteristics of aligned nanotube array 12 are improved by cutting off an end of a nanotube. The nanotube 12 which has a length of not more than 30% of an average cut-off nanotube and has an end substantially without an end cap is provided by cutting off the end. The end without the cap provides a desired electric field convergence, and high uniformity increases the number of contributing nanotubes.
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公开(公告)号:DE60014461D1
公开(公告)日:2004-11-11
申请号:DE60014461
申请日:2000-01-19
Applicant: LUCENT TECHNOLOGIES INC
Inventor: JIN SUNGHO , KOCHANSKI GREGORY PETER , ZHU WEI
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公开(公告)号:DE60014461T2
公开(公告)日:2006-03-09
申请号:DE60014461
申请日:2000-01-19
Applicant: LUCENT TECHNOLOGIES INC
Inventor: JIN SUNGHO , KOCHANSKI GREGORY PETER , ZHU WEI
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公开(公告)号:AU6543000A
公开(公告)日:2001-04-26
申请号:AU6543000
申请日:2000-10-11
Applicant: LUCENT TECHNOLOGIES INC
Inventor: FILAS ROBERT WILLIAM , ZHU WEI , KOCHANSKI GREGORY PETER , JIN SUNGHO
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6.
公开(公告)号:AU1251500A
公开(公告)日:2000-07-27
申请号:AU1251500
申请日:2000-01-20
Applicant: LUCENT TECHNOLOGIES INC
Inventor: JIN SUNGHO , ZHU WEI , KOCHANSKI GREGORY PETER
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7.
公开(公告)号:AU6447399A
公开(公告)日:2000-07-27
申请号:AU6447399
申请日:1999-12-13
Applicant: LUCENT TECHNOLOGIES INC
Inventor: JIN SUNGHO , ZHU WEI , KOCHANSKI GREGORY PETER
IPC: B81C1/00 , H01J1/304 , H01J9/02 , H01J23/04 , H01J23/06 , H01J25/38 , H01J29/04 , H01J31/12 , H01J19/24
Abstract: An improved process for fabricating nanotube field emitter structures is provided, in which the nanotubes protrude from a supporting base material to improve emission properties. The resulting emitter structure are useful in a variety of devices, including microwave vacuum tube devices and flat-panel, field-emission displays. To attain the protruding nanotube emitter structure, according to one embodiment of the invention, nanotubes and metal particles are mixed and consolidated into a compact, and the compact is then sectioned to expose a substantial number of nanotube ends. A layer of the metal is selectively etched from the sectioned surface, leaving the exposed nanotubes protruding from the surface. The extent of protrusion is at least twice the average diameter of the nanotubes, advantageously at least ten times the average diameter of the nanotubes.
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8.
公开(公告)号:CA2295290A1
公开(公告)日:2000-07-25
申请号:CA2295290
申请日:2000-01-10
Applicant: LUCENT TECHNOLOGIES INC
Inventor: JIN SUNGHO , KOCHANSKI GREGORY PETER , ZHU WEI
IPC: B01J20/20 , C01B3/00 , C01B31/02 , H01J1/304 , H01J9/02 , H01J23/05 , H01J25/38 , H01J29/04 , H01J31/12 , H01J9/12
Abstract: The emission properties of aligned nanotube arrays are improved by truncating the ends of the nanotubes. Truncation provides nanotubes having a height within, for example, 30% of the average truncated nanotube height, as well as ends substantially free of end caps. The cap-free ends provide desirable field concentration, and the height uniformity increases the number of participating nanotubes.
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9.
公开(公告)号:CA2294656A1
公开(公告)日:2000-07-25
申请号:CA2294656
申请日:2000-01-07
Applicant: LUCENT TECHNOLOGIES INC
Inventor: KOCHANSKI GREGORY PETER , JIN SUNGHO , ZHU WEI
IPC: B81C1/00 , H01J1/304 , H01J9/02 , H01J23/04 , H01J23/06 , H01J25/38 , H01J29/04 , H01J31/12 , H01J1/00
Abstract: An improved process for fabricating nanotube field emitter structures is provided, in which the nanotubes protrude from a supporting base material to improve emission properties. The resulting emitter structure are useful in a variety of devices, including microwave vacuum tube devices and flat-panel, field-emission displays. To attain the protruding nanotube emitter structure, according to one embodiment of the invention, nanotubes and metal particles are mixed and consolidated into a compact, and the compact is then sectioned to expose a substantial number of nanotube ends. A layer of the metal is selectively etched from the sectioned surface, leaving the exposed nanotubes protruding from the surface. The extent of protrusion is at least twice the average diameter of the nanotubes, advantageously at least ten times the average diameter of the nanotubes.
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