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公开(公告)号：US10479689B2
公开(公告)日：2019-11-19
申请号：US15966539
申请日：2018-04-30
发明人： Jie Tang , Qian Cheng , Norio Shinya , Luchang Qin
IPC分类号： C01B32/19 , H01G11/32 , C01B32/184 , B82Y30/00 , B82Y40/00 , H01G11/36 , C25B9/00 , C25B13/02
摘要： The problem addressed by the present invention is to provide an apparatus for preparing ultrathin graphene pieces capable of preparing ultrathin graphene pieces in which less than 10 pieces of graphene are overlapped in large quantities, a method for preparing ultrathin graphene pieces capable of preparing the ultrathin graphene pieces with high yield, an ultrathin graphene piece in which less than 10 pieces of graphene are overlapped, a capacitor having high performance by using the ultrathin graphene piece as an electrode, and an efficient method of manufacturing the capacitor. The above-described problem can be solved by using an apparatus 20 for preparing ultrathin graphene pieces, the apparatus comprising: a graphite electrode 21; a counter electrode 22 which is made of graphite, a corrosion resistant alloy, or a precious metal; an electrolytic solution 25 in which one end sides of the two electrodes 21 and 22 are immersed; a container 24 which stores the electrolytic solution 25; and a power source 28 which is connected to the two electrodes 21 and 22 via wirings 26 and 27. The apparatus is also provided with a porous filter 23 so as to cover at least the immersed part of the graphite electrode 21 that is immersed in the electrolytic solution 25.
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公开(公告)号：US11915920B2
公开(公告)日：2024-02-27
申请号：US17768017
申请日：2020-10-20
发明人： Jie Tang , Shuai Tang , Ta-Wei Chiu , Tadakatsu Ohkubo , Jun Uzuhashi , Kazuhiro Hono , Luchang Qin
摘要： The present invention provides a simpler method for sharpening a tip of an emitter. In addition, the present invention provides an emitter including a nanoneedle made of a single crystal material, an emitter including a nanowire made of a single crystal material such as hafnium carbide (HfC), both of which stably emit electrons with high efficiency, and an electron gun and an electronic device using any one of these emitters. A method for manufacturing the emitter according to an embodiment of the present invention comprises processing a single crystal material in a vacuum using a focused ion beam to form an end of the single crystal material, through which electrons are to be emitted, into a tapered shape, wherein the processing is performed in an environment in which a periphery of the single crystal material fixed to a support is opened.
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公开(公告)号：US20220130634A1
公开(公告)日：2022-04-28
申请号：US17423149
申请日：2020-01-06
发明人： Han Zhang , Jie Tang , Daisuke Fujita , Yasushi Yamauchi , Luchang Qin
IPC分类号： H01J37/073 , H01J37/063 , H01J9/12
摘要： The purpose of the present invention is to provide an emitter capable of easily and highly efficiently emitting electrons, an electron gun using same, and an electronic device.
This emitter is provided with a cathode holder, and an acicular substance secured to the cathode holder. An end, to which the acicular substance is secured, of the cathode holder is bent at α(α(°) satisfies 5-
公开(公告)号：US11037736B2
公开(公告)日：2021-06-15
申请号：US16484491
申请日：2018-01-24
发明人： Jie Tang , Yige Sun , Luchang Qin
IPC分类号： H01G11/06 , C04B35/83 , H01G11/26 , H01G11/36 , H01G11/50 , H01G11/62 , H01G11/86 , B82Y30/00
摘要： The present invention provides a lithium ion capacitor (LIC) that achieves high specific capacity and high energy density. The lithium ion capacitor according to the present invention includes a cathode, an anode arranged apart from the cathode, and a Li-ion electrolyte with which a space between the cathode and the anode is filled. The cathode is made of a composite of graphene and carbon nanotubes, the anode is made of a Li-doped composite of graphene and carbon nanotubes, and the mass ratio of the anode to the cathode is larger than 0 and less than 1.0.
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公开(公告)号：US20180019091A1
公开(公告)日：2018-01-18
申请号：US15548623
申请日：2016-02-26
发明人： Jie Tang , Jinshi Yuan , Han Zhang , Luchang Qin
CPC分类号： H01J29/48 , H01J9/02 , H01J29/481 , H01J37/073 , H01J37/3178 , H01J2209/0223
摘要： The emitter of the present invention includes a nanowire. The nanowire is formed from a hafnium carbide (HfC) single crystal, and at least an end portion of the hafnium carbide single crystal, from which electrons are to be emitted, is covered with hafnium oxide (HfO2). In the emitter, the thickness of the hafnium oxide may be 1 nm to 20 nm.
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公开(公告)号：US11984294B2
公开(公告)日：2024-05-14
申请号：US17622994
申请日：2020-06-29
发明人： Jie Tang , Shuai Tang , Ta-Wei Chiu , Wataru Hayami , Luchang Qin
IPC分类号： H01J37/065
CPC分类号： H01J37/065 , H01J2237/06316 , H01J2237/06341
摘要： The present invention provides an emitter made of a hafnium carbide (HfC) single crystal that stably emits electrons with high efficiency, a method for manufacturing the emitter, and an electron gun and an electronic device using the emitter. An emitter according to an embodiment of the present invention is an emitter including a nanowire, in which the nanowire is made of the hafnium carbide (HfC) single crystal, at least an end of the nanowire through which electrons are to be emitted is coated with hafnium oxycarbide (HfC1-xOx: 0
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公开(公告)号：US10026585B2
公开(公告)日：2018-07-17
申请号：US15548623
申请日：2016-02-29
发明人： Jie Tang , Jinshi Yuan , Han Zhang , Luchang Qin
CPC分类号： H01J29/48 , H01J9/02 , H01J29/481 , H01J37/073 , H01J37/3178 , H01J2209/0223
摘要： The emitter of the present invention includes a nanowire. The nanowire is formed from a hafnium carbide (HfC) single crystal, and at least an end portion of the hafnium carbide single crystal, from which electrons are to be emitted, is covered with hafnium oxide (HfO2). In the emitter, the thickness of the hafnium oxide may be 1 nm to 20 nm.
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公开(公告)号：US10014126B2
公开(公告)日：2018-07-03
申请号：US15121463
申请日：2015-02-26
发明人： Jie Tang , Faxiang Qin , Luchang Qin
摘要： As an object to provide a lithium-ion supercapacitor having a high energy density and a high power density, capable of being charged and discharged many times, and having a long product life, there is provided a lithium-ion supercapacitor using a graphene/CNT composite electrode, the lithium-ion supercapacitor including: an anode; a cathode that is arranged to be separated from the anode; and a lithium ion electrolytic solution that fills in a space between the anode and the cathode, wherein either or both of the cathode and the anode are formed by a graphene/CNT composite, and a CNT concentration in the graphene/CNT composite is 17 wt % or more and 33 wt % or less.
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9.发明授权Metal hexaboride cold field emitter, method of fabricating same, and electron gun 有权金属六硼化物冷场发射器，其制造方法和电子枪公开(公告)号：US08952605B2
公开(公告)日：2015-02-10
申请号：US14370082
申请日：2013-06-26
发明人： Han Zhang , Jie Tang , Luchang Qin , Jinshi Yuan , Norio Shinya , Yasushi Yamauchi
IPC分类号： H01J29/46 , H01J1/304 , H01J37/073 , H01J37/285
CPC分类号： H01J1/304 , H01J1/3044 , H01J9/025 , H01J37/073 , H01J37/285 , H01J2201/30411 , H01J2201/30492 , H01J2237/06341
摘要： A metal hexaboride nanowire such as LaB6 with the formed metal-terminated (100) plane at the tip has a small work function, and can emit a very narrow electron beam from the (100) plane. In such emitters, contamination occurs in a very short time period, and the output current greatly decreases when used under low temperature. The cold field emitter of the present invention overcomes this problem with a stabilization process that exposes the metal-terminated (100) plane of the tip to hydrogen at low temperature, and can stably operate over extended time periods.
摘要翻译： 具有尖端形成的金属端接（100）面的LaB6等金属六硼化物纳米线具有较小的功函数，并能从（100）面发射非常窄的电子束。 在这样的发射器中，污染发生在非常短的时间段内，当在低温下使用时，输出电流大大降低。 本发明的冷场发射器通过将尖端的金属端接（100）面低温暴露于氢的稳定化处理来克服这个问题，并能够在延长的时间段内稳定地工作。
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10.发明申请METAL HEXABORIDE COLD FIELD EMITTER, METHOD OF FABRICATING SAME, AND ELECTRON GUN 有权金属十字架冷场发射器，其制造方法和电子枪公开(公告)号：US20150002009A1
公开(公告)日：2015-01-01
申请号：US14370082
申请日：2013-06-26
发明人： Han Zhang , Jie Tang , Luchang Qin , Jinshi Yuan , Norio Shinyq , Yasushi Yamauchi
IPC分类号： H01J1/304 , H01J37/285 , H01J37/073
CPC分类号： H01J1/304 , H01J1/3044 , H01J9/025 , H01J37/073 , H01J37/285 , H01J2201/30411 , H01J2201/30492 , H01J2237/06341
摘要： A metal hexaboride nanowire such as LaB6 with the formed metal-terminated (100) plane at the tip has a small work function, and can emit a very narrow electron beam from the (100) plane. In such emitters, contamination occurs in a very short time period, and the output current greatly decreases when used under low temperature. The cold field emitter of the present invention overcomes this problem with a stabilization process that exposes the metal-terminated (100) plane of the tip to hydrogen at low temperature, and can stably operate over extended time periods.
摘要翻译： 具有尖端形成的金属端接（100）面的LaB6等金属六硼化物纳米线具有较小的功函数，并能从（100）面发射非常窄的电子束。 在这样的发射器中，污染发生在非常短的时间段内，当在低温下使用时，输出电流大大降低。 本发明的冷场发射器通过将尖端的金属端接（100）面低温暴露于氢的稳定化处理来克服这个问题，并能够在延长的时间段内稳定地工作。
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