Effect of anode buffer layer modification on the performance of polymer solar cells

被引：0
|
作者：
Li X. [1 ]
Xu D.-H. [1 ]
Zhao J. [1 ]
Geng A.-C. [1 ]
Deng Z.-B. [2 ]
机构：
[1] Department of Physics, Beijing Technology and Business University, Beijing
[2] Key Laboratory of Luminescence and Optical Information, Institute of Optoelectronic Technology, Beijing Jiaotong University, Beijing
来源：
Faguang Xuebao/Chinese Journal of Luminescence | 2016年 / 37卷 / 03期
关键词：
Anode buffer layer; Conductivity; PEDOT:PSS; Polymer solar cells;
D O I：
10.3788/fgxb20163703.0321
中图分类号：
学科分类号：
摘要：
In order to improve the performance of polymer solar cells, polyethylene glycol (PEG) was incorporated into PEDOT:PSS layer, and the effect of anode buffer layer modification on the performance of polymer solar cells was studied. First, the effect of PEG on the conductivity of PEDOT:PSS films was studied, and the results show that PEG interacts with PEDOT and PSS, and reorients the PEDOT polymer chains, which improves the conductivity of PEDOT:PSS layer significantly. PEDOT:PSS layer with 2%-4%(volume fraction) PEG has the optimized conductivity. Then the bulk heterojunction polymer solar cells based on PEG modified PEDOT:PSS anode buffer layer were prepared. It is found that PEG improves the short-circuit current density and fill factor obviously. The polymer solar cell with 2% PEG modified PEDOT:PSS layer gives the maximum power conversion efficiency, as compared with the control device without PEG, 24.4% efficiency enhancement is achieved. © 2016, Science Press. All right reserved.
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页码：321 / 326
页数：5
相关论文
共 22 条
  • [1] Scharber M.C., Sariciftci N.S., Efficiency of bulk-heterojunction organic solar cells, Prog. Polym. Sci., 38, 12, pp. 1929-1940, (2013)
  • [2] He Z.C., Wu H.B., Cao Y., Recent advances in polymer solar cells: realization of high device performance by incorporating water/alcohol-soluble conjugated polymers as electrode buffer layer, Adv. Mater., 26, 7, pp. 1006-1024, (2014)
  • [3] Blouin N., Michaud A., Leclercm, A low-bandgap poly (2, 7-Carbazole) derivative for use in high-performance solar cells, Adv. Mater., 19, 17, pp. 2295-2300, (2007)
  • [4] Huo L.J., Zhang S.Q., Guo X., Et al., Replacing alkoxy groups with alkylthienyl groups: a feasible approach to improve the properties of photovoltaic polymers, Angew. Chem. Int. Ed., 50, 41, pp. 9697-9702, (2011)
  • [5] Lu L.Y., Yu L.P., Understanding low bandgap polymer PTB7 and optimizing polymer solar cells based on it, Adv. Mater., 26, 26, pp. 4413-4430, (2014)
  • [6] Kim J.Y., Lee K., Coates N.E., Et al., Efficient tandem polymer solar cells fabricated by all-solution processing, Science, 317, 5835, pp. 222-225, (2007)
  • [7] Ameri T., Khoram P., Min J., Et al., Organic ternary solar cells: a review, Adv. Mater., 25, 31, pp. 4245-4266, (2013)
  • [8] Morfa A.J., Rowlen K.L., Reillyt H., Et al., Plasmon-enhanced solar energy conversion in organic bulk heterojunction photovoltaics, Appl. Phys. Lett., 92, 1, (2008)
  • [9] Fung D.D.S., Qiao L.F., Choy W.C.H., Et al., Optical and electrical properties of efficiency enhanced polymer solar cells with Au nanoparticles in a PEDOT-PSS layer, J. Mater. Chem., 21, 41, pp. 16349-16356, (2011)
  • [10] Steim R., Choulis S.A., Schilinsky P., Et al., Interface modification for highly efficient organic photovoltaics, Appl. Phys. Lett., 92, 9, (2008)
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