发明授权
US06949877B2 Electron emitter including carbon nanotubes and its application in gas discharge devices
失效
电子发射体包括碳纳米管及其在气体放电装置中的应用
- 专利标题： Electron emitter including carbon nanotubes and its application in gas discharge devices
- 专利标题（中）： 电子发射体包括碳纳米管及其在气体放电装置中的应用
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申请号： US09681374申请日： 2001-03-27
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公开(公告)号： US06949877B2公开(公告)日： 2005-09-27
- 发明人: Xiao-Dong Sun , Feng Jin , Anant Achyut Setlur
- 申请人： Xiao-Dong Sun , Feng Jin , Anant Achyut Setlur
- 申请人地址： US NY Niskayuna
- 专利权人： General Electric Company
- 当前专利权人： General Electric Company
- 当前专利权人地址： US NY Niskayuna
- 代理机构： Fletcher Yoder
- 主分类号： H01J1/304
- IPC分类号： H01J1/304 ; H01J9/02 ; H01J61/067 ; H01J61/073 ; H01J1/14 ; H01J1/04 ; H01J19/06
摘要：
An electron emitter includes a coating layer of a mixture of carbon nanotubes and alkaline-earth metal oxides on an electrically conducting structure. The preferred carbon nanotubes are those having a diameter less than about 200 nm. A substantial portion of electron emission is liberated from the carbon nanotubes, thus lessening the requirement on the alkaline-earth oxides. Such an electron emitter is advantageously used in gas discharge devices to increase the energy efficiency thereof.