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首页> 外文会议>European Photovoltaic Solar Energy Conference and Exhibition >SELF-CONSISTENT MODELING OF DOUBLE RESONANT TUNNELING BARRIERS SELECTIVE CONTACTS FOR HOT CARRIER SOLAR CELLS
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SELF-CONSISTENT MODELING OF DOUBLE RESONANT TUNNELING BARRIERS SELECTIVE CONTACTS FOR HOT CARRIER SOLAR CELLS

机译：热载体太阳能电池双共振隧道屏障选择性触点的自我一致建模

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We address the evaluation of energy selective contacts for hot carrier solar cells through numerical modeling of heterostructures based on Ⅲ-Ⅴ materials with a resonant energy level that acts as the energy selective level. A self-consistent code is developed using the transfer matrix formalism and the effective mass approximation to model the behavior of a double resonant tunneling barrier under various conditions. The application of a polarization to the structure is found to significantly reduce the transmission of the double barrier through the resonant level due to the breaking of the symmetry, and we show that such effect can be offset by using an asymmetrical double barrier to recover a transmission close to one under a specific electric bias. The behavior of such double barrier is also studied when hot electrons transit from the emitter side to the collector side, by modeling the variation of the current voltage characteristic for different electrons' temperatures. A negative differential resistance is observed and the variations of some specific features of the curve are physically interpreted, giving important insight on the expected behavior of a hot carrier solar cell using double resonant tunneling barriers as selective contact.
机译：我们通过基于Ⅲ-Ⅴ与作为能量选择电平的谐振的能级的材料的异质结构的数值模拟地址为热载流子太阳能电池的能量选择性接触的评价。的自相一致的代码是使用传递矩阵形式主义和有效质量近似在各种条件下的双重谐振隧穿势垒的行为进行建模开发的。一偏振的结构的应用被发现显著减少通过谐振电平的双屏障的传输由于对称性的破坏，我们表明，这样的效果可以通过使用非对称的双屏障恢复的传输偏移接近一个特定的电器偏下。这样的双屏障的行为进行了研究，当热电子渡越从发射极侧流向集电极侧的，通过对于不同的电子的温度下的电流电压特性的变化进行建模。负微分电阻观察到与曲线的一些具体特征中的变化解释物理，给出关于使用双谐振隧穿势垒作为选择性接触的热载流子太阳能电池的预期行为的重要见解。

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