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公开(公告)号:US20170250048A1
公开(公告)日:2017-08-31
申请号:US15442408
申请日:2017-02-24
Applicant: California Institute of Technology
Inventor: Axel SCHERER , William M. JONES , Danil M. LUKIN , Sameer WALAVALKAR , Chieh-feng CHANG
CPC classification number: H01J19/24 , H01J9/025 , H01J21/02 , H01J21/105 , H01J2209/0223
Abstract: Nanoscale field-emission devices are presented, wherein the devices include at least a pair of electrodes separated by a gap through which field emission of electrons from one electrode to the other occurs. The gap is dimensioned such that only a low voltage is required to induce field emission. As a result, the emitted electrons energy that is below the ionization potential of the gas or gasses that reside within the gap. In some embodiments, the gap is small enough that the distance between the electrodes is shorter than the mean-free path of electrons in air at atmospheric pressure. As a result, the field-emission devices do not require a vacuum environment for operation.
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公开(公告)号:US20180277329A1
公开(公告)日:2018-09-27
申请号:US15987645
申请日:2018-05-23
Applicant: California Institute of Technology
Inventor: Axel SCHERER , William M. JONES , Danil M. LUKIN , Sameer WALAVALKAR , Chieh-feng CHANG
CPC classification number: H01J19/24 , H01J9/025 , H01J21/02 , H01J21/105 , H01J2209/0223
Abstract: Nanoscale field-emission devices are presented, wherein the devices include at least a pair of electrodes separated by a gap through which field emission of electrons from one electrode to the other occurs. The gap is dimensioned such that only a low voltage is required to induce field emission. As a result, the emitted electrons energy that is below the ionization potential of the gas or gasses that reside within the gap. In some embodiments, the gap is small enough that the distance between the electrodes is shorter than the mean-free path of electrons in air at atmospheric pressure. As a result, the field-emission devices do not require a vacuum environment for operation.
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