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公开(公告)号:AU755927B2
公开(公告)日:2003-01-02
申请号:AU4358999
申请日:1999-06-11
Applicant: VISCOR PETR , NIELSEN NIELS OLE , DELONG ARMIN , KOLARIK VLADIMIR
Inventor: VISCOR PETR , NIELSEN NIELS OLE , DELONG ARMIN , KOLARIK VLADIMIR
IPC: H01J9/02 , H01J1/304 , H01J1/312 , H01J29/04 , H01J29/10 , H01J29/44 , H01J31/12 , H01J37/073 , H01J63/06 , H01J63/08 , H01L29/76 , H01L31/10 , H01L33/00 , H01J1/30
Abstract: A planar electron emitter, based on the existence of quasi-ballistic transport of electrons is disclosed. In its preferred embodiment the planar electron emitter structure consists of a body of finite gap pure semiconductor or insulator, the said body of macroscopic thickness (~1 mm) being terminated by two parallel surfaces and of a set of two electrodes deposited/grown on the said two free surfaces such that when a low external electrical field (~100 V/cm) is applied to this structure, consisting of two electrodes and the said semiconductor or insulating body sandwiched between them, a large fraction of electrons injected into the said semiconductor or insulator body from the negatively charged electrode (cathode) is quasi-ballistic in nature, that is this fraction of injected electrons is accelerated within the said semiconductor or insulator body without suffering any appreciable inelastic energy losses, thereby achieving sufficient energy and appropriate momentum at the positively charged electrode (anode) to be able to traverse through the said anode and to escape from the said structure into empty space (vacuum), said semiconductor or insulator body comprises a material or material system having a predetermined crystal orientation.
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公开(公告)号:CZ20004455A3
公开(公告)日:2002-06-12
申请号:CZ20004455
申请日:1999-06-11
Applicant: VISCOR PETR , NIELSEN NIELS OLE , DELONG ARMIN , KOLARIK VLADIMIR
Inventor: NIELSEN NIELS OLE , DELONG ARMIN , KOLARIK VLADIMIR , VISCOR PETR
IPC: H01J9/02 , H01J1/304 , H01J1/312 , H01J29/04 , H01J29/10 , H01J29/44 , H01J31/12 , H01J37/073 , H01J63/06 , H01J63/08 , H01L29/76 , H01L31/10 , H01L33/00 , H01J1/30
Abstract: A planar electron emitter, based on the existence of quasi-ballistic transport of electrons is disclosed. In its preferred embodiment the planar electron emitter structure consists of a body of finite gap pure semiconductor or insulator, the said body of macroscopic thickness (~1 mm) being terminated by two parallel surfaces and of a set of two electrodes deposited/grown on the said two free surfaces such that when a low external electrical field (~100 V/cm) is applied to this structure, consisting of two electrodes and the said semiconductor or insulating body sandwiched between them, a large fraction of electrons injected into the said semiconductor or insulator body from the negatively charged electrode (cathode) is quasi-ballistic in nature, that is this fraction of injected electrons is accelerated within the said semiconductor or insulator body without suffering any appreciable inelastic energy losses, thereby achieving sufficient energy and appropriate momentum at the positively charged electrode (anode) to be able to traverse through the said anode and to escape from the said structure into empty space (vacuum), said semiconductor or insulator body comprises a material or material system having a predetermined crystal orientation.
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