Improved Charge-Collection Efficiency in PCDTBT:PC<sub>71</sub>BM-Based Solar Cells via CS<sub>2</sub> Solvent Vapor Annealing

doi:10.1088/0256-307X/30/6/068801

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Abstract：Photo-generated charge collection is strongly correlated with the alignment and connectivity of the individual domains of donor and acceptor in bulk heterojunction polymer solar cells. It is found that CS₂ vapor annealing on PCDTBT:PC₇₁BM (1:4) blend effectively improves the hole-transport pathways of PCDTBT domains, which reduces accumulation of photo-generated charges and improves charge collection efficiency. The PCDTBT:PC₇₁BM-based solar cells with the active layer subjected to CS₂ vapor annealing demonstrate a high fill factor of 0.71–0.73 and a power conversion efficiency of 6.68%, about a 10% increase in comparison with the control cell.

收稿日期: 2013-03-22 出版日期: 2013-05-31

:	88.40.jr	(Organic photovoltaics)
	88.40.hj	(Efficiency and performance of solar cells)
	73.50.-h	(Electronic transport phenomena in thin films)

引用本文:

. [J]. 中国物理快报, 2013, 30(6): 68801-068801.
FANG Gang, WU Jiang, FU Ying-Ying, MENG Bin, XIE Zhi-Yuan, GUO Shi-Jie . Improved Charge-Collection Efficiency in PCDTBT:PC₇₁BM-Based Solar Cells via CS₂ Solvent Vapor Annealing. Chin. Phys. Lett., 2013, 30(6): 68801-068801.

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https://cpl.iphy.ac.cn/CN/10.1088/0256-307X/30/6/068801 或 https://cpl.iphy.ac.cn/CN/Y2013/V30/I6/68801

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