Enhanced Performance of Electrospun PVP:PC71BM Nanofiber for Organic Solar Cells

2020 IEEE 2nd International Conference on Artificial Intelligence in Engineering and Technology (IICAIET) Pub Date : 2020-09-26 DOI:10.1109/IICAIET49801.2020.9257868

H. Mohd.Zuhir, I. Saad, N. Bolong, B. Ghosh

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Abstract

The effect of electrospinning parameters on the morphology and efficiency of non-conjugated polar polymers PC71BM was systematically investigated by varying the applied voltage, needle tip-to-collector distance and flow rate respectively. The best PVP:PC71BM nanofiber efficiency is at applied voltage of 15kV which is about 8.75% followed by 1.0mL/hr flow rate and 10cm needle to collector distance with PCE=7.40% and 6.86% respectively. The device with applied voltage of 15kV exhibits enhanced short circuit current and fill factor by 17.60 mA cm−2 and 69.8% respectively with uniform and consistently aligned fabricated nanofiber. This is due to the extremely organized PVP:PC71BM nanofiber molecular structure that offers tightly arranged molecular chain structure and excellent chemical resistance which offers improves electron mobility and long term reliability of the device. This provides better controllability of the organic solar cell (OSC) nanofiber characteristics towards better power conversion efficiency, improved reliability and lifetime encapsulation.

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有机太阳能电池用静电纺丝PVP:PC71BM纳米纤维性能的提高

通过改变外加电压、针尖到集电极的距离和流速，系统地研究了静电纺丝参数对非共轭极性聚合物PC71BM形貌和效率的影响。PVP:PC71BM纳米纤维效率在施加电压为15kV时最佳，约为8.75%，其次是1.0mL/hr流速和10cm针距集电极距离，PCE分别为7.40%和6.86%。当施加电压为15kV时，由于纳米纤维排列均匀，器件的短路电流和填充系数分别提高了17.60 mA cm−2和69.8%。这是由于PVP:PC71BM纳米纤维分子结构非常有组织，提供紧密排列的分子链结构和优异的耐化学性，从而提高了电子迁移率和设备的长期可靠性。这为有机太阳能电池(OSC)纳米纤维特性提供了更好的可控性，从而提高了功率转换效率，提高了可靠性和封装寿命。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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2020 IEEE 2nd International Conference on Artificial Intelligence in Engineering and Technology (IICAIET)

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