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中文摘要：
研究了线偏振光振动方向对InGaP／InGaAs／Ge三结太阳电池开路电压的影响，结果表明开路电压随线偏振光电位移矢量振动方向按周期性变化，变化的幅度在1％—4％左右．理论分析证实了线偏振光电位移矢量的调制可以改变太阳电池的输出开路电压，是由于三结太阳电池晶体结构以及应力影响导致能带结构出现各向异性产生的．此外，实验结合理论分析，研究了三结太阳电池开路电压随光照度的变化关系，得出开路电压随光强变化成对数关系．拟合结果说明三结级联太阳电池可以简单看成三个单结太阳电池串联，其理想因子接近6，是由于三结太阳电池中缺陷影响的结果．
英文摘要：
In this paper, it is investigated experimentally that the open-circuit voltage of InGaP/InGaAs/Ge triple-junction solar cell is influenced by the vibration direction of the electric vector of linearly polarized light. The results show that those voltages are subjected to periodic changes with the vibration direction of the electric vector, and the magnitude of change is about 1%-4%. It is due to the effect of anisotropy of band structure in the three-junction solar cell,which is confirmed by theoretical analysis. In addition, through combining the experimental study with theoretical analysis, the relationship between open-circuit voltage and illumination, is studied, showing that they are related to each other logarithmically, which is different from characteristics of a single-junction solar cell. From fitting results, it is indicated that the triple-junction solar cells may be regarded as three diodes connected in series, of which the ideality factor is close to 6. This is due to many defects in three-junction solar cells.
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