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    • 9. 发明授权
    • Heterostructure thermionic coolers
    • 异质结构热离子冷却器
    • US06323414B1
    • 2001-11-27
    • US09548011
    • 2000-04-12
    • Ali ShakouriJohn E. Bowers
    • Ali ShakouriJohn E. Bowers
    • H01L3530
    • H01L29/861H01L29/205H01L29/267
    • A heterostructure thermionic cooler and a method for making thermionic coolers, employing a barrier layer of varying conduction bandedge for n-type material, or varying valence bandedge for p-type material, that is placed between two layers of material. The barrier layer has a high enough barrier for the cold side to only allow “hot” electrons, or electrons of high enough energy, across the barrier. The barrier layer is constructed to have an internal electric field such that the electrons that make it over the initial barrier are assisted in travel to the anode. Once electrons drop to the energy level of the anode, they lose energy to the lattice, thus heating the lattice at the anode. The barrier height of the barrier layer is high enough to prevent the electrons from traveling in the reverse direction.
    • 异质结构热离子冷却器和用于制造热离子冷却器的方法,使用放置在两层材料之间的用于n型材料的变化的导带的阻挡层或用于p型材料的变化的带状带。 阻挡层具有足够高的阻挡层,用于冷侧仅允许穿过屏障的“热”电子或足够高能量的电子。 阻挡层被构造成具有内部电场,使得使其超过初始屏障的电子被辅助到行进到阳极。 一旦电子下降到阳极的能级,它们就会失去晶格的能量,从而在阳极处加热晶格。 阻挡层的势垒高度足够高以防止电子沿相反方向传播。