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首页> 外文期刊>ACS Omega >Charge Generation and Recombination in High Fullerene Content Organic Bulk Heterojunction Solar Cells
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Charge Generation and Recombination in High Fullerene Content Organic Bulk Heterojunction Solar Cells

机译：高富勒烯含量的有机体异质结太阳能电池中的电荷产生和复合。

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Organic bulk heterojunction solar cells with a high fullerene content (larger than 70%) have been studied in this work. The device performances of this kind of solar cell could be tuned by adjusting the blend ratio in the active layer. An appropriate amount of p-type semiconductor in the high fullerene content active blend layer is beneficial for light absorbance and exciton dissociation. The proper energy alignment between the highest occupied molecular orbital of a p-type material and an n-type fullerene derivative has a strong influence on the exciton dissociation efficiency. In addition, the mechanism of photogenerated charge recombination in the solar cells has been identified through intensity-dependent current density–voltage (J–V ) measurements and results show that the mechanisms governing the recombination are crucial for solar cell performance.
机译：在这项工作中，已经研究了富勒烯含量较高（大于70％）的有机体异质结太阳能电池。这种太阳能电池的器件性能可以通过调整有源层中的混合比来调整。高富勒烯含量的活性共混物层中适当量的p型半导体有利于光吸收和激子解离。 p型材料的最高占据分子轨道与n型富勒烯衍生物之间的适当能量取向对激子离解效率有很大影响。此外，通过强度相关的电流密度-电压（ JV）测量已经确定了太阳能电池中光生电荷重组的机制，结果表明，控制重组的机制对于太阳能电池的性能至关重要。

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