PHOTON ENHANCED THERMIONIC EMISSION
    1.
    发明公开
    PHOTON ENHANCED THERMIONIC EMISSION 有权
    PHOTONENVERSTÄRKTETHERMIONISCHE EMISSION

    公开(公告)号:EP2335268A2

    公开(公告)日:2011-06-22

    申请号:EP09764926.3

    申请日:2009-10-19

    IPC分类号: H01J40/04 H01J45/00 H01J40/06

    摘要: Photon Enhanced Thermionic Emission (PETE) is exploited to provide improved efficiency for radiant energy conversion. A hot (greater than 200 0C) semiconductor cathode is illuminated such that it emits electrons. Because the cathode is hot, significantly more electrons are emitted than would be emitted from a room temperature (or colder) cathode under the same illumination conditions. As a result of this increased electron emission, the energy conversion efficiency can be significantly increased relative to a conventional photovoltaic device. In PETE, the cathode electrons can be (and typically are) thermalized with respect to the cathode. As a result, PETE does not rely on emission of non-thermalized electrons, and is significantly easier to implement than hot-carrier emission approaches.