CuI空穴传输层提高聚合物太阳能电池Jsc, Voc及FF的研究

doi:10.3969/j.issn.0253-2778.2017.07.010

中国科学技术大学学报 ›› 2017, Vol. 47 ›› Issue (7): 621-626.DOI: 10.3969/j.issn.0253-2778.2017.07.010

• 论著 • 上一篇

CuI空穴传输层提高聚合物太阳能电池Jsc, Voc及FF的研究

苏和堂，赵玉霞，丁健，董可秀，于文娟，何烨

1.滁州职业技术学院机电工程系，安徽滁州 239000；2.滁州学院电子与电气工程学院，安徽滁州 239000；
3.滁州学院外语学院，安徽滁州 239000

收稿日期:2016-12-16 修回日期:2017-07-17 出版日期:2017-07-31 发布日期:2017-07-31

Simultaneous improvement of Jsc, Voc and FF of polymer solar cells with CuI as hole transport layer

SU Hetang, ZHAO Yuxia, DING Jian, DONG Kexiu, YU Wenjuan, HE Ye

1.Department of Mechanical and Electrical Engineering, Chuzhou Vocational and Technical College, Chuzhou 239000, China;
2.School of Mechanical and Electronic Engineering, Chuzhou University, Chuzhou 239000, China;
3.School of Foreign Languages, Chuzhou University, Chuzhou 239000, China.

Received:2016-12-16 Revised:2017-07-17 Online:2017-07-31 Published:2017-07-31
Contact: YU Wenjuan
About author:SU Hetang, male, born in 1966, Master/Associate Professor. Research field: Solar cells, machine electricity. E-mail: chuzhoushu@163.com
Supported by:
Supported by the University Natural Science Research Project of Anhui Province (KJ2017A417, KJ2015A153), Scientific Research Starting Fund of Chuzhou University (2016qd05).

摘要/Abstract

摘要： 针对碘化铜在器件中既是空穴传输层，又是电子阻挡层的特点，提出在PCDTBT、PC70BM聚合物太阳能电池中引入了碘化铜（CuI）传输层。将碘化铜淀积到顶电极银和聚合物材料之间，有效地提高了器件的空穴传输能力。实验优化了碘化铜传输层的厚度，研究了不同顶电极对聚合物太阳能电池的影响，证明了碘化铜能够同时提高电池的短路电流密度、开路电压和填充因子，因此得到了效率显著提高的太阳能电池。对于使用金电极的电池，碘化铜厚度为3 nm时，电池效率从0.67%提高到5.47%，当进一步提高碘化铜厚度时，对于金、银两种电极，电池效率均由于阻挡效应而下降。实验结果表明，碘化铜是PCDTBT、PC70BM聚合物太阳能电池的一种有效的传输层材料。

关键词: 聚合物太阳能电池, 空穴传输层, 碘化铜

Abstract: A novel buffer layer copper iodide (CuI) was introduced into PCDTBT, PC70BM polymer solar cells (PSCs), where the CuI acts simultaneously as of hole transport layer (HTL) and electron block layer (EBL). Through depositing the CuI between the polymer and Ag and Au anodes, the hole collection ability has been increased. By optimizing the thickness of CuI and top anode, simultaneous enhancement of short-circuit current density (Jsc), open-circuit voltage (Voc), and fill factor (FF) has been achieved, leading to a dramatic increase of device efficiency, from 0.67% to 5.47% with 3 nm CuI and Au anode in comparison with the device without CuI. With thicker CuI, the efficiency decreases noticeably both for Au and Ag anodes due to the block effect. The result indicates that the CuI is an effective buffer layer for PCDTBT, PC70BM PSCs.

Key words: polymer solar cells, hole transport layer, copper iodide

中图分类号:

O157.4

苏和堂，赵玉霞，丁健，董可秀，于文娟，何烨. CuI空穴传输层提高聚合物太阳能电池Jsc, Voc及FF的研究[J]. 中国科学技术大学学报, 2017, 47(7): 621-626.

SU Hetang, ZHAO Yuxia, DING Jian, DONG Kexiu, YU Wenjuan, HE Ye. Simultaneous improvement of Jsc, Voc and FF of polymer solar cells with CuI as hole transport layer[J]. Journal of University of Science and Technology of China, 2017, 47(7): 621-626.

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CuI空穴传输层提高聚合物太阳能电池Jsc, Voc及FF的研究

Simultaneous improvement of Jsc, Voc and FF of polymer solar cells with CuI as hole transport layer

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