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arXiv 1306.3589cond-mat.mtrl-sci
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电极几何形状对polymer太阳能电池光伏性能的影响

Effect of electrode geometry on photovoltaic performance of polymer solar cells

Meng Li, Heng Ma, Zhaokui Wang, Chuankun Wang, Yurong Jiang, Ning Liu

摘要:

本文研究了电极几何形状对聚合物太阳能电池(PSC)性能的影响。对于具有相同面积(0.09 cm 2)但不同形状(圆形、椭圆形、正方形和三角形)的四种类型的负极,就PSC的短路电流密度、开路电压、填充因子和功率转换效率进行评价。结果表明,圆形电极的器件具有最好的光伏性能;相比之下,三角形电极的器件显示出最差的性能。与三角形电极相比,圆形电极的PCE最大增加了近两倍。因此,电极边界曲率对PSC的性能有很大的影响。较大的曲率,即较尖锐的电极边缘,可能是PSC系统中激子分离和载流子输运的负效应。

英文摘要:

This paper investigates the impact of electrode geometry on the performance of polymer solar cells (PSCs). Four types of negative electrodes with equal area (0.09 cm2) but different shape (round, oval, square, and triangular) are evaluated with respect to short-circuit current density, open-circuit voltage, fill factor, and power conversion efficiency of PSCs. The results show that the device with round electrodes gives the best photovoltaic performance; in contrast, the device with triangular electrodes reveals the worst properties. Maximum almost twice increase in PCE with round electrode is obtained in the devices compared with that of the triangular electrode. As a conclusion, the electrode boundary curvature has a strong influence on the performance of PSCs. The larger curvature, i.e. the sharper electrodes edge, maybe is a negative effector on exciton separation and carrier transport in PSC system.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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